Daniel Templeton created HADOOP-12726:
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Summary: Unsupported operations should throw
UnsupportedOperationException
Key: HADOOP-12726
URL: https://issues.apache.org/jira/browse/HADOOP-12726
Project: Hadoop Common
Issue Type: Improvement
Components: fs
Affects Versions: 2.7.1
Reporter: Daniel Templeton
Assignee: Daniel Templeton
In the {{FileSystem}} implementation classes, unsupported operations throw
{{new IOException("Not supported")}}, which makes it needlessly difficult to
distinguish an actual error from an unsupported operation. They should instead
throw {{new UnsupportedOperationException()}}.
It's possible that this anti-idiom is used elsewhere in the code base. This
JIRA should include finding and cleaning up those instances as well.
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