Subj : Is rhino's Codegen.generateCode() method thread safe?
To   : mozilla-jseng@mozilla.org
From : tomi@osaka.niss.co.jp (Tomita Tomohiro)
Date : Wed Mar 12 2003 04:15 am

Hi,
I have some question about rhino.

I'm using rhino in multi thread.
Is the Codegen.generateCode() method thread safe?
#I have no time to trace or debug rhino source,so I ask this ML :-)

in my enviroment(j9VM) the error occures very often as follows:
java.lang.StringIndexOutOfBoundsException
Stack trace:
   java/lang/Throwable.<init>()V
   java/lang/String.charAt(I)C
   org/mozilla/classfile/ClassFileWriter.sizeOfParameters(Ljava/lang/String;)I
   org/mozilla/classfile/ClassFileWriter.add(BLjava/lang/String;Ljava/lang/String;Ljava/lang/String;Ljava/lang/String;)V
   org/mozilla/javascript/optimizer/Codegen.addStaticInvoke(Ljava/lang/String;Ljava/lang/String;Ljava/lang/String;Ljava/lang/String;)V
   org/mozilla/javascript/optimizer/Codegen.visitRegularCall(Lorg/mozilla/javascript/Node;ILorg/mozilla/javascript/Node;Z)V
   org/mozilla/javascript/optimizer/Codegen.visitCall(Lorg/mozilla/javascript/Node;ILorg/mozilla/javascript/Node;)V
   org/mozilla/javascript/optimizer/Codegen.generateCodeFromNode(Lorg/mozilla/javascript/Node;Lorg/mozilla/javascript/Node;II)V
   org/mozilla/javascript/optimizer/Codegen.generateCodeFromNode(Lorg/mozilla/javascript/Node;Lorg/mozilla/javascript/Node;II)V
   org/mozilla/javascript/optimizer/Codegen.generateCodeFromNode(Lorg/mozilla/javascript/Node;Lorg/mozilla/javascript/Node;II)V
   org/mozilla/javascript/optimizer/Codegen.generateCode(Lorg/mozilla/javascript/Node;Ljava/util/Vector;Ljava/util/Vector;Lorg/mozilla/javascript/ClassNameHelper;)Ljava/lang/String;
   org/mozilla/javascript/optimizer/Codegen.compile(Lorg/mozilla/javascript/Context;Lorg/mozilla/javascript/Scriptable;Lorg/mozilla/javascript/Node;Ljava/lang/Object;Lorg/mozilla/javascript/SecuritySupport;Lorg/mozilla/javascript/ClassNameHelper;)Ljava/lang/Object;
   org/mozilla/javascript/Context.compile(Lorg/mozilla/javascript/Scriptable;Lorg/mozilla/javascript/TokenStream;Ljava/lang/Object;Ljava/io/Reader;Z)Ljava/lang/Object;
   org/mozilla/javascript/Context.compile(Lorg/mozilla/javascript/Scriptable;Ljava/io/Reader;Ljava/lang/String;ILjava/lang/Object;Z)Ljava/lang/Object;
   org/mozilla/javascript/Context.compileReader(Lorg/mozilla/javascript/Scriptable;Ljava/io/Reader;Ljava/lang/String;ILjava/lang/Object;)Lorg/mozilla/javascript/Script;
   tomi.run()V
   java/lang/Thread.run()V

if compiling JavaScript in single thread, then it works good.

thanks
Tomohiro

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