[HDFS-15580] [JDK 12] DFSTestUtil#addDataNodeLayoutVersion fails

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 3.4.0
• Fix Version/s: 3.4.0
• Component/s: test
• Labels: pull-request-available
• Target Version/s: 3.4.0
• Hadoop Flags: Reviewed
• Assignee: Akira Ajisaka
• Reporter: Akira Ajisaka
• Created: 16/Sep/20 10:23
• Updated: 27/Jan/24 03:08
• Resolved: 27/Oct/20 10:19

Description

DFSTestUtil#addDataNodeLayoutVersion uses reflection to update final variables, however, it is not allowed in Java 12+. Please see https://bugs.openjdk.java.net/browse/JDK-8210522 for the detail.

[ERROR] testWithLayoutChangeAndFinalize(org.apache.hadoop.hdfs.server.datanode.TestDataNodeRollingUpgrade)  Time elapsed: 11.159 s  <<< ERROR!
java.lang.NoSuchFieldException: modifiers
	at java.base/java.lang.Class.getDeclaredField(Class.java:2569)
	at org.apache.hadoop.hdfs.DFSTestUtil.addDataNodeLayoutVersion(DFSTestUtil.java:1961)
	at org.apache.hadoop.hdfs.server.datanode.TestDataNodeRollingUpgrade.testWithLayoutChangeAndFinalize(TestDataNodeRollingUpgrade.java:364)
	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:64)
	at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.base/java.lang.reflect.Method.invoke(Method.java:564)
	at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:50)
	at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
	at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:47)
	at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)
	at org.junit.internal.runners.statements.FailOnTimeout$CallableStatement.call(FailOnTimeout.java:298)
	at org.junit.internal.runners.statements.FailOnTimeout$CallableStatement.call(FailOnTimeout.java:292)
	at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)
	at java.base/java.lang.Thread.run(Thread.java:832)

Issue Links

• is a child of: HADOOP-17177 Java 17 support
• links to: GitHub Pull Request #2309