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There is a JVM crasher bug which is affecting code using Apache commons HTTPClient. A reproducer is available at https://github.com/rholder/jvm-loop-unswitching-bug.


I believe that the crash has been reported upstream into the Oracle Java bug database, but I cannot find a reference to it. It affects both Oracle Java and OpenJDK.



To reproduce download the code from https://github.com/rholder/jvm-loop-unswitching-bug, then run "./gradlew build". JVM crashes will occur during the test.

As noted on the github page, adding -XX:-LoopUnswitching stops the problem occurring.

The upstream bug is http://bugs.sun.com/view_bug.do?bug_id=8021898

A fix is being worked on according to http://mail.openjdk.java.net/pipermail/hotspot-dev/2013-August/010482.html

This request was not resolved in time for the current release.
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According to http://bugs.java.com/view_bug.do?bug_id=8025398, it is fixed in Oracle 1.7u60

Tests in comment 1 pass with java-1.7.0-openjdk-1.7.0.65-2.5.1.2.el7_0.x86_64

Thanks for confirming! Closing this one.