steveloughran commented on issue #1791: HADOOP-16785: wasb to raise IOE if write() invoked on a closed stream URL: https://github.com/apache/hadoop/pull/1791#issuecomment-571175415 I can't replicate that in the test -but can see how it does surface...it's in the close() of a try-with-resources * If a call like out.flush() raises an IOE, try-with-resources tries to close the stream * and an exception from close() is added to the first IOE via addSuppressed * which doesn't let you add the caught exception to itself. * So if the ABFS stream close() always rethrows the same exception, you get a failure. * This could happen if there had been some previous failure and maybeRethrowException() was throwing it - the final flushInternal() call will throw the same exception, so addSuppressed will fail. I'm patching flushInternal() so that if it rethrows an exception in close, it wraps that with a covering IOE. (it still nests the inner, so there is a loop in the chain).
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