DaCapo antlr fails on ARM

I'm using JamVM 1.5.4 on Fedora ARM (with GNU classpath 0.98).

[sr@fedora-arm dacapo]$ ~/temp/jam/bin/jamvm -jar dacapo-2006-10-MR2.jar -s small antlr
===== DaCapo antlr starting =====
Running antlr on grammar antlr/java.g
ANTLR Parser Generator Version 2.7.2 1989-2003 jGuru.com

#$%%*&@# internal error: java.lang.ArrayIndexOutOfBoundsException: -8
[complain to nearest government official
or send hate-mail to parrt@jguru.com;
please send stack trace with report.]

java.lang.ArrayIndexOutOfBoundsException: -8
at java.lang.Long.toString(Long.java:210)
at java.lang.AbstractStringBuffer.append(AbstractStringBuffer.java:456)
at java.lang.StringBuffer.append(StringBuffer.java:447)
at antlr.collections.impl.BitSet.toStringOfWords(BitSet.java:439)
at antlr.JavaCodeGenerator.genBitSet(JavaCodeGenerator.java:1322)
at antlr.JavaCodeGenerator.genBitsets(JavaCodeGenerator.java:1301)
at antlr.JavaCodeGenerator.gen(JavaCodeGenerator.java:746)
at antlr.ParserGrammar.generate(ParserGrammar.java:28)
at antlr.JavaCodeGenerator.gen(JavaCodeGenerator.java:110)
at antlr.Tool.doEverything(Tool.java:254)
at antlr.Tool.main(Tool.java:399)
at dacapo.antlr.AntlrHarness.iterate(AntlrHarness.java:71)
at dacapo.Benchmark.run(Benchmark.java:126)
at dacapo.TestHarness.runBenchmark(TestHarness.java:302)
at dacapo.TestHarness.main(TestHarness.java:242)
at Harness.main(Harness.java:5)
at java.lang.reflect.VMMethod.invoke(Native Method)
at java.lang.reflect.Method.invoke(Method.java:327)
at jamvm.java.lang.JarLauncher.main(JarLauncher.java:50)
Digest validation failed for stderr.log, expecting 0xdad1e41f6321fe17f7fcb73a790bedd69a777d41 found 0xd299f30afe8bf100015ab780794d41a2b5f6c523
Digest validation failed for JavaTokenTypes.java, expecting 0x531c7a3bdc41185f7db175cfe216d13b8a9bae0a found 0x<File not found>
Digest validation failed for JavaTokenTypes.txt, expecting 0x9645d441047a61dfc4c0ab6e4fa66f74d66cac17 found 0x<File not found>
===== DaCapo antlr FAILED =====
Validation FAILED for antlr small