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https://issues.apache.org/jira/browse/HADOOP-6941?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13262795#comment-13262795
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Devaraj Das commented on HADOOP-6941:
-------------------------------------
Hey John, the patch wasn't tested with the version of JRE you are referring
to... But can you check what the System.getProperty("java.vendor") returns? The
patch uses that to distinguish between IBM's jvm and others..
> Support non-SUN JREs in UserGroupInformation
> --------------------------------------------
>
> Key: HADOOP-6941
> URL: https://issues.apache.org/jira/browse/HADOOP-6941
> Project: Hadoop Common
> Issue Type: Bug
> Environment: SLES 11, Apache Harmony 6 and SLES 11, IBM Java 6
> Reporter: Stephen Watt
> Assignee: Devaraj Das
> Fix For: 1.0.3, 2.0.0
>
> Attachments: 6941-1.patch, 6941-branch1.patch, HADOOP-6941.patch,
> hadoop-6941.patch
>
>
> Attempting to format the namenode or attempting to start Hadoop using Apache
> Harmony or the IBM Java JREs results in the following exception:
> 10/09/07 16:35:05 ERROR namenode.NameNode: java.lang.NoClassDefFoundError:
> com.sun.security.auth.UnixPrincipal
> at
> org.apache.hadoop.security.UserGroupInformation.<clinit>(UserGroupInformation.java:223)
> at java.lang.J9VMInternals.initializeImpl(Native Method)
> at java.lang.J9VMInternals.initialize(J9VMInternals.java:200)
> at
> org.apache.hadoop.hdfs.server.namenode.FSNamesystem.setConfigurationParameters(FSNamesystem.java:420)
> at
> org.apache.hadoop.hdfs.server.namenode.FSNamesystem.<init>(FSNamesystem.java:391)
> at
> org.apache.hadoop.hdfs.server.namenode.NameNode.format(NameNode.java:1240)
> at
> org.apache.hadoop.hdfs.server.namenode.NameNode.createNameNode(NameNode.java:1348)
> at
> org.apache.hadoop.hdfs.server.namenode.NameNode.main(NameNode.java:1368)
> Caused by: java.lang.ClassNotFoundException:
> com.sun.security.auth.UnixPrincipal
> at java.net.URLClassLoader.findClass(URLClassLoader.java:421)
> at java.lang.ClassLoader.loadClass(ClassLoader.java:652)
> at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:346)
> at java.lang.ClassLoader.loadClass(ClassLoader.java:618)
> ... 8 more
> This is a negative regression as previous versions of Hadoop worked with
> these JREs
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