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Steve Loughran commented on HADOOP-12726: ----------------------------------------- I'd go for an {{UnsupportedIOOperationException extends IOException}} in trunk > 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. -- This message was sent by Atlassian JIRA (v6.3.4#6332)