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Posted to mapreduce-dev@hadoop.apache.org by "Steve Loughran (Created) (JIRA)" <ji...@apache.org> on 2012/03/03 15:07:57 UTC
[jira] [Created] (MAPREDUCE-3965) JobConf.findContainingJar NPEs if
it can't find the classloader of a class
JobConf.findContainingJar NPEs if it can't find the classloader of a class
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Key: MAPREDUCE-3965
URL: https://issues.apache.org/jira/browse/MAPREDUCE-3965
Project: Hadoop Map/Reduce
Issue Type: Bug
Environment: Setting up a job under Groovy
Reporter: Steve Loughran
Priority: Minor
I never knew that classes may not have classloaders, but it turns out they can -in which case Object.getClass().getClassLoader() will be null "This method will return null in such implementations if this class was loaded by the bootstrap class loader.""
When this (rare) situation arises, {{JobConf.findContainingJar()}} NPEs, when failing with a slightly more useful error message would be preferred.
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