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The following commit(s) were added to refs/heads/master by this push:
     new b1c8089  ARROW-1869: [JAVA] Fix LowCostIdentityHashMap name
b1c8089 is described below

commit b1c8089abb96d210101c1f363a21b15cac324026
Author: Ivan Sadikov <[email protected]>
AuthorDate: Wed Nov 29 10:54:43 2017 -0500

    ARROW-1869: [JAVA] Fix LowCostIdentityHashMap name
    
    JIRA: https://issues.apache.org/jira/browse/ARROW-1869
    
    This PR fixes spelling error in class name for `LowCostIdentityHashMap`.
    Follow-up for https://github.com/apache/arrow/pull/1150.
    
    Author: Ivan Sadikov <[email protected]>
    
    Closes #1372 from sadikovi/fix-low-cost-identity-hash-map and squashes the 
following commits:
    
    e3529f68 [Ivan Sadikov] fix low cost identity hash map name
---
 .../main/java/org/apache/arrow/memory/AllocationManager.java   |  2 +-
 ...{LowCostIdentityHasMap.java => LowCostIdentityHashMap.java} | 10 +++++-----
 ...CostIdentityHasMap.java => TestLowCostIdentityHashMap.java} |  6 +++---
 3 files changed, 9 insertions(+), 9 deletions(-)

diff --git 
a/java/memory/src/main/java/org/apache/arrow/memory/AllocationManager.java 
b/java/memory/src/main/java/org/apache/arrow/memory/AllocationManager.java
index 14687b5..419be34 100644
--- a/java/memory/src/main/java/org/apache/arrow/memory/AllocationManager.java
+++ b/java/memory/src/main/java/org/apache/arrow/memory/AllocationManager.java
@@ -76,7 +76,7 @@ public class AllocationManager {
   private final UnsafeDirectLittleEndian underlying;
   // ARROW-1627 Trying to minimize memory overhead caused by previously used 
IdentityHashMap
   // see JIRA for details
-  private final LowCostIdentityHasMap<BaseAllocator, BufferLedger> map = new 
LowCostIdentityHasMap<>();
+  private final LowCostIdentityHashMap<BaseAllocator, BufferLedger> map = new 
LowCostIdentityHashMap<>();
   private final ReadWriteLock lock = new ReentrantReadWriteLock();
   private final AutoCloseableLock readLock = new 
AutoCloseableLock(lock.readLock());
   private final AutoCloseableLock writeLock = new 
AutoCloseableLock(lock.writeLock());
diff --git 
a/java/memory/src/main/java/org/apache/arrow/memory/LowCostIdentityHasMap.java 
b/java/memory/src/main/java/org/apache/arrow/memory/LowCostIdentityHashMap.java
similarity index 98%
rename from 
java/memory/src/main/java/org/apache/arrow/memory/LowCostIdentityHasMap.java
rename to 
java/memory/src/main/java/org/apache/arrow/memory/LowCostIdentityHashMap.java
index 1153fb5..fb70338 100644
--- 
a/java/memory/src/main/java/org/apache/arrow/memory/LowCostIdentityHasMap.java
+++ 
b/java/memory/src/main/java/org/apache/arrow/memory/LowCostIdentityHashMap.java
@@ -28,7 +28,7 @@ import com.google.common.base.Preconditions;
  * that provides "getKey" method
  * @param <V>
  */
-public class LowCostIdentityHasMap<K, V extends ValueWithKeyIncluded<K>> {
+public class LowCostIdentityHashMap<K, V extends ValueWithKeyIncluded<K>> {
 
   /*
    * The internal data structure to hold values.
@@ -52,7 +52,7 @@ public class LowCostIdentityHasMap<K, V extends 
ValueWithKeyIncluded<K>> {
   /**
    * Creates an Map with default expected maximum size.
    */
-  public LowCostIdentityHasMap() {
+  public LowCostIdentityHashMap() {
     this(DEFAULT_MIN_SIZE);
   }
 
@@ -63,7 +63,7 @@ public class LowCostIdentityHasMap<K, V extends 
ValueWithKeyIncluded<K>> {
    *            The estimated maximum number of entries that will be put in
    *            this map.
    */
-  public LowCostIdentityHasMap(int maxSize) {
+  public LowCostIdentityHashMap(int maxSize) {
     if (maxSize >= 0) {
       this.size = 0;
       threshold = getThreshold(maxSize);
@@ -96,7 +96,7 @@ public class LowCostIdentityHasMap<K, V extends 
ValueWithKeyIncluded<K>> {
   private Object[] newElementArray(int s) {
     return new Object[s];
   }
-  
+
   /**
    * Removes all elements from this map, leaving it empty.
    *
@@ -331,4 +331,4 @@ public class LowCostIdentityHasMap<K, V extends 
ValueWithKeyIncluded<K>> {
     }
     return null;
   }
-}
\ No newline at end of file
+}
diff --git 
a/java/memory/src/test/java/org/apache/arrow/memory/TestLowCostIdentityHasMap.java
 
b/java/memory/src/test/java/org/apache/arrow/memory/TestLowCostIdentityHashMap.java
similarity index 95%
rename from 
java/memory/src/test/java/org/apache/arrow/memory/TestLowCostIdentityHasMap.java
rename to 
java/memory/src/test/java/org/apache/arrow/memory/TestLowCostIdentityHashMap.java
index c119614..0237b38 100644
--- 
a/java/memory/src/test/java/org/apache/arrow/memory/TestLowCostIdentityHasMap.java
+++ 
b/java/memory/src/test/java/org/apache/arrow/memory/TestLowCostIdentityHashMap.java
@@ -27,11 +27,11 @@ import org.junit.Test;
 /**
  * To test simplified implementation of IdentityHashMap
  */
-public class TestLowCostIdentityHasMap {
+public class TestLowCostIdentityHashMap {
 
   @Test
   public void testIdentityHashMap() throws Exception {
-    LowCostIdentityHasMap<String, StringWithKey> hashMap = new 
LowCostIdentityHasMap<>();
+    LowCostIdentityHashMap<String, StringWithKey> hashMap = new 
LowCostIdentityHashMap<>();
 
     StringWithKey obj1 = new StringWithKey("s1key", "s1value");
     StringWithKey obj2 = new StringWithKey("s2key", "s2value");
@@ -88,7 +88,7 @@ public class TestLowCostIdentityHasMap {
 
   @Test
   public void testLargeMap() throws Exception {
-    LowCostIdentityHasMap<String, StringWithKey> hashMap = new 
LowCostIdentityHasMap<>();
+    LowCostIdentityHashMap<String, StringWithKey> hashMap = new 
LowCostIdentityHashMap<>();
 
     String [] keys = new String[200];
     for (int i = 0; i < 200; i++) {

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