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https://issues.apache.org/jira/browse/HADOOP-6941?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13263971#comment-13263971
]
Kumar Ravi commented on HADOOP-6941:
------------------------------------
I am seeing the following message running IBM Java 7 running branch-1.0 code.
compile:
[echo] contrib: gridmix
[javac] Compiling 31 source files to
/home/hadoop/branch-1.0_0427/build/contrib/gridmix/classes
[javac]
/home/hadoop/branch-1.0_0427/src/contrib/gridmix/src/java/org/apache/hadoop/mapred/gridmix/Gridmix.java:396:
error: type argument ? extends T is not within bounds of type-variable E
[javac] private <T> String getEnumValues(Enum<? extends T>[] e) {
[javac] ^
[javac] where T,E are type-variables:
[javac] T extends Object declared in method <T>getEnumValues(Enum<?
extends T>[])
[javac] E extends Enum<E> declared in class Enum
[javac]
/home/hadoop/branch-1.0_0427/src/contrib/gridmix/src/java/org/apache/hadoop/mapred/gridmix/Gridmix.java:399:
error: type argument ? extends T is not within bounds of type-variable E
[javac] for (Enum<? extends T> v : e) {
[javac] ^
[javac] where T,E are type-variables:
[javac] T extends Object declared in method <T>getEnumValues(Enum<?
extends T>[])
[javac] E extends Enum<E> declared in class Enum
[javac] Note: Some input files use unchecked or unsafe operations.
[javac] Note: Recompile with -Xlint:unchecked for details.
[javac] 2 errors
BUILD FAILED
/home/hadoop/branch-1.0_0427/build.xml:703: The following error occurred while
executing this line:
/home/hadoop/branch-1.0_0427/src/contrib/build.xml:30: The following error
occurred while executing this line:
/home/hadoop/branch-1.0_0427/src/contrib/build-contrib.xml:185: Compile failed;
see the compiler error output for details.
> 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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