Inflater.end() method not always called in FieldsReader
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Key: LUCENE-1326
URL: https://issues.apache.org/jira/browse/LUCENE-1326
Project: Lucene - Java
Issue Type: Bug
Affects Versions: 2.3.1
Reporter: Robert Newson
We've just found an insidious memory leak in our own application as we did not
always call Deflater.end() and Inflater.end(). As documented here;
http://bugs.sun.com/view_bug.do?bug_id=4797189
The non-heap memory that the native zlib code uses is not freed in a timely
manner.
FieldsWriter appears safe as no exception can be thrown between the Deflater's
creation and end() as it uses a ByteArrayOutputStream
FieldsReader, however, is not safe. In the event of a DataFormatException the
call to end() will not occur.
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