[antlr-interest] java.lang.OutOfMemoryError: Java heap space

[Jim Idle]

Start ANTLRWors with:

 

-Xmx 750M

 

Or something similar. However, if your grammar is error in some way you can sometimes run out of heap space anyway. The java defaults are not enough for larger grammar s though.

 

Jim

 

From: antlr-interest-bounces at antlr.org [mailto:antlr-interest-bounces at antlr.org] On Behalf Of Diane Nkonyereza
Sent: Sunday, March 09, 2008 8:29 AM
To: ANTLR
Subject: [antlr-interest] java.lang.OutOfMemoryError: Java heap space

 

Hi,

When I run my grammar in ANTLRWorks I get the error below. It only happens when I run it for the 2nd or 3rd time. The 1st time there is no problem. For that reason I think it's nothing to do with my grammar. What's the cause of the error and how should I resolve it.

Thanks in advance,
D.


[15:22:15] 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
java.util.ArrayList.<init>(Unknown Source)
org.antlr.analysis.DFA.getRunLengthEncoding(DFA.java:423)
org.antlr.analysis.DFA.getJavaCompressedTransition(DFA.java:399)
sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
java.lang.reflect.Method.invoke(Unknown Source)
org.antlr.stringtemplate.language.ASTExpr.invokeMethod(ASTExpr.java:563)
org.antlr.stringtemplate.language.ASTExpr.rawGetObjectProperty(ASTExpr.java:513)
org.antlr.stringtemplate.language.ASTExpr.getObjectProperty(ASTExpr.java:420)
org.antlr.stringtemplate.language.ActionEvaluator.attribute(ActionEvaluator.java:346)
org.antlr.stringtemplate.language.ActionEvaluator.expr(ActionEvaluator.java:131)
org.antlr.stringtemplate.language.ActionEvaluator.templateApplication(ActionEvaluator.java:211)
org.antlr.stringtemplate.language.ActionEvaluator.expr(ActionEvaluator.java:121)
org.antlr.stringtemplate.language.ActionEvaluator.action(ActionEvaluator.java:79)
org.antlr.stringtemplate.language.ASTExpr.write(ASTExpr.java:152)
org.antlr.stringtemplate.StringTemplate.write(StringTemplate.java:714)
org.antlr.stringtemplate.language.ASTExpr.write(ASTExpr.java:722)
org.antlr.stringtemplate.language.ASTExpr.write(ASTExpr.java:742)
org.antlr.stringtemplate.language.ASTExpr.writeAttribute(ASTExpr.java:659)
org.antlr.stringtemplate.language.ActionEvaluator.action(ActionEvaluator.java:81)
org.antlr.stringtemplate.language.ASTExpr.write(ASTExpr.java:152)
org.antlr.stringtemplate.StringTemplate.write(StringTemplate.java:714)
org.antlr.stringtemplate.language.ASTExpr.write(ASTExpr.java:722)
org.antlr.stringtemplate.language.ASTExpr.writeAttribute(ASTExpr.java:659)
org.antlr.stringtemplate.language.ActionEvaluator.action(ActionEvaluator.java:81)
org.antlr.stringtemplate.language.ASTExpr.write(ASTExpr.java:152)
org.antlr.stringtemplate.StringTemplate.write(StringTemplate.java:714)
org.antlr.codegen.CodeGenerator.write(CodeGenerator.java:1132)
org.antlr.codegen.Target.genRecognizerFile(Target.java:94)
org.antlr.codegen.CodeGenerator.genRecognizer(CodeGenerator.java:439)
org.antlr.Tool.processGrammar(Tool.java:347)



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