[antlr-interest] Help! I need a hint about where to start debugging this...

[John Ridgway]

Try using a larger heap; e.g.:
   java -Xmx256M org.antlr.Tool ...
if that doesn't do it then I don't know.

I needed to increase the size to handle the Java 1.5 grammar (with  
AST rewrites).

Peace
- John


On Nov 8, 2007, at 10:02 PM, Austin Hastings wrote:

> Howdy, squad.
>
> I'm getting this failure during ANTLR processing of a fairly small  
> grammar. Obviously I've done something wrong, but I have no idea  
> what. Can anybody point me at a place to start looking?
>
> =Austin
>
>
>  [antlr3] error(10):  internal error: Can't get property  
> javaCompressedTransition using method get/ 
> isJavaCompressedTransition from org.antlr.analysis.DFA instance :  
> java.lang.OutOfMemoryError: Java heap space
>   [antlr3] java.util.ArrayList.<init>(ArrayList.java:112)
>   [antlr3] org.antlr.analysis.DFA.getRunLengthEncoding(DFA.java:423)
>   [antlr3] org.antlr.analysis.DFA.getJavaCompressedTransition 
> (DFA.java:399)
>   [antlr3] sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
>   [antlr3] sun.reflect.NativeMethodAccessorImpl.invoke 
> (NativeMethodAccessorImpl.java:39)
>   [antlr3] sun.reflect.DelegatingMethodAccessorImpl.invoke 
> (DelegatingMethodAccessorImpl.java:25)
>   [antlr3] java.lang.reflect.Method.invoke(Method.java:597)
>   [antlr3] org.antlr.stringtemplate.language.ASTExpr.invokeMethod 
> (ASTExpr.java:563)
>   [antlr3]  
> org.antlr.stringtemplate.language.ASTExpr.rawGetObjectProperty 
> (ASTExpr.java:513)
>   [antlr3]  
> org.antlr.stringtemplate.language.ASTExpr.getObjectProperty 
> (ASTExpr.java:420)
>   [antlr3]  
> org.antlr.stringtemplate.language.ActionEvaluator.attribute 
> (ActionEvaluator.java:346)
>   [antlr3] org.antlr.stringtemplate.language.ActionEvaluator.expr 
> (ActionEvaluator.java:131)
>   [antlr3]  
> org.antlr.stringtemplate.language.ActionEvaluator.templateApplication( 
> ActionEvaluator.java:211)
>   [antlr3] org.antlr.stringtemplate.language.ActionEvaluator.expr 
> (ActionEvaluator.java:121)
>   [antlr3] org.antlr.stringtemplate.language.ActionEvaluator.action 
> (ActionEvaluator.java:79)
>   [antlr3] org.antlr.stringtemplate.language.ASTExpr.write 
> (ASTExpr.java:152)
>   [antlr3] org.antlr.stringtemplate.StringTemplate.write 
> (StringTemplate.java:714)
>   [antlr3] org.antlr.stringtemplate.language.ASTExpr.write 
> (ASTExpr.java:722)
>   [antlr3] org.antlr.stringtemplate.language.ASTExpr.writeAttribute 
> (ASTExpr.java:659)
>   [antlr3] org.antlr.stringtemplate.language.ActionEvaluator.action 
> (ActionEvaluator.java:81)
>   [antlr3] org.antlr.stringtemplate.language.ASTExpr.write 
> (ASTExpr.java:152)
>   [antlr3] org.antlr.stringtemplate.StringTemplate.write 
> (StringTemplate.java:714)
>   [antlr3] org.antlr.stringtemplate.language.ASTExpr.write 
> (ASTExpr.java:722)
>   [antlr3] org.antlr.stringtemplate.language.ASTExpr.writeAttribute 
> (ASTExpr.java:659)
>   [antlr3] org.antlr.stringtemplate.language.ActionEvaluator.action 
> (ActionEvaluator.java:81)
>   [antlr3] org.antlr.stringtemplate.language.ASTExpr.write 
> (ASTExpr.java:152)
>   [antlr3] org.antlr.stringtemplate.StringTemplate.write 
> (StringTemplate.java:714)
>   [antlr3] org.antlr.codegen.CodeGenerator.write(CodeGenerator.java: 
> 1132)
>   [antlr3] org.antlr.codegen.Target.genRecognizerFile(Target.java:94)
>   [antlr3] org.antlr.codegen.CodeGenerator.genRecognizer 
> (CodeGenerator.java:439)
>   [antlr3] org.antlr.Tool.processGrammar(Tool.java:347)
>   [antlr3] org.antlr.Tool.process(Tool.java:311)
>