[rvm-research] Jikes Setup

I'm currently trying to follow the Quick Start guide at this link<http://jikesrvm.org/Quick+Start+Guide> and I'm getting an issue at instruction 4 of the quick start guide (the ant command) with this error:

...
build-bootimage:
     [echo] Building bootimage. Output redirected to : /home/csse/jikesrvm-3.1.2/target/prototype-opt_ia32-linux/BootImageWriterOutput.txt
     [echo] MMTk properties = /home/csse/jikesrvm-3.1.2/build/mmtk/default.properties
     [java] Java Result: 1
     [echo] BootImageCompiler: init (opt compiler)
     [echo] writing the lock field.
     [echo] writing the lock field.
     [echo] writing the lock field.
     [echo] writing the lock field.
     [echo] writing the lock field.
     [echo] Exception in thread "main" java.lang.IllegalArgumentException: Comparison method violates its general contract!
     [echo]     at java.util.TimSort.mergeLo(TimSort.java:747)
     [echo]     at java.util.TimSort.mergeAt(TimSort.java:483)
     [echo]     at java.util.TimSort.mergeCollapse(TimSort.java:410)
     [echo]     at java.util.TimSort.sort(TimSort.java:214)
     [echo]     at java.util.TimSort.sort(TimSort.java:173)
     [echo]     at java.util.Arrays.sort(Arrays.java:659)
     [echo]     at org.jikesrvm.tools.bootImageWriter.BootImageWriter.spaceReport(BootImageWriter.java:1193)
     [echo]     at org.jikesrvm.tools.bootImageWriter.BootImageWriter.main(BootImageWriter.java:1090)

BUILD FAILED
/home/csse/jikesrvm-3.1.2/build.xml:1542: The following error occurred while executing this line:
/home/csse/jikesrvm-3.1.2/build.xml:1551: Failed to write bootimage.
...

I'm running Ubuntu 12.10 x32 if that helps. Let me know if I can provide more info.

Rich

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