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[FIXED HUDSON-2373] Modified to work with Maven 2.1. Sorry for a long delay, folks. This change will be in 1.305.

We basically need an ability to feed different components.xml depending on Maven's version (which will be read by DefaultComponentDiscoverer in Plexus.) The implementation in this fix is hacky, and based on placing one more jar in front of the classpath when run on Maven 2.1, while maven-interceptor still contains the default components.xml for 2.0.x.

Ideally 2.0.x components.xml should move to its own jar and so that we can switch between them, as opposed to pass in extra jar only when it's Maven 2.1.

We'll see how Maven 3.0 works with this regard.

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error message improvement after seeing http://www.nabble.com/Native-maven-support-requires-Java-1.5-or-later-td20929449.html

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attempting to fix the performance problem in artifact archiving. Discovered on Sun's deployment, in the "glassfish-v3-main-publisher" job by Harsha.

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FilterOutputStream is evil.

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I spent a good part of yesterday afternoon to track down this problem. I first attached Visual Studio to the hanging JVM. While I can see the JVM source code and Windows API symbols all right, I couldn't figure out how to relate back the code produced by JIT to its Java, so this made the debugging very hard.

What I observed was that Maven's main thread seems to be blocked in WaitForSingleObject kernel API, but I can't figure out what handle it's blocking on. This call appears to come directly from JIT-ed Java code.

The problem disappears if I enable Java debugger support, or if I attach jconsole. So this cannot be a plain Java-level deadlock.

So after that much work, I still coudldn't figure out the root cause.


But I took the advice from mriem@dev.ajva.net anyway, and modified the remoting to use a separate TCP socket, instead of stdin/stdout. This is useful anyway, because sometimes JVM writes out to stdout and that breaks the whole set up, which was one of the known issues.

This commit brings in this change, and in the limited testing so far, this appears to work. So let's hope that it fixes the problem once and for all.


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