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http://jira.codehaus.org/browse/MINDEXER-18?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=262076#action_262076
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Tamás Cservenák edited comment on MINDEXER-18 at 3/31/11 7:38 AM:
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While Maven Indexer runs on Java 1.5, this change made it build-able with Java
1.6 only, since TrueZip library is Java6.
Meaning, while running Maven Indexer on Java 1.5, this fix is not usable, since
JVM will refuse to load TrueZip classes but the library will work as expected.
Build now contains animal sniffer plugin to ensure JVM 1.5 compatibility.
was (Author: cstamas):
While Maven Indexer runs on Java 1.5, this change made it build-able with
Java 1.6 only, since TrueZip library is Java6.
Meaning, while running Maven Indexer on Java 1.5, this fix is not usable, since
JVM will refuse to load TrueZip classes.
> Indexer is OOM prone while indexing large ZIP files
> ---------------------------------------------------
>
> Key: MINDEXER-18
> URL: http://jira.codehaus.org/browse/MINDEXER-18
> Project: Maven Indexer
> Issue Type: Improvement
> Affects Versions: 4.0.0
> Reporter: Tamás Cservenák
> Assignee: Tamás Cservenák
> Fix For: 4.1.0
>
>
> Indexer is OOM prone while indexing large ZIP files.
> Users reported that indexer tends to OOM while indexing huge (400MB+) WAR and
> other ZIP packed files.
> This is most likely related to JVM NIO bug:
> http://bugs.sun.com/bugdatabase/view_bug.do?bug_id=6280693
> Doing ZIP bencharks, searching for alternative ZIP solutions
> https://github.com/cstamas/zip-benchmarks
> More details:
> https://issues.sonatype.org/browse/NEXUS-4100
> Solution: Indexer accesses ZIP files over newly introduced ZipFacade, not
> directly using Java's ZipFile anymore. This facade "decides" what
> implementation should be used. Benchmarking showed Java's ZipFile as the
> fastest one, but is OOM prone.
> Next one by speed is TrueZip, but is slower since it's pure java.
> The facade on ZIP files bigger than 100MB will use TrueZip, and on smaller
> Java's ZIP solution, the threshold is configurable. See NEXUS-4100 for more.
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