I know this is not a very educating answer :-) But what about increasing 
the stacksize of the JVM?

Andreas

wirv...@beats.hu schrieb:
> Helo!
>
> I want to create a Tree Grammar from my "normal" grammar (with the method
> described in the ANTLR book), and after I corrected some obvious errors
> (remove AST operators, etc.) I got this one:
>
> Exception in thread "Thread-5" java.lang.StackOverflowError
>       at java.util.AbstractList$Itr.<init>(Unknown Source)
>       at java.util.AbstractList$ListItr.<init>(Unknown Source)
>       at java.util.AbstractList.listIterator(Unknown Source)
>       at java.util.AbstractList.listIterator(Unknown Source)
>       at org.antlr.misc.IntervalSet.add(IntervalSet.java:104)
>       at org.antlr.misc.IntervalSet.add(IntervalSet.java:93)
>       at org.antlr.misc.IntervalSet.of(IntervalSet.java:74)
>       at org.antlr.misc.IntervalSet.complement(IntervalSet.java:231)
>       at org.antlr.misc.IntervalSet.subtract(IntervalSet.java:264)
>       at org.antlr.analysis.DFAState.addReachableLabel(DFAState.java:343)
>       at org.antlr.analysis.DFAState.addNFAConfiguration(DFAState.java:254)
>       at 
> org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:633)
>       at 
> org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:756)
>       at 
> org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:709)
> ....
> and so on.
>
>
> What could be wrong? How can I "debug" this kind of errors?
>
> Thanks,
>    Zoli
>
>
>
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