DO NOT REPLY [Bug 42696] OutOfMemoryError using unzip Task

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https://issues.apache.org/bugzilla/show_bug.cgi?id=42696

--- Comment #1 from David Schlosnagle <sc...@gmail.com> 2009-09-15 10:45:53 PDT ---
Created an attachment (id=24269)
 --> (https://issues.apache.org/bugzilla/attachment.cgi?id=24269)
Close zip entry input streams

I am encountering a similar issue using the unzip task on IBM AIX using Ant
1.6.5 and Java 1.5 and 1.6. The error I see is: "java.lang.OutOfMemoryError:
ZIP004:OutOfMemoryError, MEM_ERROR in inflateInit2". We are performing several
unzip tasks, including extracting a large WAR (~200MB) from a large EAR
(~500MB). We are using ANT_OPTS="-Xms384M -Xmx1024M"

I looked into the org.apache.tools.ant.taskdefs.Expand.expandFile(FileUtils,
File, File) code and it does not appear to be closing the input stream (and in
turn the java.util.zip.Inflater instance for the returned
java.util.zip.InflaterInputStream) for the zip entry, so I'm wondering if this
is part of the problem. I've attached a patch to close each zip input stream.

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