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https://issues.apache.org/jira/browse/HBASE-25058?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17522023#comment-17522023
]
Duo Zhang commented on HBASE-25058:
-----------------------------------
There are still several warnings, the first one which happens the most time is
about KerberosUtil in hadoop, which should have been fixed by HADOOP-10848.
Others are
{noformat}
WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by
org.apache.commons.lang3.builder.EqualsBuilder
(file:/home/jenkins/jenkins-home/workspace/Base-PreCommit-GitHub-PR_PR-4337/yetus-m2/hbase-master-patch-0/org/apache/commons/commons-lang3/3.9/commons-lang3-3.9.jar)
to field java.util.Collections$UnmodifiableMap.serialVersionUID
WARNING: Please consider reporting this to the maintainers of
org.apache.commons.lang3.builder.EqualsBuilder
WARNING: Use --illegal-access=warn to enable warnings of further illegal
reflective access operations
WARNING: All illegal access operations will be denied in a future release
{noformat}
{noformat}
WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by
org.mockito.internal.util.reflection.AccessibilityChanger
(file:/home/jenkins/jenkins-home/workspace/Base-PreCommit-GitHub-PR_PR-4337/yetus-m2/hbase-master-patch-0/org/mockito/mockito-core/2.28.2/mockito-core-2.28.2.jar)
to field java.nio.channels.spi.AbstractInterruptibleChannel.closeLock
WARNING: Please consider reporting this to the maintainers of
org.mockito.internal.util.reflection.AccessibilityChanger
WARNING: Use --illegal-access=warn to enable warnings of further illegal
reflective access operations
WARNING: All illegal access operations will be denied in a future release
{noformat}
{noformat}
WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by
org.apache.hadoop.hbase.regionserver.TestOpenRegionFailedMemoryLeak
(file:/home/jenkins/jenkins-home/workspace/Base-PreCommit-GitHub-PR_PR-4337/yetus-jdk11-hadoop3-check/src/hbase-server/target/test-classes/)
to field java.util.concurrent.ThreadPoolExecutor.workQueue
WARNING: Please consider reporting this to the maintainers of
org.apache.hadoop.hbase.regionserver.TestOpenRegionFailedMemoryLeak
WARNING: Use --illegal-access=warn to enable warnings of further illegal
reflective access operations
WARNING: All illegal access operations will be denied in a future release
{noformat}
Let me check each of them to see if there is possible way to hide the warning.
> Export necessary modules when running under JDK11
> -------------------------------------------------
>
> Key: HBASE-25058
> URL: https://issues.apache.org/jira/browse/HBASE-25058
> Project: HBase
> Issue Type: Sub-task
> Components: Performance, rpc
> Affects Versions: 3.0.0-alpha-1, 2.3.0, 2.4.0
> Reporter: Nick Dimiduk
> Assignee: Duo Zhang
> Priority: Major
>
> Running on JDK11, I noticed this in the debug logging. It looks like netty is
> using {{sun.misc.Unsafe}} instead of the new location on jdk11.
> {noformat}
> 2020-09-17 00:21:53,318 DEBUG
> org.apache.hbase.thirdparty.io.netty.util.internal.PlatformDependent0:
> jdk.internal.misc.Unsafe.allocateUninitializedArray(int): unavailable
> java.lang.IllegalAccessException: class
> org.apache.hbase.thirdparty.io.netty.util.internal.PlatformDependent0$6
> cannot access class jdk.internal.misc.Unsafe (in module java.base) because
> module java.base does not export jdk.internal.misc to unnamed module @78461bc4
> at
> java.base/jdk.internal.reflect.Reflection.newIllegalAccessException(Reflection.java:361)
> at
> java.base/java.lang.reflect.AccessibleObject.checkAccess(AccessibleObject.java:591)
> at java.base/java.lang.reflect.Method.invoke(Method.java:558)
> at
> org.apache.hbase.thirdparty.io.netty.util.internal.PlatformDependent0$6.run(PlatformDependent0.java:335)
> at java.base/java.security.AccessController.doPrivileged(Native
> Method)
> at
> org.apache.hbase.thirdparty.io.netty.util.internal.PlatformDependent0.<clinit>(PlatformDependent0.java:326)
> at
> org.apache.hbase.thirdparty.io.netty.util.internal.PlatformDependent.isAndroid(PlatformDependent.java:289)
> at
> org.apache.hbase.thirdparty.io.netty.util.internal.PlatformDependent.<clinit>(PlatformDependent.java:92)
> at
> org.apache.hbase.thirdparty.io.netty.channel.epoll.Native.loadNativeLibrary(Native.java:228)
> at
> org.apache.hbase.thirdparty.io.netty.channel.epoll.Native.<clinit>(Native.java:58)
> at
> org.apache.hbase.thirdparty.io.netty.channel.epoll.Epoll.<clinit>(Epoll.java:39)
> at
> org.apache.hbase.thirdparty.io.netty.channel.epoll.EpollEventLoop.<clinit>(EpollEventLoop.java:51)
> at
> org.apache.hbase.thirdparty.io.netty.channel.epoll.EpollEventLoopGroup.newChild(EpollEventLoopGroup.java:150)
> at
> org.apache.hbase.thirdparty.io.netty.channel.epoll.EpollEventLoopGroup.newChild(EpollEventLoopGroup.java:35)
> at
> org.apache.hbase.thirdparty.io.netty.util.concurrent.MultithreadEventExecutorGroup.<init>(MultithreadEventExecutorGroup.java:84)
> at
> org.apache.hbase.thirdparty.io.netty.util.concurrent.MultithreadEventExecutorGroup.<init>(MultithreadEventExecutorGroup.java:58)
> at
> org.apache.hbase.thirdparty.io.netty.util.concurrent.MultithreadEventExecutorGroup.<init>(MultithreadEventExecutorGroup.java:47)
> at
> org.apache.hbase.thirdparty.io.netty.channel.MultithreadEventLoopGroup.<init>(MultithreadEventLoopGroup.java:59)
> at
> org.apache.hbase.thirdparty.io.netty.channel.epoll.EpollEventLoopGroup.<init>(EpollEventLoopGroup.java:112)
> at
> org.apache.hbase.thirdparty.io.netty.channel.epoll.EpollEventLoopGroup.<init>(EpollEventLoopGroup.java:99)
> at
> org.apache.hbase.thirdparty.io.netty.channel.epoll.EpollEventLoopGroup.<init>(EpollEventLoopGroup.java:76)
> at
> org.apache.hadoop.hbase.util.NettyEventLoopGroupConfig.<init>(NettyEventLoopGroupConfig.java:58)
> at
> org.apache.hadoop.hbase.regionserver.HRegionServer.setupNetty(HRegionServer.java:713)
> at
> org.apache.hadoop.hbase.regionserver.HRegionServer.<init>(HRegionServer.java:569)
> at org.apache.hadoop.hbase.master.HMaster.<init>(HMaster.java:524)
> at
> java.base/jdk.internal.reflect.NativeConstructorAccessorImpl.newInstance0(Native
> Method)
> at
> java.base/jdk.internal.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
> at
> java.base/jdk.internal.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
> at
> java.base/java.lang.reflect.Constructor.newInstance(Constructor.java:490)
> at
> org.apache.hadoop.hbase.master.HMaster.constructMaster(HMaster.java:3054)
> at
> org.apache.hadoop.hbase.master.HMasterCommandLine.startMaster(HMasterCommandLine.java:236)
> at
> org.apache.hadoop.hbase.master.HMasterCommandLine.run(HMasterCommandLine.java:140)
> at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:76)
> at
> org.apache.hadoop.hbase.util.ServerCommandLine.doMain(ServerCommandLine.java:149)
> at org.apache.hadoop.hbase.master.HMaster.main(HMaster.java:3072)
> {noformat}
> We should try to make this new API accessible to netty for future
> compatibility.
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