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https://issues.apache.org/jira/browse/HADOOP-19486?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17938977#comment-17938977
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Gary D. Gregory commented on HADOOP-19486:
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Hi All, would you please set expectations as to when we will be able to run on
Java 24/25-ea without getting failures like:
{noformat}
[ERROR]
org.apache.commons.vfs2.provider.hdfs.HdfsFileProviderTestCase$HdfsProviderTestSuite
-- Time elapsed: 0.006 s <<< ERROR!
java.lang.UnsupportedOperationException: getSubject is not supported
at java.base/javax.security.auth.Subject.getSubject(Subject.java:277)
at
org.apache.hadoop.security.UserGroupInformation.getCurrentUser(UserGroupInformation.java:588)
at
org.apache.hadoop.hdfs.server.namenode.FSNamesystem.<init>(FSNamesystem.java:887)
at
org.apache.hadoop.hdfs.server.namenode.FSNamesystem.<init>(FSNamesystem.java:851)
at
org.apache.hadoop.hdfs.server.namenode.NameNode.format(NameNode.java:1396)
at
org.apache.hadoop.hdfs.server.namenode.NameNode.format(NameNode.java:495)
at
org.apache.hadoop.hdfs.DFSTestUtil.formatNameNode(DFSTestUtil.java:256)
at
org.apache.hadoop.hdfs.MiniDFSCluster.configureNameService(MiniDFSCluster.java:1158)
at
org.apache.hadoop.hdfs.MiniDFSCluster.createNameNodesAndSetConf(MiniDFSCluster.java:1042)
at
org.apache.hadoop.hdfs.MiniDFSCluster.initMiniDFSCluster(MiniDFSCluster.java:974)
at org.apache.hadoop.hdfs.MiniDFSCluster.<init>(MiniDFSCluster.java:888)
at
org.apache.commons.vfs2.provider.hdfs.HdfsFileProviderTestCase$HdfsProviderTestSuite.setUp(HdfsFileProviderTestCase.java:113)
at
org.apache.commons.vfs2.AbstractTestSuite.lambda$run$0(AbstractTestSuite.java:234)
at junit.framework.TestResult.runProtected(TestResult.java:142)
at
org.apache.commons.vfs2.AbstractTestSuite.run(AbstractTestSuite.java:239)
{noformat}
> Fully Support Java 23 and 24
> ----------------------------
>
> Key: HADOOP-19486
> URL: https://issues.apache.org/jira/browse/HADOOP-19486
> Project: Hadoop Common
> Issue Type: Improvement
> Reporter: Istvan Toth
> Assignee: Istvan Toth
> Priority: Major
>
> Hadoop trunk today mostly supports JDK17, but doesn't work at all on JDK23.
> (and conversely on JDK24 to be released in less than two weeks)
> While there are many smaller issues, the major breaking change is the
> SecurityManager removal (JEP411/486), and its many consequences.
> The obvious change is that Subjec.doAs() and Subject.current() no longer work
> by default, and the replacement APIs must be used.
> The more insidius change is that when SecurityManager is disabled then JDK22+
> does not propapage the Subject to new Threads, which is something that Hadoop
> absolutely relies on.
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