[jboss-jira] [JBoss JIRA] Created: (JASSIST-83) NullPointerException in Handler#getType

[Hans-Joerg Adel (JIRA)]

NullPointerException in Handler#getType
---------------------------------------

                 Key: JASSIST-83
                 URL: https://jira.jboss.org/jira/browse/JASSIST-83
             Project: Javassist
          Issue Type: Bug
         Environment: JA version 3.4, Windows Vista and JDK 1.6.0_10
            Reporter: Hans-Joerg Adel
            Assignee: Shigeru Chiba
            Priority: Optional


Hi!

When I use ExprEditor#edit(Handler) to access a try-statement without a catch-clause I get a NullPointerException. 

To reproduce the bug, please use this source

/*--- (C) 1999-2008 Techniker Krankenkasse ---*/

package samplepackage;

import javassist.CannotCompileException;
import javassist.ClassPool;
import javassist.CtClass;
import javassist.NotFoundException;

import javassist.expr.ExprEditor;
import javassist.expr.Handler;

public class Sample {
	public static void main(String[] args) throws NotFoundException, CannotCompileException {
		ClassPool classPool = ClassPool.getDefault();
		CtClass ctClass = classPool.get("samplepackage.SampleClass");
		ctClass.instrument(new MyExprEditor());

	}

	static class MyExprEditor extends ExprEditor {
		@Override
		public void edit(Handler h) throws CannotCompileException {
			try {
				h.getType();
			} catch (NotFoundException e) {
			}
		}
	}
}



Stacktrace:
Exception in thread "main" java.lang.NullPointerException
	at javassist.bytecode.Descriptor.toCtClass(Descriptor.java:517)
	at javassist.bytecode.Descriptor.toCtClass(Descriptor.java:499)
	at javassist.expr.Handler.getType(Handler.java:76)
	at samplepackage.Sample$MyExprEditor.edit(Sample.java:25)
	at javassist.expr.ExprEditor.doit(ExprEditor.java:97)
	at javassist.CtClassType.instrument(CtClassType.java:1224)
	at samplepackage.Sample.main(Sample.java:17)

I would expect that h.getType() returns null.

I am using JA version 3.4, Windows Vista and JDK 1.6.0_10.

Cheers
Ruwen
iA Hans-Joerg Adel

-- 
This message is automatically generated by JIRA.
-
If you think it was sent incorrectly contact one of the administrators: https://jira.jboss.org/jira/secure/Administrators.jspa
-
For more information on JIRA, see: http://www.atlassian.com/software/jira