http://git-wip-us.apache.org/repos/asf/kylin/blob/5d4982e2/core-dictionary/src/main/java/org/apache/kylin/dict/TrieDictionaryBuilder.java
----------------------------------------------------------------------
diff --git 
a/core-dictionary/src/main/java/org/apache/kylin/dict/TrieDictionaryBuilder.java
 
b/core-dictionary/src/main/java/org/apache/kylin/dict/TrieDictionaryBuilder.java
index af602a0..330d64c 100644
--- 
a/core-dictionary/src/main/java/org/apache/kylin/dict/TrieDictionaryBuilder.java
+++ 
b/core-dictionary/src/main/java/org/apache/kylin/dict/TrieDictionaryBuilder.java
@@ -299,7 +299,7 @@ public class TrieDictionaryBuilder<T> {
         while (true) { // minimize the offset size to match the footprint
             int t = s.obpn_nNodes * (s.obpn_sizeValue + 
s.obpn_sizeNoValuesBeneath + s.obpn_sizeChildCount + s.obpn_sizeChildOffset - 
1);
             if (BytesUtil.sizeForValue(t * 2) <= s.obpn_sizeChildOffset - 1) { 
// *2
-                                                                               
// because
+                                                                               
    // because
                                                                                
// MSB
                                                                                
// of
                                                                                
// offset
@@ -323,7 +323,7 @@ public class TrieDictionaryBuilder<T> {
         while (true) { // minimize the offset size to match the footprint
             int t = s.mbpn_sizeValueTotal + s.mbpn_nNodes * 
(s.mbpn_sizeNoValueBytes + s.mbpn_sizeNoValueBeneath + s.mbpn_sizeChildOffset - 
1);
             if (BytesUtil.sizeForValue(t * 4) <= s.mbpn_sizeChildOffset - 1) { 
// *4
-                                                                               
// because
+                                                                               
    // because
                                                                                
// 2
                                                                                
// MSB
                                                                                
// of

http://git-wip-us.apache.org/repos/asf/kylin/blob/5d4982e2/core-dictionary/src/main/java/org/apache/kylin/dict/lookup/LookupStringTable.java
----------------------------------------------------------------------
diff --git 
a/core-dictionary/src/main/java/org/apache/kylin/dict/lookup/LookupStringTable.java
 
b/core-dictionary/src/main/java/org/apache/kylin/dict/lookup/LookupStringTable.java
index fd88fb0..f13275c 100644
--- 
a/core-dictionary/src/main/java/org/apache/kylin/dict/lookup/LookupStringTable.java
+++ 
b/core-dictionary/src/main/java/org/apache/kylin/dict/lookup/LookupStringTable.java
@@ -32,7 +32,7 @@ import org.apache.kylin.source.ReadableTable;
  * 
  */
 public class LookupStringTable extends LookupTable<String> {
-    
+
     private static final Comparator<String> dateStrComparator = new 
Comparator<String>() {
         @Override
         public int compare(String o1, String o2) {
@@ -50,21 +50,21 @@ public class LookupStringTable extends LookupTable<String> {
             return Double.compare(d1, d2);
         }
     };
-    
+
     private static final Comparator<String> defaultStrComparator = new 
Comparator<String>() {
         @Override
         public int compare(String o1, String o2) {
             return o1.compareTo(o2);
         }
     };
-    
+
     boolean[] colIsDateTime;
     boolean[] colIsNumber;
-    
+
     public LookupStringTable(TableDesc tableDesc, String[] keyColumns, 
ReadableTable table) throws IOException {
         super(tableDesc, keyColumns, table);
     }
-    
+
     @Override
     protected void init() throws IOException {
         ColumnDesc[] cols = tableDesc.getColumns();
@@ -75,7 +75,7 @@ public class LookupStringTable extends LookupTable<String> {
             colIsDateTime[i] = t.isDateTimeFamily();
             colIsNumber[i] = t.isNumberFamily();
         }
-        
+
         super.init();
     }
 
@@ -98,14 +98,14 @@ public class LookupStringTable extends LookupTable<String> {
         else
             return defaultStrComparator;
     }
-    
+
     @Override
     protected String toString(String cell) {
         return cell;
     }
 
-    public Class<?> getType() {
-        return String.class;
+    public Class<?> getType() {
+        return String.class;
     }
 
 }

http://git-wip-us.apache.org/repos/asf/kylin/blob/5d4982e2/core-dictionary/src/main/java/org/apache/kylin/dict/lookup/LookupTable.java
----------------------------------------------------------------------
diff --git 
a/core-dictionary/src/main/java/org/apache/kylin/dict/lookup/LookupTable.java 
b/core-dictionary/src/main/java/org/apache/kylin/dict/lookup/LookupTable.java
index 5a96df6..c0983d8 100644
--- 
a/core-dictionary/src/main/java/org/apache/kylin/dict/lookup/LookupTable.java
+++ 
b/core-dictionary/src/main/java/org/apache/kylin/dict/lookup/LookupTable.java
@@ -37,7 +37,7 @@ import com.google.common.collect.Sets;
 /**
  * An in-memory lookup table, in which each cell is an object of type T. The
  * table is indexed by specified PK for fast lookup.
- *
+ *
  * @author yangli9
  */
 abstract public class LookupTable<T> {
@@ -74,7 +74,7 @@ abstract public class LookupTable<T> {
     @SuppressWarnings("unchecked")
     private void initRow(String[] cols, int[] keyIndex) {
         T[] value = convertRow(cols);
-        T[] keyCols = (T[]) java.lang.reflect.Array.newInstance(getType(), 
keyIndex.length);
+        T[] keyCols = (T[]) java.lang.reflect.Array.newInstance(getType(), 
keyIndex.length);
         for (int i = 0; i < keyCols.length; i++)
             keyCols[i] = value[keyIndex[i]];
 
@@ -112,7 +112,7 @@ abstract public class LookupTable<T> {
         int returnIdx = 
tableDesc.findColumnByName(returnCol).getZeroBasedIndex();
         Comparator<T> colComp = getComparator(colIdx);
         Comparator<T> returnComp = getComparator(returnIdx);
-        
+
         T returnBegin = null;
         T returnEnd = null;
         for (T[] row : data.values()) {
@@ -149,7 +149,7 @@ abstract public class LookupTable<T> {
     }
 
     abstract protected Comparator<T> getComparator(int colIdx);
-    
+
     public String toString() {
         return "LookupTable [path=" + table + "]";
     }
@@ -168,8 +168,8 @@ abstract public class LookupTable<T> {
 
     abstract protected String toString(T cell);
 
-    abstract public Class<?> getType();
-
+    abstract public Class<?> getType();
+
     public void dump() {
         for (Array<T> key : data.keySet()) {
             System.out.println(toString(key.data) + " => " + 
toString(data.get(key)));

http://git-wip-us.apache.org/repos/asf/kylin/blob/5d4982e2/core-dictionary/src/main/java/org/apache/kylin/dict/lookup/SnapshotManager.java
----------------------------------------------------------------------
diff --git 
a/core-dictionary/src/main/java/org/apache/kylin/dict/lookup/SnapshotManager.java
 
b/core-dictionary/src/main/java/org/apache/kylin/dict/lookup/SnapshotManager.java
index b4b8011..6e93ae4 100644
--- 
a/core-dictionary/src/main/java/org/apache/kylin/dict/lookup/SnapshotManager.java
+++ 
b/core-dictionary/src/main/java/org/apache/kylin/dict/lookup/SnapshotManager.java
@@ -19,7 +19,6 @@
 package org.apache.kylin.dict.lookup;
 
 import java.io.IOException;
-import java.util.ArrayList;
 import java.util.NavigableSet;
 import java.util.concurrent.ConcurrentHashMap;
 

http://git-wip-us.apache.org/repos/asf/kylin/blob/5d4982e2/core-dictionary/src/test/java/org/apache/kylin/dict/AppendTrieDictionaryTest.java
----------------------------------------------------------------------
diff --git 
a/core-dictionary/src/test/java/org/apache/kylin/dict/AppendTrieDictionaryTest.java
 
b/core-dictionary/src/test/java/org/apache/kylin/dict/AppendTrieDictionaryTest.java
index e7603ec..0ea5ebe 100644
--- 
a/core-dictionary/src/test/java/org/apache/kylin/dict/AppendTrieDictionaryTest.java
+++ 
b/core-dictionary/src/test/java/org/apache/kylin/dict/AppendTrieDictionaryTest.java
@@ -18,6 +18,23 @@
 
 package org.apache.kylin.dict;
 
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertFalse;
+
+import java.io.BufferedReader;
+import java.io.ByteArrayInputStream;
+import java.io.ByteArrayOutputStream;
+import java.io.DataInputStream;
+import java.io.DataOutputStream;
+import java.io.FileInputStream;
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.InputStreamReader;
+import java.util.ArrayList;
+import java.util.Collections;
+import java.util.Random;
+import java.util.TreeMap;
+
 import org.apache.hadoop.conf.Configuration;
 import org.apache.hadoop.fs.FileSystem;
 import org.apache.hadoop.fs.Path;
@@ -27,12 +44,6 @@ import org.junit.BeforeClass;
 import org.junit.Ignore;
 import org.junit.Test;
 
-import java.io.*;
-import java.util.*;
-
-import static org.junit.Assert.assertEquals;
-import static org.junit.Assert.assertFalse;
-
 /**
  * Created by sunyerui on 16/4/28.
  */
@@ -53,16 +64,13 @@ public class AppendTrieDictionaryTest {
         String workingDir = 
KylinConfig.getInstanceFromEnv().getHdfsWorkingDirectory();
         try {
             FileSystem.get(new Path(workingDir).toUri(), new 
Configuration()).delete(new Path(workingDir), true);
-        } catch (IOException e) {}
+        } catch (IOException e) {
+        }
     }
 
-    public static final String[] words = new String[]{
-        "paint", "par", "part", "parts", "partition", "partitions",
-        "party", "partie", "parties", "patient",
-        "taste", "tar", "trie", "try", "tries",
-        "字典", "字典树", "字母", // non-ascii characters
-        "",  // empty
-        "paint", "tar", "try", // some dup
+    public static final String[] words = new String[] { "paint", "par", 
"part", "parts", "partition", "partitions", "party", "partie", "parties", 
"patient", "taste", "tar", "trie", "try", "tries", "字典", "字典树", 
"字母", // non-ascii characters
+            "", // empty
+            "paint", "tar", "try", // some dup
     };
 
     @Test
@@ -123,8 +131,9 @@ public class AppendTrieDictionaryTest {
             String word;
             while ((word = reader.readLine()) != null) {
                 word = word.trim();
-                if (!word.isEmpty());
-                    b.addValue(word);
+                if (!word.isEmpty())
+                    ;
+                b.addValue(word);
             }
         } finally {
             reader.close();
@@ -146,8 +155,8 @@ public class AppendTrieDictionaryTest {
         AppendTrieDictionary.Builder<String> b = 
AppendTrieDictionary.Builder.create("/tmp");
         AppendTrieDictionary<String> dict = null;
         TreeMap<Integer, String> checkMap = new TreeMap<>();
-        int firstAppend = rnd.nextInt(strList.size()/2);
-        int secondAppend = firstAppend + 
rnd.nextInt((strList.size()-firstAppend)/2);
+        int firstAppend = rnd.nextInt(strList.size() / 2);
+        int secondAppend = firstAppend + rnd.nextInt((strList.size() - 
firstAppend) / 2);
         int appendIndex = 0;
         int checkIndex = 0;
 
@@ -156,12 +165,11 @@ public class AppendTrieDictionaryTest {
         }
         dict = b.build(0);
         dict.dump(System.out);
-        for (;checkIndex < firstAppend; checkIndex++) {
+        for (; checkIndex < firstAppend; checkIndex++) {
             String str = strList.get(checkIndex);
             byte[] bytes = converter.convertToBytes(str);
             int id = dict.getIdFromValueBytesImpl(bytes, 0, bytes.length, 0);
-            assertFalse(String.format("Id %d for %s should be empty, but is 
%s", id, str, checkMap.get(id)),
-                    checkMap.containsKey(id) && !str.equals(checkMap.get(id)));
+            assertFalse(String.format("Id %d for %s should be empty, but is 
%s", id, str, checkMap.get(id)), checkMap.containsKey(id) && 
!str.equals(checkMap.get(id)));
             checkMap.put(id, str);
         }
 
@@ -175,7 +183,7 @@ public class AppendTrieDictionaryTest {
         dict = newDict;
         dict.dump(System.out);
         checkIndex = 0;
-        for (;checkIndex < secondAppend; checkIndex++) {
+        for (; checkIndex < secondAppend; checkIndex++) {
             String str = strList.get(checkIndex);
             byte[] bytes = converter.convertToBytes(str);
             int id = dict.getIdFromValueBytesImpl(bytes, 0, bytes.length, 0);
@@ -183,8 +191,7 @@ public class AppendTrieDictionaryTest {
                 assertEquals("Except id " + id + " for " + str + " but " + 
checkMap.get(id), str, checkMap.get(id));
             } else {
                 // check second append str, should be new id
-                assertFalse(String.format("Id %d for %s should be empty, but 
is %s", id, str, checkMap.get(id)),
-                    checkMap.containsKey(id) && !str.equals(checkMap.get(id)));
+                assertFalse(String.format("Id %d for %s should be empty, but 
is %s", id, str, checkMap.get(id)), checkMap.containsKey(id) && 
!str.equals(checkMap.get(id)));
                 checkMap.put(id, str);
             }
         }
@@ -207,8 +214,7 @@ public class AppendTrieDictionaryTest {
                 assertEquals("Except id " + id + " for " + str + " but " + 
checkMap.get(id), str, checkMap.get(id));
             } else {
                 // check third append str, should be new id
-                assertFalse(String.format("Id %d for %s should be empty, but 
is %s", id, str, checkMap.get(id)),
-                    checkMap.containsKey(id) && !str.equals(checkMap.get(id)));
+                assertFalse(String.format("Id %d for %s should be empty, but 
is %s", id, str, checkMap.get(id)), checkMap.containsKey(id) && 
!str.equals(checkMap.get(id)));
                 checkMap.put(id, str);
             }
         }

http://git-wip-us.apache.org/repos/asf/kylin/blob/5d4982e2/core-dictionary/src/test/java/org/apache/kylin/dict/NumberDictionaryTest.java
----------------------------------------------------------------------
diff --git 
a/core-dictionary/src/test/java/org/apache/kylin/dict/NumberDictionaryTest.java 
b/core-dictionary/src/test/java/org/apache/kylin/dict/NumberDictionaryTest.java
index b359170..6efd713 100644
--- 
a/core-dictionary/src/test/java/org/apache/kylin/dict/NumberDictionaryTest.java
+++ 
b/core-dictionary/src/test/java/org/apache/kylin/dict/NumberDictionaryTest.java
@@ -18,7 +18,8 @@
 
 package org.apache.kylin.dict;
 
-import static org.junit.Assert.*;
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.fail;
 
 import java.io.IOException;
 import java.math.BigDecimal;
@@ -51,7 +52,7 @@ public class NumberDictionaryTest {
         builder.addValue("" + Long.MAX_VALUE);
         builder.addValue("" + Long.MIN_VALUE);
         NumberDictionary<String> dict = builder.build(0);
-        
+
         int minId = dict.getIdFromValue("" + Long.MIN_VALUE);
         int maxId = dict.getIdFromValue("" + Long.MAX_VALUE);
         assertEquals(0, minId);
@@ -60,15 +61,15 @@ public class NumberDictionaryTest {
 
     @SuppressWarnings("unchecked")
     @Test
-    public void testEmptyInput() throws IOException{
+    public void testEmptyInput() throws IOException {
         String[] ints = new String[] { "", "0", "5", "100", "13" };
-        Collection<byte[]> intBytes = 
Lists.newArrayListWithCapacity(ints.length);
+        Collection<byte[]> intBytes = 
Lists.newArrayListWithCapacity(ints.length);
         for (String s : ints) {
             intBytes.add((s == null) ? null : Bytes.toBytes(s));
         }
 
         // check "" is treated as NULL, not a code of dictionary
-        Dictionary<?> dict = 
DictionaryGenerator.buildDictionary(DataType.getType("integer"), new 
IterableDictionaryValueEnumerator(intBytes));
+        Dictionary<?> dict = 
DictionaryGenerator.buildDictionary(DataType.getType("integer"), new 
IterableDictionaryValueEnumerator(intBytes));
         assertEquals(4, dict.getSize());
 
         final int id = ((NumberDictionary<String>) dict).getIdFromValue("");
@@ -187,7 +188,7 @@ public class NumberDictionaryTest {
             buf.append(".");
             for (int i = 0; i < digits2; i++)
                 buf.append("" + rand.nextInt(9) + 1); // BigDecimal thinks 4.5
-                                                      // != 4.50, my god!
+            // != 4.50, my god!
         }
         return buf.toString();
     }

http://git-wip-us.apache.org/repos/asf/kylin/blob/5d4982e2/core-dictionary/src/test/java/org/apache/kylin/dict/lookup/LookupTableTest.java
----------------------------------------------------------------------
diff --git 
a/core-dictionary/src/test/java/org/apache/kylin/dict/lookup/LookupTableTest.java
 
b/core-dictionary/src/test/java/org/apache/kylin/dict/lookup/LookupTableTest.java
index 3f67dcd..e4b32db 100644
--- 
a/core-dictionary/src/test/java/org/apache/kylin/dict/lookup/LookupTableTest.java
+++ 
b/core-dictionary/src/test/java/org/apache/kylin/dict/lookup/LookupTableTest.java
@@ -87,11 +87,11 @@ public class LookupTableTest extends 
LocalFileMetadataTestCase {
 
         
System.out.println(DateFormat.formatToDateStr(Long.parseLong(results.getFirst())));
         
System.out.println(DateFormat.formatToDateStr(Long.parseLong(results.getSecond())));
-        
+
         Assert.assertEquals(millis("2013-05-05"), results.getFirst());
         Assert.assertEquals(millis("2013-08-03"), results.getSecond());
     }
-    
+
     @Test
     public void testMapValues() throws Exception {
         Set<String> values = new HashSet<String>();
@@ -106,7 +106,7 @@ public class LookupTableTest extends 
LocalFileMetadataTestCase {
             Assert.assertEquals(millis("2012-01-01"), i);
         }
     }
-    
+
     private String millis(String dateStr) {
         return String.valueOf(DateFormat.stringToMillis(dateStr));
     }

http://git-wip-us.apache.org/repos/asf/kylin/blob/5d4982e2/core-job/src/main/java/org/apache/kylin/job/JobInstance.java
----------------------------------------------------------------------
diff --git a/core-job/src/main/java/org/apache/kylin/job/JobInstance.java 
b/core-job/src/main/java/org/apache/kylin/job/JobInstance.java
index e5a4540..50b30ab 100644
--- a/core-job/src/main/java/org/apache/kylin/job/JobInstance.java
+++ b/core-job/src/main/java/org/apache/kylin/job/JobInstance.java
@@ -35,6 +35,7 @@ import com.fasterxml.jackson.annotation.JsonBackReference;
 import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 import com.fasterxml.jackson.annotation.JsonManagedReference;
 import com.fasterxml.jackson.annotation.JsonProperty;
+
 import com.google.common.collect.Lists;
 
 @SuppressWarnings("serial")

http://git-wip-us.apache.org/repos/asf/kylin/blob/5d4982e2/core-job/src/main/java/org/apache/kylin/job/JoinedFlatTable.java
----------------------------------------------------------------------
diff --git a/core-job/src/main/java/org/apache/kylin/job/JoinedFlatTable.java 
b/core-job/src/main/java/org/apache/kylin/job/JoinedFlatTable.java
index d064cb1..41c301a 100644
--- a/core-job/src/main/java/org/apache/kylin/job/JoinedFlatTable.java
+++ b/core-job/src/main/java/org/apache/kylin/job/JoinedFlatTable.java
@@ -19,7 +19,6 @@
 package org.apache.kylin.job;
 
 import java.io.File;
-import java.io.IOException;
 import java.util.HashMap;
 import java.util.HashSet;
 import java.util.Map;
@@ -27,7 +26,6 @@ import java.util.Set;
 
 import javax.xml.parsers.DocumentBuilder;
 import javax.xml.parsers.DocumentBuilderFactory;
-import javax.xml.parsers.ParserConfigurationException;
 
 import org.apache.kylin.cube.CubeSegment;
 import org.apache.kylin.cube.model.CubeDesc;
@@ -42,7 +40,6 @@ import org.apache.kylin.metadata.model.PartitionDesc;
 import org.apache.kylin.metadata.model.TblColRef;
 import org.w3c.dom.Document;
 import org.w3c.dom.NodeList;
-import org.xml.sax.SAXException;
 
 /**
  * @author George Song (ysong1)

http://git-wip-us.apache.org/repos/asf/kylin/blob/5d4982e2/core-job/src/main/java/org/apache/kylin/job/SchedulerFactory.java
----------------------------------------------------------------------
diff --git a/core-job/src/main/java/org/apache/kylin/job/SchedulerFactory.java 
b/core-job/src/main/java/org/apache/kylin/job/SchedulerFactory.java
index 0e8207f..9504681 100644
--- a/core-job/src/main/java/org/apache/kylin/job/SchedulerFactory.java
+++ b/core-job/src/main/java/org/apache/kylin/job/SchedulerFactory.java
@@ -1,12 +1,12 @@
 package org.apache.kylin.job;
 
+import java.util.Map;
+
 import org.apache.kylin.common.KylinConfig;
 import org.apache.kylin.common.util.ImplementationSwitch;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
-import java.util.Map;
-
 /**
  */
 public class SchedulerFactory {

http://git-wip-us.apache.org/repos/asf/kylin/blob/5d4982e2/core-job/src/main/java/org/apache/kylin/job/common/ShellExecutable.java
----------------------------------------------------------------------
diff --git 
a/core-job/src/main/java/org/apache/kylin/job/common/ShellExecutable.java 
b/core-job/src/main/java/org/apache/kylin/job/common/ShellExecutable.java
index 209d14e..111c1ba 100644
--- a/core-job/src/main/java/org/apache/kylin/job/common/ShellExecutable.java
+++ b/core-job/src/main/java/org/apache/kylin/job/common/ShellExecutable.java
@@ -30,9 +30,9 @@ import org.apache.kylin.job.exception.ExecuteException;
 import org.apache.kylin.job.execution.AbstractExecutable;
 import org.apache.kylin.job.execution.ExecutableContext;
 import org.apache.kylin.job.execution.ExecuteResult;
+import org.slf4j.LoggerFactory;
 
 import com.google.common.collect.Maps;
-import org.slf4j.LoggerFactory;
 
 /**
  */
@@ -40,7 +40,6 @@ public class ShellExecutable extends AbstractExecutable {
 
     private static final org.slf4j.Logger logger = 
LoggerFactory.getLogger(ShellExecutable.class);
 
-
     private static final String CMD = "cmd";
 
     public ShellExecutable() {

http://git-wip-us.apache.org/repos/asf/kylin/blob/5d4982e2/core-job/src/main/java/org/apache/kylin/job/dao/ExecutableOutputPO.java
----------------------------------------------------------------------
diff --git 
a/core-job/src/main/java/org/apache/kylin/job/dao/ExecutableOutputPO.java 
b/core-job/src/main/java/org/apache/kylin/job/dao/ExecutableOutputPO.java
index 1e34f39..ad84a54 100644
--- a/core-job/src/main/java/org/apache/kylin/job/dao/ExecutableOutputPO.java
+++ b/core-job/src/main/java/org/apache/kylin/job/dao/ExecutableOutputPO.java
@@ -24,6 +24,7 @@ import 
org.apache.kylin.common.persistence.RootPersistentEntity;
 
 import com.fasterxml.jackson.annotation.JsonAutoDetect;
 import com.fasterxml.jackson.annotation.JsonProperty;
+
 import com.google.common.collect.Maps;
 
 /**

http://git-wip-us.apache.org/repos/asf/kylin/blob/5d4982e2/core-job/src/main/java/org/apache/kylin/job/dao/ExecutablePO.java
----------------------------------------------------------------------
diff --git a/core-job/src/main/java/org/apache/kylin/job/dao/ExecutablePO.java 
b/core-job/src/main/java/org/apache/kylin/job/dao/ExecutablePO.java
index 75717e0..a565335 100644
--- a/core-job/src/main/java/org/apache/kylin/job/dao/ExecutablePO.java
+++ b/core-job/src/main/java/org/apache/kylin/job/dao/ExecutablePO.java
@@ -25,6 +25,7 @@ import 
org.apache.kylin.common.persistence.RootPersistentEntity;
 
 import com.fasterxml.jackson.annotation.JsonAutoDetect;
 import com.fasterxml.jackson.annotation.JsonProperty;
+
 import com.google.common.collect.Maps;
 
 /**

http://git-wip-us.apache.org/repos/asf/kylin/blob/5d4982e2/core-job/src/main/java/org/apache/kylin/job/engine/JobEngineConfig.java
----------------------------------------------------------------------
diff --git 
a/core-job/src/main/java/org/apache/kylin/job/engine/JobEngineConfig.java 
b/core-job/src/main/java/org/apache/kylin/job/engine/JobEngineConfig.java
index 64e801e..8ba1730 100644
--- a/core-job/src/main/java/org/apache/kylin/job/engine/JobEngineConfig.java
+++ b/core-job/src/main/java/org/apache/kylin/job/engine/JobEngineConfig.java
@@ -24,7 +24,6 @@ import java.io.IOException;
 import org.apache.commons.lang.StringUtils;
 import org.apache.kylin.common.KylinConfig;
 import org.apache.kylin.common.util.OptionsHelper;
-import org.apache.kylin.metadata.model.DataModelDesc.RealizationCapacity;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
@@ -79,7 +78,7 @@ public class JobEngineConfig {
      */
     public String getHadoopJobConfFilePath(String jobType) throws IOException {
         String suffix = null;
-        if(!StringUtils.isEmpty(jobType)) {
+        if (!StringUtils.isEmpty(jobType)) {
             suffix = jobType;
         }
 

http://git-wip-us.apache.org/repos/asf/kylin/blob/5d4982e2/core-job/src/main/java/org/apache/kylin/job/execution/AbstractExecutable.java
----------------------------------------------------------------------
diff --git 
a/core-job/src/main/java/org/apache/kylin/job/execution/AbstractExecutable.java 
b/core-job/src/main/java/org/apache/kylin/job/execution/AbstractExecutable.java
index aee71f7..ab70007 100644
--- 
a/core-job/src/main/java/org/apache/kylin/job/execution/AbstractExecutable.java
+++ 
b/core-job/src/main/java/org/apache/kylin/job/execution/AbstractExecutable.java
@@ -76,7 +76,6 @@ public abstract class AbstractExecutable implements 
Executable, Idempotent {
             } else {
                 executableManager.updateJobOutput(getId(), 
ExecutableState.ERROR, null, result.output());
             }
-        } else {
         }
     }
 
@@ -90,7 +89,6 @@ public abstract class AbstractExecutable implements 
Executable, Idempotent {
                 output = out.toString();
             }
             executableManager.updateJobOutput(getId(), ExecutableState.ERROR, 
null, output);
-        } else {
         }
     }
 

http://git-wip-us.apache.org/repos/asf/kylin/blob/5d4982e2/core-job/src/main/java/org/apache/kylin/job/impl/threadpool/DefaultScheduler.java
----------------------------------------------------------------------
diff --git 
a/core-job/src/main/java/org/apache/kylin/job/impl/threadpool/DefaultScheduler.java
 
b/core-job/src/main/java/org/apache/kylin/job/impl/threadpool/DefaultScheduler.java
index dd22234..816db01 100644
--- 
a/core-job/src/main/java/org/apache/kylin/job/impl/threadpool/DefaultScheduler.java
+++ 
b/core-job/src/main/java/org/apache/kylin/job/impl/threadpool/DefaultScheduler.java
@@ -171,11 +171,10 @@ public class DefaultScheduler implements 
Scheduler<AbstractExecutable>, Connecti
         }
     }
 
-
     @Override
     public synchronized void init(JobEngineConfig jobEngineConfig, final 
JobLock jobLock) throws SchedulerException {
         String serverMode = jobEngineConfig.getConfig().getServerMode();
-        if (! ("job".equals(serverMode.toLowerCase()) || 
"all".equals(serverMode.toLowerCase()))) {
+        if (!("job".equals(serverMode.toLowerCase()) || 
"all".equals(serverMode.toLowerCase()))) {
             logger.info("server mode: " + serverMode + ", no need to run job 
scheduler");
             return;
         }

http://git-wip-us.apache.org/repos/asf/kylin/blob/5d4982e2/core-metadata/src/main/java/org/apache/kylin/dimension/AbstractDateDimEnc.java
----------------------------------------------------------------------
diff --git 
a/core-metadata/src/main/java/org/apache/kylin/dimension/AbstractDateDimEnc.java
 
b/core-metadata/src/main/java/org/apache/kylin/dimension/AbstractDateDimEnc.java
index 41460ed..e6d4be5 100644
--- 
a/core-metadata/src/main/java/org/apache/kylin/dimension/AbstractDateDimEnc.java
+++ 
b/core-metadata/src/main/java/org/apache/kylin/dimension/AbstractDateDimEnc.java
@@ -88,7 +88,7 @@ public class AbstractDateDimEnc extends DimensionEncoding {
         long code = BytesUtil.readLong(bytes, offset, fixedLen);
         if (code < 0)
             throw new IllegalArgumentException();
-        
+
         long millis = codec.codeToMillis(code);
         return String.valueOf(millis);
     }

http://git-wip-us.apache.org/repos/asf/kylin/blob/5d4982e2/core-metadata/src/main/java/org/apache/kylin/dimension/DimensionEncoding.java
----------------------------------------------------------------------
diff --git 
a/core-metadata/src/main/java/org/apache/kylin/dimension/DimensionEncoding.java 
b/core-metadata/src/main/java/org/apache/kylin/dimension/DimensionEncoding.java
index 994982b..c6ec607 100644
--- 
a/core-metadata/src/main/java/org/apache/kylin/dimension/DimensionEncoding.java
+++ 
b/core-metadata/src/main/java/org/apache/kylin/dimension/DimensionEncoding.java
@@ -37,7 +37,7 @@ public abstract class DimensionEncoding implements 
Externalizable {
 
     // it's convention that all 0xff means NULL
     public static final byte NULL = (byte) 0xff;
-    
+
     public static boolean isNull(byte[] bytes, int offset, int length) {
         // all 0xFF is NULL
         if (length == 0) {
@@ -60,19 +60,19 @@ public abstract class DimensionEncoding implements 
Externalizable {
         final String[] encodingArgs = parts[parts.length - 1].isEmpty() //
                 ? StringUtil.subArray(parts, 1, parts.length - 1) : 
StringUtil.subArray(parts, 1, parts.length);
 
-        return new Object[] {encodingName, encodingArgs};
+        return new Object[] { encodingName, encodingArgs };
     }
 
     /** return the fixed length of encoded bytes */
     abstract public int getLengthOfEncoding();
-    
+
     /** encode given value (a string in byte form) to bytes, note the NULL 
convention */
     abstract public void encode(byte[] value, int valueLen, byte[] output, int 
outputOffset);
-    
+
     /** decode given bytes to value string, note the NULL convention */
     abstract public String decode(byte[] bytes, int offset, int len);
-    
+
     /** return a DataTypeSerializer that does the same encoding/decoding on 
ByteBuffer */
     abstract public DataTypeSerializer<Object> asDataTypeSerializer();
-    
+
 }

http://git-wip-us.apache.org/repos/asf/kylin/blob/5d4982e2/core-metadata/src/main/java/org/apache/kylin/dimension/DimensionEncodingFactory.java
----------------------------------------------------------------------
diff --git 
a/core-metadata/src/main/java/org/apache/kylin/dimension/DimensionEncodingFactory.java
 
b/core-metadata/src/main/java/org/apache/kylin/dimension/DimensionEncodingFactory.java
index 9b0aa7c..4f70be8 100644
--- 
a/core-metadata/src/main/java/org/apache/kylin/dimension/DimensionEncodingFactory.java
+++ 
b/core-metadata/src/main/java/org/apache/kylin/dimension/DimensionEncodingFactory.java
@@ -53,13 +53,13 @@ public abstract class DimensionEncodingFactory {
     public static Set<String> getValidEncodings() {
         if (factoryMap == null)
             initFactoryMap();
-        
+
         TreeSet<String> result = Sets.newTreeSet();
         result.addAll(factoryMap.keySet());
         result.add(DictionaryDimEnc.ENCODING_NAME);
         return result;
     }
-    
+
     public static boolean isVaildEncoding(String encodingName) {
         if (factoryMap == null)
             initFactoryMap();

http://git-wip-us.apache.org/repos/asf/kylin/blob/5d4982e2/core-metadata/src/main/java/org/apache/kylin/dimension/FixedLenDimEnc.java
----------------------------------------------------------------------
diff --git 
a/core-metadata/src/main/java/org/apache/kylin/dimension/FixedLenDimEnc.java 
b/core-metadata/src/main/java/org/apache/kylin/dimension/FixedLenDimEnc.java
index 7805fcc..bc47364 100644
--- a/core-metadata/src/main/java/org/apache/kylin/dimension/FixedLenDimEnc.java
+++ b/core-metadata/src/main/java/org/apache/kylin/dimension/FixedLenDimEnc.java
@@ -60,15 +60,17 @@ public class FixedLenDimEnc extends DimensionEncoding {
     //no-arg constructor is required for Externalizable
     public FixedLenDimEnc() {
     }
-    
+
     public FixedLenDimEnc(int len) {
         this.fixedLen = len;
     }
 
     @Override
     public boolean equals(Object o) {
-        if (this == o) return true;
-        if (o == null || getClass() != o.getClass()) return false;
+        if (this == o)
+            return true;
+        if (o == null || getClass() != o.getClass())
+            return false;
 
         FixedLenDimEnc that = (FixedLenDimEnc) o;
 

http://git-wip-us.apache.org/repos/asf/kylin/blob/5d4982e2/core-metadata/src/main/java/org/apache/kylin/dimension/IDimensionEncodingMap.java
----------------------------------------------------------------------
diff --git 
a/core-metadata/src/main/java/org/apache/kylin/dimension/IDimensionEncodingMap.java
 
b/core-metadata/src/main/java/org/apache/kylin/dimension/IDimensionEncodingMap.java
index b53376b..4df4701 100644
--- 
a/core-metadata/src/main/java/org/apache/kylin/dimension/IDimensionEncodingMap.java
+++ 
b/core-metadata/src/main/java/org/apache/kylin/dimension/IDimensionEncodingMap.java
@@ -34,8 +34,8 @@ public interface IDimensionEncodingMap {
 
     /** Get dimension encoding of a column */
     DimensionEncoding get(TblColRef col);
-    
+
     /** Get dictionary of a column if its encoding is dictionary based */
     Dictionary<String> getDictionary(TblColRef col);
-    
+
 }

http://git-wip-us.apache.org/repos/asf/kylin/blob/5d4982e2/core-metadata/src/main/java/org/apache/kylin/dimension/IntegerDimEnc.java
----------------------------------------------------------------------
diff --git 
a/core-metadata/src/main/java/org/apache/kylin/dimension/IntegerDimEnc.java 
b/core-metadata/src/main/java/org/apache/kylin/dimension/IntegerDimEnc.java
index 3f01948..89b14fc 100644
--- a/core-metadata/src/main/java/org/apache/kylin/dimension/IntegerDimEnc.java
+++ b/core-metadata/src/main/java/org/apache/kylin/dimension/IntegerDimEnc.java
@@ -35,7 +35,7 @@ public class IntegerDimEnc extends DimensionEncoding {
 
     private static Logger logger = 
LoggerFactory.getLogger(IntegerDimEnc.class);
 
-    private static final long CAP[] = { 0, 0xffL, 0xffffL, 0xffffffL, 
0xffffffffL, 0xffffffffffL, 0xffffffffffffL, 0xffffffffffffffL, Long.MAX_VALUE 
};
+    private static final long[] CAP = { 0, 0xffL, 0xffffL, 0xffffffL, 
0xffffffffL, 0xffffffffffL, 0xffffffffffffL, 0xffffffffffffffL, Long.MAX_VALUE 
};
 
     public static final String ENCODING_NAME = "int";
 
@@ -173,11 +173,12 @@ public class IntegerDimEnc extends DimensionEncoding {
         fixedLen = in.readShort();
     }
 
-
     @Override
     public boolean equals(Object o) {
-        if (this == o) return true;
-        if (o == null || getClass() != o.getClass()) return false;
+        if (this == o)
+            return true;
+        if (o == null || getClass() != o.getClass())
+            return false;
 
         IntegerDimEnc that = (IntegerDimEnc) o;
 

http://git-wip-us.apache.org/repos/asf/kylin/blob/5d4982e2/core-metadata/src/main/java/org/apache/kylin/measure/BufferedMeasureEncoder.java
----------------------------------------------------------------------
diff --git 
a/core-metadata/src/main/java/org/apache/kylin/measure/BufferedMeasureEncoder.java
 
b/core-metadata/src/main/java/org/apache/kylin/measure/BufferedMeasureEncoder.java
index b9e9790..2b14715 100644
--- 
a/core-metadata/src/main/java/org/apache/kylin/measure/BufferedMeasureEncoder.java
+++ 
b/core-metadata/src/main/java/org/apache/kylin/measure/BufferedMeasureEncoder.java
@@ -44,7 +44,7 @@ public class BufferedMeasureEncoder {
         this.codec = new MeasureDecoder(measureDescs);
         this.measureSizes = new int[codec.nMeasures];
     }
-    
+
     public BufferedMeasureEncoder(MeasureDesc... measureDescs) {
         this.codec = new MeasureDecoder(measureDescs);
         this.measureSizes = new int[codec.nMeasures];
@@ -54,7 +54,7 @@ public class BufferedMeasureEncoder {
         this.codec = new MeasureDecoder(dataTypes);
         this.measureSizes = new int[codec.nMeasures];
     }
-    
+
     public BufferedMeasureEncoder(String... dataTypes) {
         this.codec = new MeasureDecoder(dataTypes);
         this.measureSizes = new int[codec.nMeasures];
@@ -95,7 +95,7 @@ public class BufferedMeasureEncoder {
                     pos = buf.position();
                 }
                 return buf;
-                
+
             } catch (BufferOverflowException boe) {
                 if (buf.capacity() >= MAX_BUFFER_SIZE)
                     throw boe;

http://git-wip-us.apache.org/repos/asf/kylin/blob/5d4982e2/core-metadata/src/main/java/org/apache/kylin/measure/MeasureAggregator.java
----------------------------------------------------------------------
diff --git 
a/core-metadata/src/main/java/org/apache/kylin/measure/MeasureAggregator.java 
b/core-metadata/src/main/java/org/apache/kylin/measure/MeasureAggregator.java
index 4c031c7..7b74225 100644
--- 
a/core-metadata/src/main/java/org/apache/kylin/measure/MeasureAggregator.java
+++ 
b/core-metadata/src/main/java/org/apache/kylin/measure/MeasureAggregator.java
@@ -34,9 +34,9 @@ abstract public class MeasureAggregator<V> implements 
Serializable {
     public static int guessBigDecimalMemBytes() {
         // 116 returned by AggregationCacheMemSizeTest
         return 8 // aggregator obj shell
-        + 8 // ref to BigDecimal
-        + 8 // BigDecimal obj shell
-        + 100; // guess of BigDecimal internal
+                + 8 // ref to BigDecimal
+                + 8 // BigDecimal obj shell
+                + 100; // guess of BigDecimal internal
     }
 
     public static int guessDoubleMemBytes() {

http://git-wip-us.apache.org/repos/asf/kylin/blob/5d4982e2/core-metadata/src/main/java/org/apache/kylin/measure/MeasureAggregators.java
----------------------------------------------------------------------
diff --git 
a/core-metadata/src/main/java/org/apache/kylin/measure/MeasureAggregators.java 
b/core-metadata/src/main/java/org/apache/kylin/measure/MeasureAggregators.java
index ede690b..2b28302 100644
--- 
a/core-metadata/src/main/java/org/apache/kylin/measure/MeasureAggregators.java
+++ 
b/core-metadata/src/main/java/org/apache/kylin/measure/MeasureAggregators.java
@@ -68,7 +68,7 @@ public class MeasureAggregators implements Serializable {
             aggs[i].reset();
         }
     }
-    
+
     public void aggregate(Object[] values) {
         assert values.length == descLength;
 

http://git-wip-us.apache.org/repos/asf/kylin/blob/5d4982e2/core-metadata/src/main/java/org/apache/kylin/measure/MeasureIngester.java
----------------------------------------------------------------------
diff --git 
a/core-metadata/src/main/java/org/apache/kylin/measure/MeasureIngester.java 
b/core-metadata/src/main/java/org/apache/kylin/measure/MeasureIngester.java
index bc387fe..0076252 100644
--- a/core-metadata/src/main/java/org/apache/kylin/measure/MeasureIngester.java
+++ b/core-metadata/src/main/java/org/apache/kylin/measure/MeasureIngester.java
@@ -26,11 +26,11 @@ import org.apache.kylin.metadata.model.MeasureDesc;
 import org.apache.kylin.metadata.model.TblColRef;
 
 abstract public class MeasureIngester<V> {
-    
+
     public static MeasureIngester<?> create(MeasureDesc measure) {
         return measure.getFunction().getMeasureType().newIngester();
     }
-    
+
     public static MeasureIngester<?>[] create(Collection<MeasureDesc> 
measures) {
         MeasureIngester<?>[] result = new MeasureIngester<?>[measures.size()];
         int i = 0;
@@ -41,7 +41,7 @@ abstract public class MeasureIngester<V> {
     }
 
     abstract public V valueOf(String[] values, MeasureDesc measureDesc, 
Map<TblColRef, Dictionary<String>> dictionaryMap);
-    
+
     public V reEncodeDictionary(V value, MeasureDesc measureDesc, 
Map<TblColRef, Dictionary<String>> oldDicts, Map<TblColRef, Dictionary<String>> 
newDicts) {
         throw new UnsupportedOperationException();
     }

http://git-wip-us.apache.org/repos/asf/kylin/blob/5d4982e2/core-metadata/src/main/java/org/apache/kylin/measure/MeasureType.java
----------------------------------------------------------------------
diff --git 
a/core-metadata/src/main/java/org/apache/kylin/measure/MeasureType.java 
b/core-metadata/src/main/java/org/apache/kylin/measure/MeasureType.java
index 9cccbde..6786f4b 100644
--- a/core-metadata/src/main/java/org/apache/kylin/measure/MeasureType.java
+++ b/core-metadata/src/main/java/org/apache/kylin/measure/MeasureType.java
@@ -39,16 +39,16 @@ import org.apache.kylin.metadata.tuple.TupleInfo;
  * @param <T> the Java type of aggregation data object, e.g. 
HyperLogLogPlusCounter
  */
 abstract public class MeasureType<T> {
-    
+
     /* 
============================================================================
      * Define
      * 
---------------------------------------------------------------------------- */
-    
+
     /** Validates a user defined FunctionDesc has expected parameter etc. 
Throw IllegalArgumentException if anything wrong. */
     public void validate(FunctionDesc functionDesc) throws 
IllegalArgumentException {
         return;
     }
-    
+
     /** Although most aggregated object takes only 8 bytes like long or 
double, 
      * some advanced aggregation like HyperLogLog or TopN can consume more 
than 10 KB for 
      * each object, which requires special care on memory allocation. */
@@ -60,17 +60,17 @@ abstract public class MeasureType<T> {
     public boolean onlyAggrInBaseCuboid() {
         return false;
     }
-    
+
     /* 
============================================================================
      * Build
      * 
---------------------------------------------------------------------------- */
 
     /** Return a MeasureIngester which knows how to init aggregation object 
from raw records. */
     abstract public MeasureIngester<T> newIngester();
-    
+
     /** Return a MeasureAggregator which does aggregation. */
     abstract public MeasureAggregator<T> newAggregator();
- 
+
     /** Some special measures need dictionary to encode column values for 
optimal storage. TopN is an example. */
     public List<TblColRef> getColumnsNeedDictionary(FunctionDesc functionDesc) 
{
         return Collections.emptyList();
@@ -79,7 +79,7 @@ abstract public class MeasureType<T> {
     /* 
============================================================================
      * Cube Selection
      * 
---------------------------------------------------------------------------- */
-    
+
     /**
      * Some special measures hold columns which are usually treated as 
dimensions (or vice-versa). 
      * This is where they override to influence cube capability check.
@@ -97,13 +97,13 @@ abstract public class MeasureType<T> {
     public CapabilityInfluence influenceCapabilityCheck(Collection<TblColRef> 
unmatchedDimensions, Collection<FunctionDesc> unmatchedAggregations, SQLDigest 
digest, MeasureDesc measureDesc) {
         return null;
     }
-    
+
     /* 
============================================================================
      * Query Rewrite
      * 
---------------------------------------------------------------------------- */
-    
+
     // TODO support user defined Calcite aggr function
-    
+
     /** Whether or not Calcite rel-tree needs rewrite to do last around of 
aggregation */
     abstract public boolean needRewrite();
 
@@ -114,11 +114,11 @@ abstract public class MeasureType<T> {
 
     /** Returns a Calcite aggregation function implementation class */
     abstract public Class<?> getRewriteCalciteAggrFunctionClass();
-    
+
     /* 
============================================================================
      * Storage
      * 
---------------------------------------------------------------------------- */
-    
+
     /**
      * Some special measures hold columns which are usually treated as 
dimensions (or vice-versa). 
      * They need to adjust dimensions and measures in <code>sqlDigest</code> 
before scanning,
@@ -126,7 +126,7 @@ abstract public class MeasureType<T> {
      */
     public void adjustSqlDigest(MeasureDesc measureDesc, SQLDigest sqlDigest) {
     }
-    
+
     /** Return true if one storage record maps to multiple tuples, or false 
otherwise. */
     public boolean needAdvancedTupleFilling() {
         return false;
@@ -136,20 +136,20 @@ abstract public class MeasureType<T> {
     public void fillTupleSimply(Tuple tuple, int indexInTuple, Object 
measureValue) {
         tuple.setMeasureValue(indexInTuple, measureValue);
     }
-    
+
     /** The advanced filling mode, multiple tuples per storage record. */
     public IAdvMeasureFiller getAdvancedTupleFiller(FunctionDesc function, 
TupleInfo returnTupleInfo, Map<TblColRef, Dictionary<String>> dictionaryMap) {
         throw new UnsupportedOperationException();
     }
-    
+
     public static interface IAdvMeasureFiller {
-        
+
         /** Reload a value from storage and get ready to fill multiple tuples 
with it. */
         void reload(Object measureValue);
-        
+
         /** Returns how many rows contained in last loaded value. */
         int getNumOfRows();
-        
+
         /** Fill in specified row into tuple. */
         void fillTuple(Tuple tuple, int row);
     }

http://git-wip-us.apache.org/repos/asf/kylin/blob/5d4982e2/core-metadata/src/main/java/org/apache/kylin/measure/basic/BasicMeasureType.java
----------------------------------------------------------------------
diff --git 
a/core-metadata/src/main/java/org/apache/kylin/measure/basic/BasicMeasureType.java
 
b/core-metadata/src/main/java/org/apache/kylin/measure/basic/BasicMeasureType.java
index b8d201e..4ab4584 100644
--- 
a/core-metadata/src/main/java/org/apache/kylin/measure/basic/BasicMeasureType.java
+++ 
b/core-metadata/src/main/java/org/apache/kylin/measure/basic/BasicMeasureType.java
@@ -28,7 +28,7 @@ import org.apache.kylin.metadata.model.FunctionDesc;
 
 @SuppressWarnings("rawtypes")
 public class BasicMeasureType extends MeasureType {
-    
+
     public static class Factory extends MeasureTypeFactory {
 
         @Override
@@ -64,7 +64,7 @@ public class BasicMeasureType extends MeasureType {
     @Override
     public void validate(FunctionDesc functionDesc) throws 
IllegalArgumentException {
         DataType rtype = dataType;
-        
+
         if (funcName.equals(FunctionDesc.FUNC_SUM)) {
             if (rtype.isNumberFamily() == false) {
                 throw new IllegalArgumentException("Return type for function " 
+ funcName + " must be one of " + DataType.NUMBER_FAMILY);
@@ -83,7 +83,7 @@ public class BasicMeasureType extends MeasureType {
                 throw new IllegalArgumentException("Unrecognized function: [" 
+ funcName + "]");
         }
     }
-    
+
     @Override
     public MeasureIngester<?> newIngester() {
         if (dataType.isIntegerFamily())

http://git-wip-us.apache.org/repos/asf/kylin/blob/5d4982e2/core-metadata/src/main/java/org/apache/kylin/measure/basic/BigDecimalIngester.java
----------------------------------------------------------------------
diff --git 
a/core-metadata/src/main/java/org/apache/kylin/measure/basic/BigDecimalIngester.java
 
b/core-metadata/src/main/java/org/apache/kylin/measure/basic/BigDecimalIngester.java
index 721ba00..b51917c 100644
--- 
a/core-metadata/src/main/java/org/apache/kylin/measure/basic/BigDecimalIngester.java
+++ 
b/core-metadata/src/main/java/org/apache/kylin/measure/basic/BigDecimalIngester.java
@@ -32,7 +32,7 @@ public class BigDecimalIngester extends 
MeasureIngester<BigDecimal> {
     public BigDecimal valueOf(String[] values, MeasureDesc measureDesc, 
Map<TblColRef, Dictionary<String>> dictionaryMap) {
         if (values.length > 1)
             throw new IllegalArgumentException();
-        
+
         if (values[0] == null)
             return new BigDecimal(0);
         else

http://git-wip-us.apache.org/repos/asf/kylin/blob/5d4982e2/core-metadata/src/main/java/org/apache/kylin/measure/basic/DoubleIngester.java
----------------------------------------------------------------------
diff --git 
a/core-metadata/src/main/java/org/apache/kylin/measure/basic/DoubleIngester.java
 
b/core-metadata/src/main/java/org/apache/kylin/measure/basic/DoubleIngester.java
index 70ca727..8356faa 100644
--- 
a/core-metadata/src/main/java/org/apache/kylin/measure/basic/DoubleIngester.java
+++ 
b/core-metadata/src/main/java/org/apache/kylin/measure/basic/DoubleIngester.java
@@ -27,7 +27,7 @@ import org.apache.kylin.metadata.model.MeasureDesc;
 import org.apache.kylin.metadata.model.TblColRef;
 
 public class DoubleIngester extends MeasureIngester<DoubleMutable> {
-    
+
     // avoid repeated object creation
     private DoubleMutable current = new DoubleMutable();
 
@@ -35,7 +35,7 @@ public class DoubleIngester extends 
MeasureIngester<DoubleMutable> {
     public DoubleMutable valueOf(String[] values, MeasureDesc measureDesc, 
Map<TblColRef, Dictionary<String>> dictionaryMap) {
         if (values.length > 1)
             throw new IllegalArgumentException();
-        
+
         DoubleMutable l = current;
         if (values[0] == null)
             l.set(0L);

http://git-wip-us.apache.org/repos/asf/kylin/blob/5d4982e2/core-metadata/src/main/java/org/apache/kylin/measure/basic/LongIngester.java
----------------------------------------------------------------------
diff --git 
a/core-metadata/src/main/java/org/apache/kylin/measure/basic/LongIngester.java 
b/core-metadata/src/main/java/org/apache/kylin/measure/basic/LongIngester.java
index 2547162..bfe6fe8 100644
--- 
a/core-metadata/src/main/java/org/apache/kylin/measure/basic/LongIngester.java
+++ 
b/core-metadata/src/main/java/org/apache/kylin/measure/basic/LongIngester.java
@@ -27,7 +27,7 @@ import org.apache.kylin.metadata.model.MeasureDesc;
 import org.apache.kylin.metadata.model.TblColRef;
 
 public class LongIngester extends MeasureIngester<LongMutable> {
-    
+
     // avoid repeated object creation
     private LongMutable current = new LongMutable();
 
@@ -35,7 +35,7 @@ public class LongIngester extends 
MeasureIngester<LongMutable> {
     public LongMutable valueOf(String[] values, MeasureDesc measureDesc, 
Map<TblColRef, Dictionary<String>> dictionaryMap) {
         if (values.length > 1)
             throw new IllegalArgumentException();
-        
+
         LongMutable l = current;
         if (values[0] == null)
             l.set(0L);

http://git-wip-us.apache.org/repos/asf/kylin/blob/5d4982e2/core-metadata/src/main/java/org/apache/kylin/measure/bitmap/BitmapCounter.java
----------------------------------------------------------------------
diff --git 
a/core-metadata/src/main/java/org/apache/kylin/measure/bitmap/BitmapCounter.java
 
b/core-metadata/src/main/java/org/apache/kylin/measure/bitmap/BitmapCounter.java
index bbf812a..b52adde 100644
--- 
a/core-metadata/src/main/java/org/apache/kylin/measure/bitmap/BitmapCounter.java
+++ 
b/core-metadata/src/main/java/org/apache/kylin/measure/bitmap/BitmapCounter.java
@@ -18,12 +18,16 @@
 
 package org.apache.kylin.measure.bitmap;
 
-import org.roaringbitmap.buffer.MutableRoaringBitmap;
-
-import java.io.*;
+import java.io.ByteArrayOutputStream;
+import java.io.DataInputStream;
+import java.io.DataOutputStream;
+import java.io.IOException;
+import java.io.InputStream;
 import java.nio.ByteBuffer;
 import java.util.Iterator;
 
+import org.roaringbitmap.buffer.MutableRoaringBitmap;
+
 /**
  * Created by sunyerui on 15/12/1.
  */
@@ -46,14 +50,15 @@ public class BitmapCounter implements 
Comparable<BitmapCounter> {
         bitmap.add(value);
     }
 
-    public void add(byte[] value) {add(value, 0, value.length);
+    public void add(byte[] value) {
+        add(value, 0, value.length);
     }
 
     public void add(byte[] value, int offset, int length) {
         if (value == null || length == 0) {
             return;
         }
-        
+
         add(new String(value, offset, length));
     }
 
@@ -92,7 +97,7 @@ public class BitmapCounter implements 
Comparable<BitmapCounter> {
 
     public void readRegisters(ByteBuffer in) throws IOException {
         DataInputByteBuffer input = new DataInputByteBuffer();
-        input.reset(new ByteBuffer[]{in});
+        input.reset(new ByteBuffer[] { in });
         bitmap.deserialize(input);
     }
 
@@ -137,11 +142,12 @@ public class BitmapCounter implements 
Comparable<BitmapCounter> {
         int len;
 
         DataInputByteBuffer input = new DataInputByteBuffer();
-        input.reset(new ByteBuffer[]{in});
+        input.reset(new ByteBuffer[] { in });
         MutableRoaringBitmap bitmap = new MutableRoaringBitmap();
         try {
             bitmap.deserialize(input);
         } catch (IOException e) {
+            throw new IllegalStateException(e);
         }
 
         len = in.position() - mark;
@@ -190,11 +196,11 @@ public class BitmapCounter implements 
Comparable<BitmapCounter> {
             }
 
             public int read() {
-                return -1 == this.read(this.scratch, 0, 1)?-1:this.scratch[0] 
& 255;
+                return -1 == this.read(this.scratch, 0, 1) ? -1 : 
this.scratch[0] & 255;
             }
 
             public int read(byte[] b, int off, int len) {
-                if(this.bidx >= this.buffers.length) {
+                if (this.bidx >= this.buffers.length) {
                     return -1;
                 } else {
                     int cur = 0;
@@ -205,7 +211,7 @@ public class BitmapCounter implements 
Comparable<BitmapCounter> {
                         cur += rem;
                         off += rem;
                         len -= rem;
-                    } while(len > 0 && ++this.bidx < this.buffers.length);
+                    } while (len > 0 && ++this.bidx < this.buffers.length);
 
                     this.pos += cur;
                     return cur;
@@ -218,7 +224,7 @@ public class BitmapCounter implements 
Comparable<BitmapCounter> {
                 ByteBuffer[] arr$ = buffers;
                 int len$ = buffers.length;
 
-                for(int i$ = 0; i$ < len$; ++i$) {
+                for (int i$ = 0; i$ < len$; ++i$) {
                     ByteBuffer b = arr$[i$];
                     this.length += b.remaining();
                 }

http://git-wip-us.apache.org/repos/asf/kylin/blob/5d4982e2/core-metadata/src/main/java/org/apache/kylin/measure/bitmap/BitmapDistinctCountAggFunc.java
----------------------------------------------------------------------
diff --git 
a/core-metadata/src/main/java/org/apache/kylin/measure/bitmap/BitmapDistinctCountAggFunc.java
 
b/core-metadata/src/main/java/org/apache/kylin/measure/bitmap/BitmapDistinctCountAggFunc.java
index be6d28a..d039b6d 100644
--- 
a/core-metadata/src/main/java/org/apache/kylin/measure/bitmap/BitmapDistinctCountAggFunc.java
+++ 
b/core-metadata/src/main/java/org/apache/kylin/measure/bitmap/BitmapDistinctCountAggFunc.java
@@ -26,27 +26,27 @@ import org.slf4j.LoggerFactory;
  */
 public class BitmapDistinctCountAggFunc {
 
-  private static final Logger logger = 
LoggerFactory.getLogger(BitmapDistinctCountAggFunc.class);
-
-  public static BitmapCounter init() {
-    return null;
-  }
-
-  public static BitmapCounter add(BitmapCounter counter, Object v) {
-      BitmapCounter c = (BitmapCounter) v;
-      if (counter == null) {
-        return new BitmapCounter(c);
-      } else {
-        counter.merge(c);
-        return counter;
-      }
-  }
-
-  public static BitmapCounter merge(BitmapCounter counter0, Object counter1) {
-      return add(counter0, counter1);
-  }
-
-  public static long result(BitmapCounter counter) {
-      return counter == null ? 0L : counter.getCount();
-  }
+    private static final Logger logger = 
LoggerFactory.getLogger(BitmapDistinctCountAggFunc.class);
+
+    public static BitmapCounter init() {
+        return null;
+    }
+
+    public static BitmapCounter add(BitmapCounter counter, Object v) {
+        BitmapCounter c = (BitmapCounter) v;
+        if (counter == null) {
+            return new BitmapCounter(c);
+        } else {
+            counter.merge(c);
+            return counter;
+        }
+    }
+
+    public static BitmapCounter merge(BitmapCounter counter0, Object counter1) 
{
+        return add(counter0, counter1);
+    }
+
+    public static long result(BitmapCounter counter) {
+        return counter == null ? 0L : counter.getCount();
+    }
 }

http://git-wip-us.apache.org/repos/asf/kylin/blob/5d4982e2/core-metadata/src/main/java/org/apache/kylin/measure/bitmap/BitmapMeasureType.java
----------------------------------------------------------------------
diff --git 
a/core-metadata/src/main/java/org/apache/kylin/measure/bitmap/BitmapMeasureType.java
 
b/core-metadata/src/main/java/org/apache/kylin/measure/bitmap/BitmapMeasureType.java
index 3b0fe29..be96eb5 100644
--- 
a/core-metadata/src/main/java/org/apache/kylin/measure/bitmap/BitmapMeasureType.java
+++ 
b/core-metadata/src/main/java/org/apache/kylin/measure/bitmap/BitmapMeasureType.java
@@ -18,8 +18,11 @@
 
 package org.apache.kylin.measure.bitmap;
 
-import org.apache.kylin.common.util.ByteArray;
-import org.apache.kylin.common.util.BytesUtil;
+import java.util.Collections;
+import java.util.Iterator;
+import java.util.List;
+import java.util.Map;
+
 import org.apache.kylin.common.util.Dictionary;
 import org.apache.kylin.measure.MeasureAggregator;
 import org.apache.kylin.measure.MeasureIngester;
@@ -31,11 +34,6 @@ import org.apache.kylin.metadata.model.FunctionDesc;
 import org.apache.kylin.metadata.model.MeasureDesc;
 import org.apache.kylin.metadata.model.TblColRef;
 
-import java.util.Collections;
-import java.util.Iterator;
-import java.util.List;
-import java.util.Map;
-
 /**
  * Created by sunyerui on 15/12/10.
  */

http://git-wip-us.apache.org/repos/asf/kylin/blob/5d4982e2/core-metadata/src/main/java/org/apache/kylin/measure/bitmap/BitmapSerializer.java
----------------------------------------------------------------------
diff --git 
a/core-metadata/src/main/java/org/apache/kylin/measure/bitmap/BitmapSerializer.java
 
b/core-metadata/src/main/java/org/apache/kylin/measure/bitmap/BitmapSerializer.java
index e3ce852..089d18c 100644
--- 
a/core-metadata/src/main/java/org/apache/kylin/measure/bitmap/BitmapSerializer.java
+++ 
b/core-metadata/src/main/java/org/apache/kylin/measure/bitmap/BitmapSerializer.java
@@ -18,12 +18,12 @@
 
 package org.apache.kylin.measure.bitmap;
 
-import org.apache.kylin.metadata.datatype.DataType;
-import org.apache.kylin.metadata.datatype.DataTypeSerializer;
-
 import java.io.IOException;
 import java.nio.ByteBuffer;
 
+import org.apache.kylin.metadata.datatype.DataType;
+import org.apache.kylin.metadata.datatype.DataTypeSerializer;
+
 /**
  * Created by sunyerui on 15/12/1.
  */

http://git-wip-us.apache.org/repos/asf/kylin/blob/5d4982e2/core-metadata/src/main/java/org/apache/kylin/measure/dim/DimCountDistinctMeasureType.java
----------------------------------------------------------------------
diff --git 
a/core-metadata/src/main/java/org/apache/kylin/measure/dim/DimCountDistinctMeasureType.java
 
b/core-metadata/src/main/java/org/apache/kylin/measure/dim/DimCountDistinctMeasureType.java
index 9cd5357..7e4e529 100644
--- 
a/core-metadata/src/main/java/org/apache/kylin/measure/dim/DimCountDistinctMeasureType.java
+++ 
b/core-metadata/src/main/java/org/apache/kylin/measure/dim/DimCountDistinctMeasureType.java
@@ -23,7 +23,6 @@ import org.apache.kylin.measure.MeasureIngester;
 import org.apache.kylin.measure.MeasureType;
 import org.apache.kylin.measure.MeasureTypeFactory;
 import org.apache.kylin.metadata.datatype.DataType;
-import org.apache.kylin.metadata.datatype.DataTypeSerializer;
 import org.apache.kylin.metadata.model.MeasureDesc;
 import org.apache.kylin.metadata.realization.SQLDigest;
 
@@ -54,6 +53,7 @@ public class DimCountDistinctMeasureType extends 
MeasureType<Object> {
         }
 
     }
+
     @Override
     public MeasureIngester newIngester() {
         throw new UnsupportedOperationException("No ingester for this measure 
type.");

http://git-wip-us.apache.org/repos/asf/kylin/blob/5d4982e2/core-metadata/src/main/java/org/apache/kylin/measure/extendedcolumn/ExtendedColumnMeasureType.java
----------------------------------------------------------------------
diff --git 
a/core-metadata/src/main/java/org/apache/kylin/measure/extendedcolumn/ExtendedColumnMeasureType.java
 
b/core-metadata/src/main/java/org/apache/kylin/measure/extendedcolumn/ExtendedColumnMeasureType.java
index f0b4371..d566331 100644
--- 
a/core-metadata/src/main/java/org/apache/kylin/measure/extendedcolumn/ExtendedColumnMeasureType.java
+++ 
b/core-metadata/src/main/java/org/apache/kylin/measure/extendedcolumn/ExtendedColumnMeasureType.java
@@ -22,7 +22,6 @@ import java.util.Collection;
 import java.util.List;
 import java.util.Map;
 
-import org.apache.commons.io.Charsets;
 import org.apache.kylin.common.util.ByteArray;
 import org.apache.kylin.common.util.Bytes;
 import org.apache.kylin.common.util.Dictionary;

http://git-wip-us.apache.org/repos/asf/kylin/blob/5d4982e2/core-metadata/src/main/java/org/apache/kylin/measure/hllc/HyperLogLogPlusCounter.java
----------------------------------------------------------------------
diff --git 
a/core-metadata/src/main/java/org/apache/kylin/measure/hllc/HyperLogLogPlusCounter.java
 
b/core-metadata/src/main/java/org/apache/kylin/measure/hllc/HyperLogLogPlusCounter.java
index 823a08f..11fda52 100644
--- 
a/core-metadata/src/main/java/org/apache/kylin/measure/hllc/HyperLogLogPlusCounter.java
+++ 
b/core-metadata/src/main/java/org/apache/kylin/measure/hllc/HyperLogLogPlusCounter.java
@@ -71,7 +71,7 @@ public class HyperLogLogPlusCounter implements Serializable, 
Comparable<HyperLog
     public void clear() {
         byte zero = (byte) 0;
         if (singleBucket == -1) {
-            ;
+            //nothing
         } else if (singleBucket >= 0) {
             registers[singleBucket] = 0;
         } else {
@@ -223,7 +223,7 @@ public class HyperLogLogPlusCounter implements 
Serializable, Comparable<HyperLog
         if (scheme == 0) { // map scheme
             BytesUtil.writeVInt(size, out);
             if (singleBucket == -1) {
-                ; // no non-zero register
+                // no non-zero register
             } else if (singleBucket >= 0) {
                 writeUnsigned(singleBucket, indexLen, out);
                 out.put(registers[singleBucket]);

http://git-wip-us.apache.org/repos/asf/kylin/blob/5d4982e2/core-metadata/src/main/java/org/apache/kylin/measure/hllc/HyperLogLogPlusTable.java
----------------------------------------------------------------------
diff --git 
a/core-metadata/src/main/java/org/apache/kylin/measure/hllc/HyperLogLogPlusTable.java
 
b/core-metadata/src/main/java/org/apache/kylin/measure/hllc/HyperLogLogPlusTable.java
index d5dc863..9d8de07 100644
--- 
a/core-metadata/src/main/java/org/apache/kylin/measure/hllc/HyperLogLogPlusTable.java
+++ 
b/core-metadata/src/main/java/org/apache/kylin/measure/hllc/HyperLogLogPlusTable.java
@@ -57,8 +57,8 @@ public class HyperLogLogPlusTable {
                     4704.6222, 4731.9862, 4755.4174, 4781.2628, 4804.332, 
4832.3048, 4862.8752, 4883.4148, 4906.9544, 4935.3516, 4954.3532, 4984.0248, 
5011.217, 5035.3258, 5057.3672, 5084.1828, },
             // precision 11
             { 1477, 1501.6014, 1526.5802, 1551.7942, 1577.3042, 1603.2062, 
1629.8402, 1656.2292, 1682.9462, 1709.9926, 1737.3026, 1765.4252, 1793.0578, 
1821.6092, 1849.626, 1878.5568, 1908.527, 1937.5154, 1967.1874, 1997.3878, 
2027.37, 2058.1972, 2089.5728, 2120.1012, 2151.9668, 2183.292, 2216.0772, 
2247.8578, 2280.6562, 2313.041, 2345.714, 2380.3112, 2414.1806, 2447.9854, 
2481.656, 2516.346, 2551.5154, 2586.8378, 2621.7448, 2656.6722, 2693.5722, 
2729.1462, 2765.4124, 2802.8728, 2838.898, 2876.408, 2913.4926, 2951.4938, 
2989.6776, 3026.282, 3065.7704, 3104.1012, 3143.7388, 3181.6876, 3221.1872, 
3261.5048, 3300.0214, 3339.806, 3381.409, 3421.4144, 3461.4294, 3502.2286, 
3544.651, 3586.6156, 3627.337, 3670.083, 3711.1538, 3753.5094, 3797.01, 
3838.6686, 3882.1678, 3922.8116, 3967.9978, 4009.9204, 4054.3286, 4097.5706, 
4140.6014, 4185.544, 4229.5976, 4274.583, 4316.9438, 4361.672, 4406.2786, 
4451.8628, 4496.1834, 4543.505, 4589.1816, 4632.5188, 4678.2294, 4724.8908, 
4769.0194, 4817.052,
-                    4861.4588, 4910.1596, 4956.4344, 5002.5238, 5048.13, 
5093.6374, 5142.8162, 5187.7894, 5237.3984, 5285.6078, 5331.0858, 5379.1036, 
5428.6258, 5474.6018, 5522.7618, 5571.5822, 5618.59, 5667.9992, 5714.88, 
5763.454, 5808.6982, 5860.3644, 5910.2914, 5953.571, 6005.9232, 6055.1914, 
6104.5882, 6154.5702, 6199.7036, 6251.1764, 6298.7596, 6350.0302, 6398.061, 
6448.4694, 6495.933, 6548.0474, 6597.7166, 6646.9416, 6695.9208, 6742.6328, 
6793.5276, 6842.1934, 6894.2372, 6945.3864, 6996.9228, 7044.2372, 7094.1374, 
7142.2272, 7192.2942, 7238.8338, 7288.9006, 7344.0908, 7394.8544, 7443.5176, 
7490.4148, 7542.9314, 7595.6738, 7641.9878, 7694.3688, 7743.0448, 7797.522, 
7845.53, 7899.594, 7950.3132, 7996.455, 8050.9442, 8092.9114, 8153.1374, 
8197.4472, 8252.8278, 8301.8728, 8348.6776, 8401.4698, 8453.551, 8504.6598, 
8553.8944, 8604.1276, 8657.6514, 8710.3062, 8758.908, 8807.8706, 8862.1702, 
8910.4668, 8960.77, 9007.2766, 9063.164, 9121.0534, 9164.1354, 9218.1594, 
9267.767,
-                    9319.0594, 9372.155, 9419.7126, 9474.3722, 9520.1338, 
9572.368, 9622.7702, 9675.8448, 9726.5396, 9778.7378, 9827.6554, 9878.1922, 
9928.7782, 9978.3984, 10026.578, 10076.5626, 10137.1618, 10177.5244, 
10229.9176, },
+                    4861.4588, 4910.1596, 4956.4344, 5002.5238, 5048.13, 
5093.6374, 5142.8162, 5187.7894, 5237.3984, 5285.6078, 5331.0858, 5379.1036, 
5428.6258, 5474.6018, 5522.7618, 5571.5822, 5618.59, 5667.9992, 5714.88, 
5763.454, 5808.6982, 5860.3644, 5910.2914, 5953.571, 6005.9232, 6055.1914, 
6104.5882, 6154.5702, 6199.7036, 6251.1764, 6298.7596, 6350.0302, 6398.061, 
6448.4694, 6495.933, 6548.0474, 6597.7166, 6646.9416, 6695.9208, 6742.6328, 
6793.5276, 6842.1934, 6894.2372, 6945.3864, 6996.9228, 7044.2372, 7094.1374, 
7142.2272, 7192.2942, 7238.8338, 7288.9006, 7344.0908, 7394.8544, 7443.5176, 
7490.4148, 7542.9314, 7595.6738, 7641.9878, 7694.3688, 7743.0448, 7797.522, 
7845.53, 7899.594, 7950.3132, 7996.455, 8050.9442, 8092.9114, 8153.1374, 
8197.4472, 8252.8278, 8301.8728, 8348.6776, 8401.4698, 8453.551, 8504.6598, 
8553.8944, 8604.1276, 8657.6514, 8710.3062, 8758.908, 8807.8706, 8862.1702, 
8910.4668, 8960.77, 9007.2766, 9063.164, 9121.0534, 9164.1354, 9218.1594, 
9267.767, 9319.059
 4,
+                    9372.155, 9419.7126, 9474.3722, 9520.1338, 9572.368, 
9622.7702, 9675.8448, 9726.5396, 9778.7378, 9827.6554, 9878.1922, 9928.7782, 
9978.3984, 10026.578, 10076.5626, 10137.1618, 10177.5244, 10229.9176, },
             // precision 12
             { 2954, 3003.4782, 3053.3568, 3104.3666, 3155.324, 3206.9598, 
3259.648, 3312.539, 3366.1474, 3420.2576, 3474.8376, 3530.6076, 3586.451, 
3643.38, 3700.4104, 3757.5638, 3815.9676, 3875.193, 3934.838, 3994.8548, 
4055.018, 4117.1742, 4178.4482, 4241.1294, 4304.4776, 4367.4044, 4431.8724, 
4496.3732, 4561.4304, 4627.5326, 4693.949, 4761.5532, 4828.7256, 4897.6182, 
4965.5186, 5034.4528, 5104.865, 5174.7164, 5244.6828, 5316.6708, 5387.8312, 
5459.9036, 5532.476, 5604.8652, 5679.6718, 5753.757, 5830.2072, 5905.2828, 
5980.0434, 6056.6264, 6134.3192, 6211.5746, 6290.0816, 6367.1176, 6447.9796, 
6526.5576, 6606.1858, 6686.9144, 6766.1142, 6847.0818, 6927.9664, 7010.9096, 
7091.0816, 7175.3962, 7260.3454, 7344.018, 7426.4214, 7511.3106, 7596.0686, 
7679.8094, 7765.818, 7852.4248, 7936.834, 8022.363, 8109.5066, 8200.4554, 
8288.5832, 8373.366, 8463.4808, 8549.7682, 8642.0522, 8728.3288, 8820.9528, 
8907.727, 9001.0794, 9091.2522, 9179.988, 9269.852, 9362.6394, 9453.642, 
9546.9024, 9640.6616
 ,
                     9732.6622, 9824.3254, 9917.7484, 10007.9392, 10106.7508, 
10196.2152, 10289.8114, 10383.5494, 10482.3064, 10576.8734, 10668.7872, 
10764.7156, 10862.0196, 10952.793, 11049.9748, 11146.0702, 11241.4492, 
11339.2772, 11434.2336, 11530.741, 11627.6136, 11726.311, 11821.5964, 
11918.837, 12015.3724, 12113.0162, 12213.0424, 12306.9804, 12408.4518, 
12504.8968, 12604.586, 12700.9332, 12798.705, 12898.5142, 12997.0488, 
13094.788, 13198.475, 13292.7764, 13392.9698, 13486.8574, 13590.1616, 
13686.5838, 13783.6264, 13887.2638, 13992.0978, 14081.0844, 14189.9956, 
14280.0912, 14382.4956, 14486.4384, 14588.1082, 14686.2392, 14782.276, 
14888.0284, 14985.1864, 15088.8596, 15187.0998, 15285.027, 15383.6694, 
15495.8266, 15591.3736, 15694.2008, 15790.3246, 15898.4116, 15997.4522, 
16095.5014, 16198.8514, 16291.7492, 16402.6424, 16499.1266, 16606.2436, 
16697.7186, 16796.3946, 16902.3376, 17005.7672, 17100.814, 17206.8282, 
17305.8262, 17416.0744, 17508.4092, 17617.0178, 17715.4554,
@@ -113,17 +113,17 @@ public class HyperLogLogPlusTable {
                     36.2146, 36.6684, 35.9946, 33.123, 33.4338, 
31.7378000000001, 29.076, 28.9692, 27.4964, 27.0998, 25.9864, 26.7754, 24.3208, 
23.4838, 22.7388000000001, 24.0758000000001, 21.9097999999999, 20.9728, 
19.9228000000001, 19.9292, 16.617, 17.05, 18.2996000000001, 15.6128000000001, 
15.7392, 14.5174, 13.6322, 12.2583999999999, 13.3766000000001, 11.423, 13.1232, 
9.51639999999998, 10.5938000000001, 9.59719999999993, 8.12220000000002, 
9.76739999999995, 7.50440000000003, 7.56999999999994, 6.70440000000008, 
6.41419999999994, 6.71019999999999, 5.60940000000005, 4.65219999999999, 
6.84099999999989, 3.4072000000001, 3.97859999999991, 3.32760000000007, 
5.52160000000003, 3.31860000000006, 2.06940000000009, 4.35400000000004, 
1.57500000000005, 0.280799999999999, 2.12879999999996, -0.214799999999968, 
-0.0378000000000611, -0.658200000000079, 0.654800000000023, 
-0.0697999999999865, 0.858400000000074, -2.52700000000004, -2.1751999999999, 
-3.35539999999992, -1.04019999999991,
                     -0.651000000000067, -2.14439999999991, -1.96659999999997, 
-3.97939999999994, -0.604400000000169, -3.08260000000018, -3.39159999999993, 
-5.29640000000018, -5.38920000000007, -5.08759999999984, -4.69900000000007, 
-5.23720000000003, -3.15779999999995, -4.97879999999986, -4.89899999999989, 
-7.48880000000008, -5.94799999999987, -5.68060000000014, -6.67180000000008, 
-4.70499999999993, -7.27779999999984, -4.6579999999999, -4.4362000000001, 
-4.32139999999981, -5.18859999999995, -6.66879999999992, -6.48399999999992, 
-5.1260000000002, -4.4032000000002, -6.13500000000022, -5.80819999999994, 
-4.16719999999987, -4.15039999999999, -7.45600000000013, -7.24080000000004, 
-9.83179999999993, -5.80420000000004, -8.6561999999999, -6.99940000000015, 
-10.5473999999999, -7.34139999999979, -6.80999999999995, -6.29719999999998, 
-6.23199999999997, },
             // precision 10
-            { 737.1256, 724.4234, 711.1064, 698.4732, 685.4636, 673.0644, 
660.488, 647.9654, 636.0832, 623.7864, 612.1992, 600.2176, 588.5228, 577.1716, 
565.7752, 554.899, 543.6126, 532.6492, 521.9474, 511.5214, 501.1064, 490.6364, 
480.2468, 470.4588, 460.3832, 451.0584, 440.8606, 431.3868, 422.5062, 413.1862, 
404.463, 395.339, 386.1936, 378.1292, 369.1854, 361.2908, 353.3324, 344.8518, 
337.5204, 329.4854, 321.9318, 314.552, 306.4658, 299.4256, 292.849, 286.152, 
278.8956, 271.8792, 265.118, 258.62, 252.5132, 245.9322, 239.7726, 233.6086, 
227.5332, 222.5918, 216.4294, 210.7662, 205.4106, 199.7338, 194.9012, 188.4486, 
183.1556, 178.6338, 173.7312, 169.6264, 163.9526, 159.8742, 155.8326, 151.1966, 
147.5594, 143.07, 140.037, 134.1804, 131.071, 127.4884, 124.0848, 120.2944, 
117.333, 112.9626, 110.2902, 107.0814, 103.0334, 99.4832000000001, 
96.3899999999999, 93.7202000000002, 90.1714000000002, 87.2357999999999, 
85.9346, 82.8910000000001, 80.0264000000002, 78.3834000000002,
-                    75.1543999999999, 73.8683999999998, 70.9895999999999, 
69.4367999999999, 64.8701999999998, 65.0408000000002, 61.6738, 
59.5207999999998, 57.0158000000001, 54.2302, 53.0962, 50.4985999999999, 
52.2588000000001, 47.3914, 45.6244000000002, 42.8377999999998, 43.0072, 
40.6516000000001, 40.2453999999998, 35.2136, 36.4546, 33.7849999999999, 
33.2294000000002, 32.4679999999998, 30.8670000000002, 28.6507999999999, 
28.9099999999999, 27.5983999999999, 26.1619999999998, 24.5563999999999, 
23.2328000000002, 21.9484000000002, 21.5902000000001, 21.3346000000001, 
17.7031999999999, 20.6111999999998, 19.5545999999999, 15.7375999999999, 
17.0720000000001, 16.9517999999998, 15.326, 13.1817999999998, 14.6925999999999, 
13.0859999999998, 13.2754, 10.8697999999999, 11.248, 7.3768, 4.72339999999986, 
7.97899999999981, 8.7503999999999, 7.68119999999999, 9.7199999999998, 
7.73919999999998, 5.6224000000002, 7.44560000000001, 6.6601999999998, 5.9058, 
4.00199999999995, 4.51699999999983,
-                    4.68240000000014, 3.86220000000003, 5.13639999999987, 
5.98500000000013, 2.47719999999981, 2.61999999999989, 1.62800000000016, 
4.65000000000009, 0.225599999999758, 0.831000000000131, -0.359400000000278, 
1.27599999999984, -2.92559999999958, -0.0303999999996449, 2.37079999999969, 
-2.0033999999996, 0.804600000000391, 0.30199999999968, 1.1247999999996, 
-2.6880000000001, 0.0321999999996478, -1.18099999999959, -3.9402, 
-1.47940000000017, -0.188400000000001, -2.10720000000038, -2.04159999999956, 
-3.12880000000041, -4.16160000000036, -0.612799999999879, -3.48719999999958, 
-8.17900000000009, -5.37780000000021, -4.01379999999972, -5.58259999999973, 
-5.73719999999958, -7.66799999999967, -5.69520000000011, -1.1247999999996, 
-5.58520000000044, -8.04560000000038, -4.64840000000004, -11.6468000000004, 
-7.97519999999986, -5.78300000000036, -7.67420000000038, -10.6328000000003, 
-9.81720000000041, },
+            { 737.1256, 724.4234, 711.1064, 698.4732, 685.4636, 673.0644, 
660.488, 647.9654, 636.0832, 623.7864, 612.1992, 600.2176, 588.5228, 577.1716, 
565.7752, 554.899, 543.6126, 532.6492, 521.9474, 511.5214, 501.1064, 490.6364, 
480.2468, 470.4588, 460.3832, 451.0584, 440.8606, 431.3868, 422.5062, 413.1862, 
404.463, 395.339, 386.1936, 378.1292, 369.1854, 361.2908, 353.3324, 344.8518, 
337.5204, 329.4854, 321.9318, 314.552, 306.4658, 299.4256, 292.849, 286.152, 
278.8956, 271.8792, 265.118, 258.62, 252.5132, 245.9322, 239.7726, 233.6086, 
227.5332, 222.5918, 216.4294, 210.7662, 205.4106, 199.7338, 194.9012, 188.4486, 
183.1556, 178.6338, 173.7312, 169.6264, 163.9526, 159.8742, 155.8326, 151.1966, 
147.5594, 143.07, 140.037, 134.1804, 131.071, 127.4884, 124.0848, 120.2944, 
117.333, 112.9626, 110.2902, 107.0814, 103.0334, 99.4832000000001, 
96.3899999999999, 93.7202000000002, 90.1714000000002, 87.2357999999999, 
85.9346, 82.8910000000001, 80.0264000000002, 78.3834000000002, 75.154399999999
 9,
+                    73.8683999999998, 70.9895999999999, 69.4367999999999, 
64.8701999999998, 65.0408000000002, 61.6738, 59.5207999999998, 
57.0158000000001, 54.2302, 53.0962, 50.4985999999999, 52.2588000000001, 
47.3914, 45.6244000000002, 42.8377999999998, 43.0072, 40.6516000000001, 
40.2453999999998, 35.2136, 36.4546, 33.7849999999999, 33.2294000000002, 
32.4679999999998, 30.8670000000002, 28.6507999999999, 28.9099999999999, 
27.5983999999999, 26.1619999999998, 24.5563999999999, 23.2328000000002, 
21.9484000000002, 21.5902000000001, 21.3346000000001, 17.7031999999999, 
20.6111999999998, 19.5545999999999, 15.7375999999999, 17.0720000000001, 
16.9517999999998, 15.326, 13.1817999999998, 14.6925999999999, 13.0859999999998, 
13.2754, 10.8697999999999, 11.248, 7.3768, 4.72339999999986, 7.97899999999981, 
8.7503999999999, 7.68119999999999, 9.7199999999998, 7.73919999999998, 
5.6224000000002, 7.44560000000001, 6.6601999999998, 5.9058, 4.00199999999995, 
4.51699999999983, 4.68240000000014,
+                    3.86220000000003, 5.13639999999987, 5.98500000000013, 
2.47719999999981, 2.61999999999989, 1.62800000000016, 4.65000000000009, 
0.225599999999758, 0.831000000000131, -0.359400000000278, 1.27599999999984, 
-2.92559999999958, -0.0303999999996449, 2.37079999999969, -2.0033999999996, 
0.804600000000391, 0.30199999999968, 1.1247999999996, -2.6880000000001, 
0.0321999999996478, -1.18099999999959, -3.9402, -1.47940000000017, 
-0.188400000000001, -2.10720000000038, -2.04159999999956, -3.12880000000041, 
-4.16160000000036, -0.612799999999879, -3.48719999999958, -8.17900000000009, 
-5.37780000000021, -4.01379999999972, -5.58259999999973, -5.73719999999958, 
-7.66799999999967, -5.69520000000011, -1.1247999999996, -5.58520000000044, 
-8.04560000000038, -4.64840000000004, -11.6468000000004, -7.97519999999986, 
-5.78300000000036, -7.67420000000038, -10.6328000000003, -9.81720000000041, },
             // precision 11
             { 1476, 1449.6014, 1423.5802, 1397.7942, 1372.3042, 1347.2062, 
1321.8402, 1297.2292, 1272.9462, 1248.9926, 1225.3026, 1201.4252, 1178.0578, 
1155.6092, 1132.626, 1110.5568, 1088.527, 1066.5154, 1045.1874, 1024.3878, 
1003.37, 982.1972, 962.5728, 942.1012, 922.9668, 903.292, 884.0772, 864.8578, 
846.6562, 828.041, 809.714, 792.3112, 775.1806, 757.9854, 740.656, 724.346, 
707.5154, 691.8378, 675.7448, 659.6722, 645.5722, 630.1462, 614.4124, 600.8728, 
585.898, 572.408, 558.4926, 544.4938, 531.6776, 517.282, 505.7704, 493.1012, 
480.7388, 467.6876, 456.1872, 445.5048, 433.0214, 420.806, 411.409, 400.4144, 
389.4294, 379.2286, 369.651, 360.6156, 350.337, 342.083, 332.1538, 322.5094, 
315.01, 305.6686, 298.1678, 287.8116, 280.9978, 271.9204, 265.3286, 257.5706, 
249.6014, 242.544, 235.5976, 229.583, 220.9438, 214.672, 208.2786, 201.8628, 
195.1834, 191.505, 186.1816, 178.5188, 172.2294, 167.8908, 161.0194, 158.052, 
151.4588, 148.1596, 143.4344, 138.5238, 133.13, 127.6374, 124.8162,
                     118.7894, 117.3984, 114.6078, 109.0858, 105.1036, 
103.6258, 98.6018000000004, 95.7618000000002, 93.5821999999998, 
88.5900000000001, 86.9992000000002, 82.8800000000001, 80.4539999999997, 
74.6981999999998, 74.3644000000004, 73.2914000000001, 65.5709999999999, 
66.9232000000002, 65.1913999999997, 62.5882000000001, 61.5702000000001, 
55.7035999999998, 56.1764000000003, 52.7596000000003, 53.0302000000001, 
49.0609999999997, 48.4694, 44.933, 46.0474000000004, 44.7165999999997, 
41.9416000000001, 39.9207999999999, 35.6328000000003, 35.5276000000003, 
33.1934000000001, 33.2371999999996, 33.3864000000003, 33.9228000000003, 
30.2371999999996, 29.1373999999996, 25.2272000000003, 24.2942000000003, 
19.8338000000003, 18.9005999999999, 23.0907999999999, 21.8544000000002, 
19.5176000000001, 15.4147999999996, 16.9314000000004, 18.6737999999996, 
12.9877999999999, 14.3688000000002, 12.0447999999997, 15.5219999999999, 
12.5299999999997, 14.5940000000001, 14.3131999999996, 9.45499999999993,
                     12.9441999999999, 3.91139999999996, 13.1373999999996, 
5.44720000000052, 9.82779999999912, 7.87279999999919, 3.67760000000089, 
5.46980000000076, 5.55099999999948, 5.65979999999945, 3.89439999999922, 
3.1275999999998, 5.65140000000065, 6.3062000000009, 3.90799999999945, 
1.87060000000019, 5.17020000000048, 2.46680000000015, 0.770000000000437, 
-3.72340000000077, 1.16400000000067, 8.05340000000069, 0.135399999999208, 
2.15940000000046, 0.766999999999825, 1.0594000000001, 3.15500000000065, 
-0.287399999999252, 2.37219999999979, -2.86620000000039, -1.63199999999961, 
-2.22979999999916, -0.15519999999924, -1.46039999999994, -0.262199999999211, 
-2.34460000000036, -2.8078000000005, -3.22179999999935, -5.60159999999996, 
-8.42200000000048, -9.43740000000071, 0.161799999999857, -10.4755999999998, 
-10.0823999999993, },
             // precision 12
             { 2953, 2900.4782, 2848.3568, 2796.3666, 2745.324, 2694.9598, 
2644.648, 2595.539, 2546.1474, 2498.2576, 2450.8376, 2403.6076, 2357.451, 
2311.38, 2266.4104, 2221.5638, 2176.9676, 2134.193, 2090.838, 2048.8548, 
2007.018, 1966.1742, 1925.4482, 1885.1294, 1846.4776, 1807.4044, 1768.8724, 
1731.3732, 1693.4304, 1657.5326, 1621.949, 1586.5532, 1551.7256, 1517.6182, 
1483.5186, 1450.4528, 1417.865, 1385.7164, 1352.6828, 1322.6708, 1291.8312, 
1260.9036, 1231.476, 1201.8652, 1173.6718, 1145.757, 1119.2072, 1092.2828, 
1065.0434, 1038.6264, 1014.3192, 988.5746, 965.0816, 940.1176, 917.9796, 
894.5576, 871.1858, 849.9144, 827.1142, 805.0818, 783.9664, 763.9096, 742.0816, 
724.3962, 706.3454, 688.018, 667.4214, 650.3106, 633.0686, 613.8094, 597.818, 
581.4248, 563.834, 547.363, 531.5066, 520.455400000001, 505.583199999999, 
488.366, 476.480799999999, 459.7682, 450.0522, 434.328799999999, 
423.952799999999, 408.727000000001, 399.079400000001, 387.252200000001, 
373.987999999999,
-                    360.852000000001, 351.6394, 339.642, 330.902400000001, 
322.661599999999, 311.662200000001, 301.3254, 291.7484, 279.939200000001, 
276.7508, 263.215200000001, 254.811400000001, 245.5494, 242.306399999999, 
234.8734, 223.787200000001, 217.7156, 212.0196, 200.793, 195.9748, 189.0702, 
182.449199999999, 177.2772, 170.2336, 164.741, 158.613600000001, 155.311, 
147.5964, 142.837, 137.3724, 132.0162, 130.0424, 121.9804, 120.451800000001, 
114.8968, 111.585999999999, 105.933199999999, 101.705, 98.5141999999996, 
95.0488000000005, 89.7880000000005, 91.4750000000004, 83.7764000000006, 
80.9698000000008, 72.8574000000008, 73.1615999999995, 67.5838000000003, 
62.6263999999992, 63.2638000000006, 66.0977999999996, 52.0843999999997, 
58.9956000000002, 47.0912000000008, 46.4956000000002, 48.4383999999991, 
47.1082000000006, 43.2392, 37.2759999999998, 40.0283999999992, 
35.1864000000005, 35.8595999999998, 32.0998, 28.027, 23.6694000000007, 
33.8266000000003, 26.3736000000008,
-                    27.2008000000005, 21.3245999999999, 26.4115999999995, 
23.4521999999997, 19.5013999999992, 19.8513999999996, 10.7492000000002, 
18.6424000000006, 13.1265999999996, 18.2436000000016, 6.71860000000015, 
3.39459999999963, 6.33759999999893, 7.76719999999841, 0.813999999998487, 
3.82819999999992, 0.826199999999517, 8.07440000000133, -1.59080000000176, 
5.01780000000144, 0.455399999998917, -0.24199999999837, 0.174800000000687, 
-9.07640000000174, -4.20160000000033, -3.77520000000004, -4.75179999999818, 
-5.3724000000002, -8.90680000000066, -6.10239999999976, -5.74120000000039, 
-9.95339999999851, -3.86339999999836, -13.7304000000004, -16.2710000000006, 
-7.51359999999841, -3.30679999999847, -13.1339999999982, -10.0551999999989, 
-6.72019999999975, -8.59660000000076, -10.9307999999983, -1.8775999999998, 
-4.82259999999951, -13.7788, -21.6470000000008, -10.6735999999983, 
-15.7799999999988, },
+                    360.852000000001, 351.6394, 339.642, 330.902400000001, 
322.661599999999, 311.662200000001, 301.3254, 291.7484, 279.939200000001, 
276.7508, 263.215200000001, 254.811400000001, 245.5494, 242.306399999999, 
234.8734, 223.787200000001, 217.7156, 212.0196, 200.793, 195.9748, 189.0702, 
182.449199999999, 177.2772, 170.2336, 164.741, 158.613600000001, 155.311, 
147.5964, 142.837, 137.3724, 132.0162, 130.0424, 121.9804, 120.451800000001, 
114.8968, 111.585999999999, 105.933199999999, 101.705, 98.5141999999996, 
95.0488000000005, 89.7880000000005, 91.4750000000004, 83.7764000000006, 
80.9698000000008, 72.8574000000008, 73.1615999999995, 67.5838000000003, 
62.6263999999992, 63.2638000000006, 66.0977999999996, 52.0843999999997, 
58.9956000000002, 47.0912000000008, 46.4956000000002, 48.4383999999991, 
47.1082000000006, 43.2392, 37.2759999999998, 40.0283999999992, 
35.1864000000005, 35.8595999999998, 32.0998, 28.027, 23.6694000000007, 
33.8266000000003, 26.3736000000008, 27.200800000000
 5,
+                    21.3245999999999, 26.4115999999995, 23.4521999999997, 
19.5013999999992, 19.8513999999996, 10.7492000000002, 18.6424000000006, 
13.1265999999996, 18.2436000000016, 6.71860000000015, 3.39459999999963, 
6.33759999999893, 7.76719999999841, 0.813999999998487, 3.82819999999992, 
0.826199999999517, 8.07440000000133, -1.59080000000176, 5.01780000000144, 
0.455399999998917, -0.24199999999837, 0.174800000000687, -9.07640000000174, 
-4.20160000000033, -3.77520000000004, -4.75179999999818, -5.3724000000002, 
-8.90680000000066, -6.10239999999976, -5.74120000000039, -9.95339999999851, 
-3.86339999999836, -13.7304000000004, -16.2710000000006, -7.51359999999841, 
-3.30679999999847, -13.1339999999982, -10.0551999999989, -6.72019999999975, 
-8.59660000000076, -10.9307999999983, -1.8775999999998, -4.82259999999951, 
-13.7788, -21.6470000000008, -10.6735999999983, -15.7799999999988, },
             // precision 13
             { 5907.5052, 5802.2672, 5697.347, 5593.5794, 5491.2622, 5390.5514, 
5290.3376, 5191.6952, 5093.5988, 4997.3552, 4902.5972, 4808.3082, 4715.5646, 
4624.109, 4533.8216, 4444.4344, 4356.3802, 4269.2962, 4183.3784, 4098.292, 
4014.79, 3932.4574, 3850.6036, 3771.2712, 3691.7708, 3615.099, 3538.1858, 
3463.4746, 3388.8496, 3315.6794, 3244.5448, 3173.7516, 3103.3106, 3033.6094, 
2966.5642, 2900.794, 2833.7256, 2769.81, 2707.3196, 2644.0778, 2583.9916, 
2523.4662, 2464.124, 2406.073, 2347.0362, 2292.1006, 2238.1716, 2182.7514, 
2128.4884, 2077.1314, 2025.037, 1975.3756, 1928.933, 1879.311, 1831.0006, 
1783.2144, 1738.3096, 1694.5144, 1649.024, 1606.847, 1564.7528, 1525.3168, 
1482.5372, 1443.9668, 1406.5074, 1365.867, 1329.2186, 1295.4186, 1257.9716, 
1225.339, 1193.2972, 1156.3578, 1125.8686, 1091.187, 1061.4094, 1029.4188, 
1000.9126, 972.3272, 944.004199999999, 915.7592, 889.965, 862.834200000001, 
840.4254, 812.598399999999, 785.924200000001, 763.050999999999, 
741.793799999999, 721.466,
                     699.040799999999, 677.997200000002, 649.866999999998, 
634.911800000002, 609.8694, 591.981599999999, 570.2922, 557.129199999999, 
538.3858, 521.872599999999, 502.951400000002, 495.776399999999, 
475.171399999999, 459.751, 439.995200000001, 426.708999999999, 413.7016, 
402.3868, 387.262599999998, 372.0524, 357.050999999999, 342.5098, 
334.849200000001, 322.529399999999, 311.613799999999, 295.848000000002, 
289.273000000001, 274.093000000001, 263.329600000001, 251.389599999999, 
245.7392, 231.9614, 229.7952, 217.155200000001, 208.9588, 199.016599999999, 
190.839199999999, 180.6976, 176.272799999999, 166.976999999999, 162.5252, 
151.196400000001, 149.386999999999, 133.981199999998, 130.0586, 
130.164000000001, 122.053400000001, 110.7428, 108.1276, 106.232400000001, 
100.381600000001, 98.7668000000012, 86.6440000000002, 79.9768000000004, 
82.4722000000002, 68.7026000000005, 70.1186000000016, 71.9948000000004, 
58.998599999999, 59.0492000000013, 56.9818000000014, 47.5338000000011,

http://git-wip-us.apache.org/repos/asf/kylin/blob/5d4982e2/core-metadata/src/main/java/org/apache/kylin/measure/raw/RawAggregator.java
----------------------------------------------------------------------
diff --git 
a/core-metadata/src/main/java/org/apache/kylin/measure/raw/RawAggregator.java 
b/core-metadata/src/main/java/org/apache/kylin/measure/raw/RawAggregator.java
index 42b41ed..6f66269 100644
--- 
a/core-metadata/src/main/java/org/apache/kylin/measure/raw/RawAggregator.java
+++ 
b/core-metadata/src/main/java/org/apache/kylin/measure/raw/RawAggregator.java
@@ -18,12 +18,12 @@
 
 package org.apache.kylin.measure.raw;
 
-import org.apache.kylin.common.util.ByteArray;
-import org.apache.kylin.measure.MeasureAggregator;
-
 import java.util.ArrayList;
 import java.util.List;
 
+import org.apache.kylin.common.util.ByteArray;
+import org.apache.kylin.measure.MeasureAggregator;
+
 /**
  * RAW data Aggregator
  */
@@ -38,7 +38,7 @@ public class RawAggregator extends 
MeasureAggregator<List<ByteArray>> {
 
     @Override
     public void aggregate(List<ByteArray> value) {
-        if(value != null) {
+        if (value != null) {
             if (list == null) {
                 list = new ArrayList<>(value.size());
             }
@@ -54,7 +54,7 @@ public class RawAggregator extends 
MeasureAggregator<List<ByteArray>> {
     @Override
     public int getMemBytesEstimate() {
         int bytes = 0;
-        if(list != null) {
+        if (list != null) {
             for (ByteArray array : list) {
                 bytes += array.length() + 1;
             }

http://git-wip-us.apache.org/repos/asf/kylin/blob/5d4982e2/core-metadata/src/main/java/org/apache/kylin/measure/raw/RawMeasureType.java
----------------------------------------------------------------------
diff --git 
a/core-metadata/src/main/java/org/apache/kylin/measure/raw/RawMeasureType.java 
b/core-metadata/src/main/java/org/apache/kylin/measure/raw/RawMeasureType.java
index 93fbce3..aa46149 100644
--- 
a/core-metadata/src/main/java/org/apache/kylin/measure/raw/RawMeasureType.java
+++ 
b/core-metadata/src/main/java/org/apache/kylin/measure/raw/RawMeasureType.java
@@ -18,6 +18,13 @@
 
 package org.apache.kylin.measure.raw;
 
+import java.util.ArrayList;
+import java.util.Collection;
+import java.util.Collections;
+import java.util.Iterator;
+import java.util.List;
+import java.util.Map;
+
 import org.apache.kylin.common.util.ByteArray;
 import org.apache.kylin.common.util.BytesUtil;
 import org.apache.kylin.common.util.Dictionary;
@@ -38,8 +45,6 @@ import org.apache.kylin.metadata.tuple.TupleInfo;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
-import java.util.*;
-
 public class RawMeasureType extends MeasureType<List<ByteArray>> {
 
     private static final Logger logger = 
LoggerFactory.getLogger(RawMeasureType.class);
@@ -172,7 +177,7 @@ public class RawMeasureType extends 
MeasureType<List<ByteArray>> {
         unmatchedAggregations.remove(measureDesc.getFunction());
 
         //contain one raw measure : cost * 0.9
-        return new CapabilityResult.CapabilityInfluence(){
+        return new CapabilityResult.CapabilityInfluence() {
             @Override
             public double suggestCostMultiplier() {
                 return 0.9;

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