[ http://issues.apache.org/jira/browse/LUCENE-669?page=all ]
Michael Busch updated LUCENE-669:
---------------------------------
Attachment: (was: FSDirectory_close_file_patch.patch)
> finalize()-methods of FSDirectory.FSIndexInput and FSDirectory.FSIndexOutput
> try to close already closed file
> -------------------------------------------------------------------------------------------------------------
>
> Key: LUCENE-669
> URL: http://issues.apache.org/jira/browse/LUCENE-669
> Project: Lucene - Java
> Issue Type: Bug
> Components: Store
> Reporter: Michael Busch
> Assigned To: Michael Busch
> Priority: Trivial
> Attachments: FSDirectory_close_file2.patch
>
>
> Hi all,
> I found a small problem in FSDirectory: The finalize()-methods of
> FSDirectory.FSIndexInput and FSDirectory.FSIndexOutput try to close the
> underlying file. This is not a problem unless the file has been closed before
> by calling the close() method. If it has been closed before, the finalize
> method throws an IOException saying that the file is already closed. Usually
> this IOException would go unnoticed, because the GarbageCollector, which
> calls finalize(), just eats it. However, if I use the Eclipse debugger the
> execution of my code will always be suspended when this exception is thrown.
> Even though this exception probably won't cause problems during normal
> execution of Lucene, the code becomes cleaner if we apply this small patch.
> Might this IOException also have a performance impact, if it is thrown very
> frequently?
> I attached the patch which applies cleanly on the current svn HEAD. All
> testcases pass and I verfied with the Eclipse debugger that the IOException
> is not longer thrown.
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