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

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 Fix For: 3.11.0.GA Attachments: Sample.java, SampleClass.java 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