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apurtell pushed a commit to branch branch-2.5
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The following commit(s) were added to refs/heads/branch-2.5 by this push:
new f7ffeac554f HBASE-27235 Clean up error-prone warnings in
hbase-hadoop-compat (#4648)
f7ffeac554f is described below
commit f7ffeac554fbb246e5cd6988ef991d1b632d4745
Author: Andrew Purtell <[email protected]>
AuthorDate: Mon Jul 25 17:30:15 2022 -0700
HBASE-27235 Clean up error-prone warnings in hbase-hadoop-compat (#4648)
Signed-off-by: Duo Zhang <[email protected]>
---
.../apache/hadoop/hbase/CompatibilitySingletonFactory.java | 2 ++
.../hadoop/hbase/regionserver/MetricsRegionWrapper.java | 12 ++++++------
.../src/test/java/org/apache/hadoop/hbase/HadoopShims.java | 1 +
.../hadoop/hbase/TestCompatibilitySingletonFactory.java | 2 +-
.../hbase/ipc/MetricsHBaseServerSourceFactoryImpl.java | 4 +++-
.../main/java/org/apache/hadoop/hbase/mapreduce/JobUtil.java | 3 ---
.../hbase/master/MetricsAssignmentManagerSourceImpl.java | 1 +
.../hadoop/hbase/master/MetricsMasterSourceFactoryImpl.java | 4 +++-
.../master/balancer/MetricsStochasticBalancerSourceImpl.java | 1 +
.../java/org/apache/hadoop/hbase/metrics/BaseSourceImpl.java | 11 +++++++++++
.../main/java/org/apache/hadoop/hbase/metrics/Interns.java | 2 ++
.../hbase/regionserver/MetricsRegionAggregateSourceImpl.java | 1 +
.../regionserver/MetricsRegionServerSourceFactoryImpl.java | 6 +++++-
.../hbase/regionserver/MetricsTableAggregateSourceImpl.java | 4 ----
.../hadoop/hbase/regionserver/MetricsTableSourceImpl.java | 12 +++++++-----
.../hadoop/hbase/regionserver/MetricsUserSourceImpl.java | 2 --
.../regionserver/MetricsReplicationSourceFactoryImpl.java | 3 ++-
.../hbase/thrift/MetricsThriftServerSourceFactoryImpl.java | 5 +++--
.../hadoop/hbase/zookeeper/MetricsZooKeeperSourceImpl.java | 1 +
.../hadoop/metrics2/lib/DefaultMetricsSystemHelper.java | 1 +
.../apache/hadoop/metrics2/lib/DynamicMetricsRegistry.java | 3 ---
.../org/apache/hadoop/metrics2/lib/MetricsExecutorImpl.java | 1 +
.../org/apache/hadoop/metrics2/lib/MutableHistogram.java | 1 +
.../apache/hadoop/metrics2/util/MetricSampleQuantiles.java | 1 +
.../test/java/org/apache/hadoop/hbase/HadoopShimsImpl.java | 2 +-
25 files changed, 55 insertions(+), 31 deletions(-)
diff --git
a/hbase-hadoop-compat/src/main/java/org/apache/hadoop/hbase/CompatibilitySingletonFactory.java
b/hbase-hadoop-compat/src/main/java/org/apache/hadoop/hbase/CompatibilitySingletonFactory.java
index ccd4d4f97ad..ee9eb14a790 100644
---
a/hbase-hadoop-compat/src/main/java/org/apache/hadoop/hbase/CompatibilitySingletonFactory.java
+++
b/hbase-hadoop-compat/src/main/java/org/apache/hadoop/hbase/CompatibilitySingletonFactory.java
@@ -31,6 +31,8 @@ import org.slf4j.LoggerFactory;
*/
@InterfaceAudience.Private
public class CompatibilitySingletonFactory extends CompatibilityFactory {
+
+ @SuppressWarnings("ImmutableEnumChecker")
public static enum SingletonStorage {
INSTANCE;
diff --git
a/hbase-hadoop-compat/src/main/java/org/apache/hadoop/hbase/regionserver/MetricsRegionWrapper.java
b/hbase-hadoop-compat/src/main/java/org/apache/hadoop/hbase/regionserver/MetricsRegionWrapper.java
index 2782af18b83..3115603aabf 100644
---
a/hbase-hadoop-compat/src/main/java/org/apache/hadoop/hbase/regionserver/MetricsRegionWrapper.java
+++
b/hbase-hadoop-compat/src/main/java/org/apache/hadoop/hbase/regionserver/MetricsRegionWrapper.java
@@ -111,14 +111,14 @@ public interface MetricsRegionWrapper {
long getNumCompactionsFailed();
/**
- * @return the total number of compactions that are currently queued(or
being executed) at point
- * in time
+ * Returns the total number of compactions that are currently queued(or
being executed) at point
+ * in time
*/
long getNumCompactionsQueued();
/**
- * @return the total number of flushes currently queued(being executed) for
this region at point
- * in time
+ * Returns the total number of flushes currently queued(being executed) for
this region at point
+ * in time
*/
long getNumFlushesQueued();
@@ -145,8 +145,8 @@ public interface MetricsRegionWrapper {
long getStoreRefCount();
/**
- * @return the max number of references active on any store file among all
compacted store files
- * that belong to this region
+ * Returns the max number of references active on any store file among all
compacted store files
+ * that belong to this region
*/
long getMaxCompactedStoreFileRefCount();
diff --git
a/hbase-hadoop-compat/src/test/java/org/apache/hadoop/hbase/HadoopShims.java
b/hbase-hadoop-compat/src/test/java/org/apache/hadoop/hbase/HadoopShims.java
index 92442de2b3c..04b0fef9cd4 100644
--- a/hbase-hadoop-compat/src/test/java/org/apache/hadoop/hbase/HadoopShims.java
+++ b/hbase-hadoop-compat/src/test/java/org/apache/hadoop/hbase/HadoopShims.java
@@ -30,6 +30,7 @@ public interface HadoopShims {
* TaskAttemptId.forName()
* @return a concrete TaskAttemptContext instance of
o.a.h.mapreduce.TaskAttemptContext
*/
+ @SuppressWarnings("TypeParameterUnusedInFormals")
<T, J> T createTestTaskAttemptContext(final J job, final String taskId);
}
diff --git
a/hbase-hadoop-compat/src/test/java/org/apache/hadoop/hbase/TestCompatibilitySingletonFactory.java
b/hbase-hadoop-compat/src/test/java/org/apache/hadoop/hbase/TestCompatibilitySingletonFactory.java
index e963a439efa..10f11240743 100644
---
a/hbase-hadoop-compat/src/test/java/org/apache/hadoop/hbase/TestCompatibilitySingletonFactory.java
+++
b/hbase-hadoop-compat/src/test/java/org/apache/hadoop/hbase/TestCompatibilitySingletonFactory.java
@@ -41,7 +41,7 @@ public class TestCompatibilitySingletonFactory {
private static final int ITERATIONS = 100000;
- private class TestCompatibilitySingletonFactoryCallable implements
Callable<String> {
+ private static class TestCompatibilitySingletonFactoryCallable implements
Callable<String> {
@Override
public String call() throws Exception {
diff --git
a/hbase-hadoop2-compat/src/main/java/org/apache/hadoop/hbase/ipc/MetricsHBaseServerSourceFactoryImpl.java
b/hbase-hadoop2-compat/src/main/java/org/apache/hadoop/hbase/ipc/MetricsHBaseServerSourceFactoryImpl.java
index bdb87a727a5..8a946383a59 100644
---
a/hbase-hadoop2-compat/src/main/java/org/apache/hadoop/hbase/ipc/MetricsHBaseServerSourceFactoryImpl.java
+++
b/hbase-hadoop2-compat/src/main/java/org/apache/hadoop/hbase/ipc/MetricsHBaseServerSourceFactoryImpl.java
@@ -23,10 +23,12 @@ import org.apache.yetus.audience.InterfaceAudience;
@InterfaceAudience.Private
public class MetricsHBaseServerSourceFactoryImpl extends
MetricsHBaseServerSourceFactory {
+
+ @SuppressWarnings("ImmutableEnumChecker")
private enum SourceStorage {
INSTANCE;
- HashMap<String, MetricsHBaseServerSource> sources = new HashMap<>();
+ private final HashMap<String, MetricsHBaseServerSource> sources = new
HashMap<>();
}
@Override
diff --git
a/hbase-hadoop2-compat/src/main/java/org/apache/hadoop/hbase/mapreduce/JobUtil.java
b/hbase-hadoop2-compat/src/main/java/org/apache/hadoop/hbase/mapreduce/JobUtil.java
index f1555f660be..023f8d1ada0 100644
---
a/hbase-hadoop2-compat/src/main/java/org/apache/hadoop/hbase/mapreduce/JobUtil.java
+++
b/hbase-hadoop2-compat/src/main/java/org/apache/hadoop/hbase/mapreduce/JobUtil.java
@@ -24,8 +24,6 @@ import org.apache.hadoop.mapreduce.Cluster;
import org.apache.hadoop.mapreduce.JobSubmissionFiles;
import org.apache.yetus.audience.InterfaceAudience;
import org.apache.yetus.audience.InterfaceStability;
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
/**
* Utility methods to interact with a job.
@@ -33,7 +31,6 @@ import org.slf4j.LoggerFactory;
@InterfaceAudience.Private
@InterfaceStability.Evolving
public abstract class JobUtil {
- private static final Logger LOG = LoggerFactory.getLogger(JobUtil.class);
protected JobUtil() {
super();
diff --git
a/hbase-hadoop2-compat/src/main/java/org/apache/hadoop/hbase/master/MetricsAssignmentManagerSourceImpl.java
b/hbase-hadoop2-compat/src/main/java/org/apache/hadoop/hbase/master/MetricsAssignmentManagerSourceImpl.java
index 5d88638df52..5512e906b67 100644
---
a/hbase-hadoop2-compat/src/main/java/org/apache/hadoop/hbase/master/MetricsAssignmentManagerSourceImpl.java
+++
b/hbase-hadoop2-compat/src/main/java/org/apache/hadoop/hbase/master/MetricsAssignmentManagerSourceImpl.java
@@ -66,6 +66,7 @@ public class MetricsAssignmentManagerSourceImpl extends
BaseSourceImpl
super(metricsName, metricsDescription, metricsContext, metricsJmxContext);
}
+ @Override
public void init() {
ritGauge = metricsRegistry.newGauge(RIT_COUNT_NAME, RIT_COUNT_DESC, 0L);
ritCountOverThresholdGauge =
diff --git
a/hbase-hadoop2-compat/src/main/java/org/apache/hadoop/hbase/master/MetricsMasterSourceFactoryImpl.java
b/hbase-hadoop2-compat/src/main/java/org/apache/hadoop/hbase/master/MetricsMasterSourceFactoryImpl.java
index 84c49062f03..f13b351d1f9 100644
---
a/hbase-hadoop2-compat/src/main/java/org/apache/hadoop/hbase/master/MetricsMasterSourceFactoryImpl.java
+++
b/hbase-hadoop2-compat/src/main/java/org/apache/hadoop/hbase/master/MetricsMasterSourceFactoryImpl.java
@@ -24,10 +24,12 @@ import org.apache.yetus.audience.InterfaceAudience;
*/
@InterfaceAudience.Private
public class MetricsMasterSourceFactoryImpl implements
MetricsMasterSourceFactory {
+
+ @SuppressWarnings("ImmutableEnumChecker")
private static enum FactoryStorage {
INSTANCE;
- MetricsMasterSource masterSource;
+ private MetricsMasterSource masterSource;
}
@Override
diff --git
a/hbase-hadoop2-compat/src/main/java/org/apache/hadoop/hbase/master/balancer/MetricsStochasticBalancerSourceImpl.java
b/hbase-hadoop2-compat/src/main/java/org/apache/hadoop/hbase/master/balancer/MetricsStochasticBalancerSourceImpl.java
index 358e4a79515..1d770b5bdef 100644
---
a/hbase-hadoop2-compat/src/main/java/org/apache/hadoop/hbase/master/balancer/MetricsStochasticBalancerSourceImpl.java
+++
b/hbase-hadoop2-compat/src/main/java/org/apache/hadoop/hbase/master/balancer/MetricsStochasticBalancerSourceImpl.java
@@ -64,6 +64,7 @@ public class MetricsStochasticBalancerSourceImpl extends
MetricsBalancerSourceIm
/**
* Reports stochastic load balancer costs to JMX
*/
+ @Override
public void updateStochasticCost(String tableName, String costFunctionName,
String functionDesc,
Double cost) {
if (tableName == null || costFunctionName == null || cost == null) {
diff --git
a/hbase-hadoop2-compat/src/main/java/org/apache/hadoop/hbase/metrics/BaseSourceImpl.java
b/hbase-hadoop2-compat/src/main/java/org/apache/hadoop/hbase/metrics/BaseSourceImpl.java
index 9f11ff97128..2db502deb15 100644
---
a/hbase-hadoop2-compat/src/main/java/org/apache/hadoop/hbase/metrics/BaseSourceImpl.java
+++
b/hbase-hadoop2-compat/src/main/java/org/apache/hadoop/hbase/metrics/BaseSourceImpl.java
@@ -39,6 +39,7 @@ import org.apache.yetus.audience.InterfaceAudience;
@InterfaceAudience.Private
public class BaseSourceImpl implements BaseSource, MetricsSource {
+ @SuppressWarnings("ImmutableEnumChecker")
private static enum DefaultMetricsSystemInitializer {
INSTANCE;
@@ -121,6 +122,7 @@ public class BaseSourceImpl implements BaseSource,
MetricsSource {
}
+ @Override
public void init() {
this.metricsRegistry.clearMetrics();
}
@@ -130,6 +132,7 @@ public class BaseSourceImpl implements BaseSource,
MetricsSource {
* @param gaugeName gauge name
* @param value the new value of the gauge.
*/
+ @Override
public void setGauge(String gaugeName, long value) {
MutableGaugeLong gaugeInt = metricsRegistry.getGauge(gaugeName, value);
gaugeInt.set(value);
@@ -140,6 +143,7 @@ public class BaseSourceImpl implements BaseSource,
MetricsSource {
* @param gaugeName The name of the gauge to increment.
* @param delta The amount to increment the gauge by.
*/
+ @Override
public void incGauge(String gaugeName, long delta) {
MutableGaugeLong gaugeInt = metricsRegistry.getGauge(gaugeName, 0L);
gaugeInt.incr(delta);
@@ -150,6 +154,7 @@ public class BaseSourceImpl implements BaseSource,
MetricsSource {
* @param gaugeName The name of the gauge.
* @param delta the ammount to subtract from a gauge value.
*/
+ @Override
public void decGauge(String gaugeName, long delta) {
MutableGaugeLong gaugeInt = metricsRegistry.getGauge(gaugeName, 0L);
gaugeInt.decr(delta);
@@ -160,6 +165,7 @@ public class BaseSourceImpl implements BaseSource,
MetricsSource {
* @param key the name of the counter
* @param delta the ammount to increment
*/
+ @Override
public void incCounters(String key, long delta) {
MutableFastCounter counter = metricsRegistry.getCounter(key, 0L);
counter.incr(delta);
@@ -176,6 +182,7 @@ public class BaseSourceImpl implements BaseSource,
MetricsSource {
* Remove a named gauge.
* @param key the key of the gauge to remove
*/
+ @Override
public void removeMetric(String key) {
metricsRegistry.removeMetric(key);
JmxCacheBuster.clearJmxCache();
@@ -190,18 +197,22 @@ public class BaseSourceImpl implements BaseSource,
MetricsSource {
return metricsRegistry;
}
+ @Override
public String getMetricsContext() {
return metricsContext;
}
+ @Override
public String getMetricsDescription() {
return metricsDescription;
}
+ @Override
public String getMetricsJmxContext() {
return metricsJmxContext;
}
+ @Override
public String getMetricsName() {
return metricsName;
}
diff --git
a/hbase-hadoop2-compat/src/main/java/org/apache/hadoop/hbase/metrics/Interns.java
b/hbase-hadoop2-compat/src/main/java/org/apache/hadoop/hbase/metrics/Interns.java
index 5952a60a0a5..2a455973255 100644
---
a/hbase-hadoop2-compat/src/main/java/org/apache/hadoop/hbase/metrics/Interns.java
+++
b/hbase-hadoop2-compat/src/main/java/org/apache/hadoop/hbase/metrics/Interns.java
@@ -39,6 +39,7 @@ public final class Interns {
private static LoadingCache<String, ConcurrentHashMap<String, MetricsInfo>>
infoCache =
CacheBuilder.newBuilder().expireAfterAccess(1, TimeUnit.DAYS)
.build(new CacheLoader<String, ConcurrentHashMap<String, MetricsInfo>>()
{
+ @Override
public ConcurrentHashMap<String, MetricsInfo> load(String key) {
return new ConcurrentHashMap<>();
}
@@ -46,6 +47,7 @@ public final class Interns {
private static LoadingCache<MetricsInfo, ConcurrentHashMap<String,
MetricsTag>> tagCache =
CacheBuilder.newBuilder().expireAfterAccess(1, TimeUnit.DAYS)
.build(new CacheLoader<MetricsInfo, ConcurrentHashMap<String,
MetricsTag>>() {
+ @Override
public ConcurrentHashMap<String, MetricsTag> load(MetricsInfo key) {
return new ConcurrentHashMap<>();
}
diff --git
a/hbase-hadoop2-compat/src/main/java/org/apache/hadoop/hbase/regionserver/MetricsRegionAggregateSourceImpl.java
b/hbase-hadoop2-compat/src/main/java/org/apache/hadoop/hbase/regionserver/MetricsRegionAggregateSourceImpl.java
index a1f46182c17..368eb5eb60b 100644
---
a/hbase-hadoop2-compat/src/main/java/org/apache/hadoop/hbase/regionserver/MetricsRegionAggregateSourceImpl.java
+++
b/hbase-hadoop2-compat/src/main/java/org/apache/hadoop/hbase/regionserver/MetricsRegionAggregateSourceImpl.java
@@ -51,6 +51,7 @@ public class MetricsRegionAggregateSourceImpl extends
BaseSourceImpl
// Every few mins clean the JMX cache.
executor.getExecutor().scheduleWithFixedDelay(new Runnable() {
+ @Override
public void run() {
JmxCacheBuster.clearJmxCache();
}
diff --git
a/hbase-hadoop2-compat/src/main/java/org/apache/hadoop/hbase/regionserver/MetricsRegionServerSourceFactoryImpl.java
b/hbase-hadoop2-compat/src/main/java/org/apache/hadoop/hbase/regionserver/MetricsRegionServerSourceFactoryImpl.java
index c2a5e163f0f..f653788fcfc 100644
---
a/hbase-hadoop2-compat/src/main/java/org/apache/hadoop/hbase/regionserver/MetricsRegionServerSourceFactoryImpl.java
+++
b/hbase-hadoop2-compat/src/main/java/org/apache/hadoop/hbase/regionserver/MetricsRegionServerSourceFactoryImpl.java
@@ -27,10 +27,12 @@ import org.apache.yetus.audience.InterfaceAudience;
*/
@InterfaceAudience.Private
public class MetricsRegionServerSourceFactoryImpl implements
MetricsRegionServerSourceFactory {
+
+ @SuppressWarnings("ImmutableEnumChecker")
public static enum FactoryStorage {
INSTANCE;
- private Object aggLock = new Object();
+ private final Object aggLock = new Object();
private MetricsRegionAggregateSourceImpl regionAggImpl;
private MetricsUserAggregateSourceImpl userAggImpl;
private MetricsTableAggregateSourceImpl tblAggImpl;
@@ -46,6 +48,7 @@ public class MetricsRegionServerSourceFactoryImpl implements
MetricsRegionServer
}
}
+ @Override
public synchronized MetricsUserAggregateSourceImpl getUserAggregate() {
synchronized (FactoryStorage.INSTANCE.aggLock) {
if (FactoryStorage.INSTANCE.userAggImpl == null) {
@@ -91,6 +94,7 @@ public class MetricsRegionServerSourceFactoryImpl implements
MetricsRegionServer
return new MetricsTableSourceImpl(table, getTableAggregate(), wrapper);
}
+ @Override
public MetricsIOSource createIO(MetricsIOWrapper wrapper) {
return new MetricsIOSourceImpl(wrapper);
}
diff --git
a/hbase-hadoop2-compat/src/main/java/org/apache/hadoop/hbase/regionserver/MetricsTableAggregateSourceImpl.java
b/hbase-hadoop2-compat/src/main/java/org/apache/hadoop/hbase/regionserver/MetricsTableAggregateSourceImpl.java
index 9b36d27b99d..2fa3c2142a6 100644
---
a/hbase-hadoop2-compat/src/main/java/org/apache/hadoop/hbase/regionserver/MetricsTableAggregateSourceImpl.java
+++
b/hbase-hadoop2-compat/src/main/java/org/apache/hadoop/hbase/regionserver/MetricsTableAggregateSourceImpl.java
@@ -43,10 +43,6 @@ public class MetricsTableAggregateSourceImpl extends
BaseSourceImpl
super(metricsName, metricsDescription, metricsContext, metricsJmxContext);
}
- private void register(MetricsTableSource source) {
- source.registerMetrics();
- }
-
@Override
public void deleteTableSource(String table) {
try {
diff --git
a/hbase-hadoop2-compat/src/main/java/org/apache/hadoop/hbase/regionserver/MetricsTableSourceImpl.java
b/hbase-hadoop2-compat/src/main/java/org/apache/hadoop/hbase/regionserver/MetricsTableSourceImpl.java
index afc4310fb69..f7d0068bd81 100644
---
a/hbase-hadoop2-compat/src/main/java/org/apache/hadoop/hbase/regionserver/MetricsTableSourceImpl.java
+++
b/hbase-hadoop2-compat/src/main/java/org/apache/hadoop/hbase/regionserver/MetricsTableSourceImpl.java
@@ -74,6 +74,9 @@ import org.apache.yetus.audience.InterfaceAudience;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
+import org.apache.hbase.thirdparty.com.google.common.base.Splitter;
+import org.apache.hbase.thirdparty.com.google.common.collect.Iterables;
+
@InterfaceAudience.Private
public class MetricsTableSourceImpl implements MetricsTableSource {
@@ -350,8 +353,9 @@ public class MetricsTableSourceImpl implements
MetricsTableSource {
for (Entry<String, Long> entry : metricMap.entrySet()) {
// append 'store' and its name to the metric
mrb.addGauge(Interns.info(this.tableNamePrefixPart1 + _COLUMNFAMILY
- + entry.getKey().split(MetricsTableWrapperAggregate.HASH)[1] +
this.tableNamePrefixPart2
- + metricName, metricDesc), entry.getValue());
+ + Iterables
+
.get(Splitter.onPattern(MetricsTableWrapperAggregate.HASH).split(entry.getKey()),
1)
+ + this.tableNamePrefixPart2 + metricName, metricDesc),
entry.getValue());
}
}
}
@@ -371,11 +375,9 @@ public class MetricsTableSourceImpl implements
MetricsTableSource {
if (this == o) {
return true;
}
-
- if (o == null || getClass() != o.getClass()) {
+ if (!(o instanceof MetricsTableSourceImpl)) {
return false;
}
-
return (compareTo((MetricsTableSourceImpl) o) == 0);
}
diff --git
a/hbase-hadoop2-compat/src/main/java/org/apache/hadoop/hbase/regionserver/MetricsUserSourceImpl.java
b/hbase-hadoop2-compat/src/main/java/org/apache/hadoop/hbase/regionserver/MetricsUserSourceImpl.java
index 8559e0e4b92..95cb3623954 100644
---
a/hbase-hadoop2-compat/src/main/java/org/apache/hadoop/hbase/regionserver/MetricsUserSourceImpl.java
+++
b/hbase-hadoop2-compat/src/main/java/org/apache/hadoop/hbase/regionserver/MetricsUserSourceImpl.java
@@ -57,7 +57,6 @@ public class MetricsUserSourceImpl implements
MetricsUserSource {
private final int hashCode;
private AtomicBoolean closed = new AtomicBoolean(false);
- private final MetricsUserAggregateSourceImpl agg;
private final DynamicMetricsRegistry registry;
private ConcurrentHashMap<String, ClientMetrics> clientMetricsMap;
@@ -115,7 +114,6 @@ public class MetricsUserSourceImpl implements
MetricsUserSource {
}
this.user = user;
- this.agg = agg;
this.registry = agg.getMetricsRegistry();
this.userNamePrefix = "user_" + user + "_metric_";
diff --git
a/hbase-hadoop2-compat/src/main/java/org/apache/hadoop/hbase/replication/regionserver/MetricsReplicationSourceFactoryImpl.java
b/hbase-hadoop2-compat/src/main/java/org/apache/hadoop/hbase/replication/regionserver/MetricsReplicationSourceFactoryImpl.java
index 5b223b42392..fcfaa0bfa8d 100644
---
a/hbase-hadoop2-compat/src/main/java/org/apache/hadoop/hbase/replication/regionserver/MetricsReplicationSourceFactoryImpl.java
+++
b/hbase-hadoop2-compat/src/main/java/org/apache/hadoop/hbase/replication/regionserver/MetricsReplicationSourceFactoryImpl.java
@@ -22,10 +22,11 @@ import org.apache.yetus.audience.InterfaceAudience;
@InterfaceAudience.Private
public class MetricsReplicationSourceFactoryImpl implements
MetricsReplicationSourceFactory {
+ @SuppressWarnings("ImmutableEnumChecker")
private static enum SourceHolder {
INSTANCE;
- final MetricsReplicationSourceImpl source = new
MetricsReplicationSourceImpl();
+ private final MetricsReplicationSourceImpl source = new
MetricsReplicationSourceImpl();
}
@Override
diff --git
a/hbase-hadoop2-compat/src/main/java/org/apache/hadoop/hbase/thrift/MetricsThriftServerSourceFactoryImpl.java
b/hbase-hadoop2-compat/src/main/java/org/apache/hadoop/hbase/thrift/MetricsThriftServerSourceFactoryImpl.java
index 0ad71fc46c4..6921f278865 100644
---
a/hbase-hadoop2-compat/src/main/java/org/apache/hadoop/hbase/thrift/MetricsThriftServerSourceFactoryImpl.java
+++
b/hbase-hadoop2-compat/src/main/java/org/apache/hadoop/hbase/thrift/MetricsThriftServerSourceFactoryImpl.java
@@ -29,11 +29,12 @@ public class MetricsThriftServerSourceFactoryImpl
implements MetricsThriftServer
* A singleton used to make sure that only one thrift metrics source per
server type is ever
* created.
*/
+ @SuppressWarnings("ImmutableEnumChecker")
private enum FactoryStorage {
INSTANCE;
- MetricsThriftServerSourceImpl thriftOne;
- MetricsThriftServerSourceImpl thriftTwo;
+ private MetricsThriftServerSourceImpl thriftOne;
+ private MetricsThriftServerSourceImpl thriftTwo;
}
@Override
diff --git
a/hbase-hadoop2-compat/src/main/java/org/apache/hadoop/hbase/zookeeper/MetricsZooKeeperSourceImpl.java
b/hbase-hadoop2-compat/src/main/java/org/apache/hadoop/hbase/zookeeper/MetricsZooKeeperSourceImpl.java
index 9429428d300..3f3aa3a9ea5 100644
---
a/hbase-hadoop2-compat/src/main/java/org/apache/hadoop/hbase/zookeeper/MetricsZooKeeperSourceImpl.java
+++
b/hbase-hadoop2-compat/src/main/java/org/apache/hadoop/hbase/zookeeper/MetricsZooKeeperSourceImpl.java
@@ -83,6 +83,7 @@ public class MetricsZooKeeperSourceImpl extends
BaseSourceImpl implements Metric
SYNC_OPERATION_LATENCY_DESC);
}
+ @Override
public void getMetrics(MetricsCollector metricsCollector, boolean all) {
super.getMetrics(metricsCollector, all);
clearZKExceptionMetrics();
diff --git
a/hbase-hadoop2-compat/src/main/java/org/apache/hadoop/metrics2/lib/DefaultMetricsSystemHelper.java
b/hbase-hadoop2-compat/src/main/java/org/apache/hadoop/metrics2/lib/DefaultMetricsSystemHelper.java
index 09556707648..a9c530f382a 100644
---
a/hbase-hadoop2-compat/src/main/java/org/apache/hadoop/metrics2/lib/DefaultMetricsSystemHelper.java
+++
b/hbase-hadoop2-compat/src/main/java/org/apache/hadoop/metrics2/lib/DefaultMetricsSystemHelper.java
@@ -33,6 +33,7 @@ public class DefaultMetricsSystemHelper {
private final Field mapField;
public DefaultMetricsSystemHelper() {
+ @SuppressWarnings("GetClassOnEnum")
Class<? extends DefaultMetricsSystem> clazz =
DefaultMetricsSystem.INSTANCE.getClass();
Method m;
try {
diff --git
a/hbase-hadoop2-compat/src/main/java/org/apache/hadoop/metrics2/lib/DynamicMetricsRegistry.java
b/hbase-hadoop2-compat/src/main/java/org/apache/hadoop/metrics2/lib/DynamicMetricsRegistry.java
index f1b1196cea4..f2666cf692f 100644
---
a/hbase-hadoop2-compat/src/main/java/org/apache/hadoop/metrics2/lib/DynamicMetricsRegistry.java
+++
b/hbase-hadoop2-compat/src/main/java/org/apache/hadoop/metrics2/lib/DynamicMetricsRegistry.java
@@ -26,8 +26,6 @@ import org.apache.hadoop.metrics2.MetricsRecordBuilder;
import org.apache.hadoop.metrics2.MetricsTag;
import org.apache.hadoop.metrics2.impl.MsInfo;
import org.apache.yetus.audience.InterfaceAudience;
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
import org.apache.hbase.thirdparty.com.google.common.base.MoreObjects;
import org.apache.hbase.thirdparty.com.google.common.collect.Maps;
@@ -43,7 +41,6 @@ import
org.apache.hbase.thirdparty.com.google.common.collect.Maps;
*/
@InterfaceAudience.Private
public class DynamicMetricsRegistry {
- private static final Logger LOG =
LoggerFactory.getLogger(DynamicMetricsRegistry.class);
private final ConcurrentMap<String, MutableMetric> metricsMap =
Maps.newConcurrentMap();
private final ConcurrentMap<String, MetricsTag> tagsMap =
Maps.newConcurrentMap();
diff --git
a/hbase-hadoop2-compat/src/main/java/org/apache/hadoop/metrics2/lib/MetricsExecutorImpl.java
b/hbase-hadoop2-compat/src/main/java/org/apache/hadoop/metrics2/lib/MetricsExecutorImpl.java
index 1b4d9ecc8f1..1d4703f5943 100644
---
a/hbase-hadoop2-compat/src/main/java/org/apache/hadoop/metrics2/lib/MetricsExecutorImpl.java
+++
b/hbase-hadoop2-compat/src/main/java/org/apache/hadoop/metrics2/lib/MetricsExecutorImpl.java
@@ -43,6 +43,7 @@ public class MetricsExecutorImpl implements MetricsExecutor {
}
}
+ @SuppressWarnings("ImmutableEnumChecker")
private enum ExecutorSingleton {
INSTANCE;
diff --git
a/hbase-hadoop2-compat/src/main/java/org/apache/hadoop/metrics2/lib/MutableHistogram.java
b/hbase-hadoop2-compat/src/main/java/org/apache/hadoop/metrics2/lib/MutableHistogram.java
index d5356aecda3..df38b6ba33e 100644
---
a/hbase-hadoop2-compat/src/main/java/org/apache/hadoop/metrics2/lib/MutableHistogram.java
+++
b/hbase-hadoop2-compat/src/main/java/org/apache/hadoop/metrics2/lib/MutableHistogram.java
@@ -46,6 +46,7 @@ public class MutableHistogram extends MutableMetric
implements MetricHistogram {
this.histogram = new HistogramImpl();
}
+ @Override
public void add(final long val) {
histogram.update(val);
}
diff --git
a/hbase-hadoop2-compat/src/main/java/org/apache/hadoop/metrics2/util/MetricSampleQuantiles.java
b/hbase-hadoop2-compat/src/main/java/org/apache/hadoop/metrics2/util/MetricSampleQuantiles.java
index cf01b099bb8..f2d3f63dbcb 100644
---
a/hbase-hadoop2-compat/src/main/java/org/apache/hadoop/metrics2/util/MetricSampleQuantiles.java
+++
b/hbase-hadoop2-compat/src/main/java/org/apache/hadoop/metrics2/util/MetricSampleQuantiles.java
@@ -35,6 +35,7 @@ import org.apache.yetus.audience.InterfaceAudience;
* summaries" in SIGMOD 2001
*/
@InterfaceAudience.Private
+@SuppressWarnings("JdkObsolete") // This is a use case for LinkedList
public class MetricSampleQuantiles {
/**
diff --git
a/hbase-hadoop2-compat/src/test/java/org/apache/hadoop/hbase/HadoopShimsImpl.java
b/hbase-hadoop2-compat/src/test/java/org/apache/hadoop/hbase/HadoopShimsImpl.java
index 533d2d6d104..b12990eb9cf 100644
---
a/hbase-hadoop2-compat/src/test/java/org/apache/hadoop/hbase/HadoopShimsImpl.java
+++
b/hbase-hadoop2-compat/src/test/java/org/apache/hadoop/hbase/HadoopShimsImpl.java
@@ -33,7 +33,7 @@ public class HadoopShimsImpl implements HadoopShims {
* @return a concrete TaskAttemptContext instance of
o.a.h.mapreduce.TaskAttemptContext
*/
@Override
- @SuppressWarnings("unchecked")
+ @SuppressWarnings({ "unchecked", "TypeParameterUnusedInFormals" })
public <T, J> T createTestTaskAttemptContext(J job, String taskId) {
Job j = (Job) job;
return (T) new TaskAttemptContextImpl(j.getConfiguration(),
TaskAttemptID.forName(taskId));
