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https://issues.apache.org/jira/browse/HADOOP-3642?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12608098#action_12608098
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Steve Loughran commented on HADOOP-3642:
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the problem here is a java5/java6 constructor change in IOE
[exec] [javac] Compiling 277 source files to
/zonestorage/hudson/home/hudson/hudson/jobs/Hadoop-Patch/workspace/trunk/build/classes
[exec] [javac]
/zonestorage/hudson/home/hudson/hudson/jobs/Hadoop-Patch/workspace/trunk/src/core/org/apache/hadoop/util/HadoopIOException.java:72:
cannot find symbol
[exec] [javac] symbol : constructor IOException(java.lang.Throwable)
[exec] [javac] location: class java.io.IOException
[exec] [javac] super(cause);
[exec] [javac] ^
[exec] [javac] Note: Some input files use or override a deprecated API.
[exec] [javac] Note: Recompile with -Xlint:deprecation for details.
[exec] [javac] 1 error
[exec]
> add a HadoopIOException that can be thrown in any method that has IOException
> on its signature
> ----------------------------------------------------------------------------------------------
>
> Key: HADOOP-3642
> URL: https://issues.apache.org/jira/browse/HADOOP-3642
> Project: Hadoop Core
> Issue Type: New Feature
> Components: util
> Affects Versions: 0.19.0
> Reporter: Steve Loughran
> Assignee: Steve Loughran
> Priority: Minor
> Attachments: hadoop-io-exception.patch, hadoop-io-exception.patch
>
>
> I find myself having to throw IOExceptions a lot, and create new ones -but
> the classes signature varies from java1.5 to 1.6, and the base IOException is
> fairly meaningless. If Hadoop added a HadoopIOException, it could be thrown
> whenever hadoop's own code needed to create new IOExceptions, and possibly be
> differentiated in the catch() logic.
> The biggest disadvantage of doing this is that as IOException is built into
> the JVM, you can be sure that the far end will be able to deserialize it
> under RMI, without having the rest of hadoop on the classpath. This is not a
> feature of hadoop, so should not be an issue. For those of us who do use RMI,
> well, we'd better get our classpaths right.
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