[jboss-jira] [JBoss JIRA] Created: (JASSIST-33) Javassist gets confused when creating method wrappers for fields that exist in the package name

[Kabir Khan (JIRA)]

Javassist gets confused when creating method wrappers for fields that exist in the package name
-----------------------------------------------------------------------------------------------

                 Key: JASSIST-33
                 URL: http://jira.jboss.com/jira/browse/JASSIST-33
             Project: Javassist
          Issue Type: Bug
            Reporter: Kabir Khan
         Assigned To: Shigeru Chiba


Hi Chiba,

There is a problem with weaving a class:



package org.jboss.test.aop.regression.jbaop398nosuchfield;


public class POJO
{
   private static String org = "Fail";

   public int method()
   {
      return 0;
   }

   //Want to weave in this method
   public String org_r_aop()
   {
      return org.jboss.test.aop.regression.jbaop398nosuchfield.POJO.org;
   }
}

We get this stack trace:

javassist.CannotCompileException: [source error] no such field: jboss
    at javassist.CtBehavior.setBody(CtBehavior.java:364)
    at javassist.CtBehavior.setBody(CtBehavior.java:333)
    at org.jboss.aop.instrument.OptimizedFieldAccessTransformer.buildWrappers(OptimizedFieldAccessTransformer.java:278)
    at org.jboss.aop.instrument.OptimizedFieldAccessTransformer.doBuildFieldWrappers(OptimizedFieldAccessTransformer.java:100)
    at org.jboss.aop.instrument.FieldAccessTransformer.buildFieldWrappers(FieldAccessTransformer.java:102)
    at org.jboss.aop.instrument.Instrumentor.transform(Instrumentor.java:724)
    at org.jboss.aop.ClassicWeavingStrategy.translate(ClassicWeavingStrategy.java:107)
    at org.jboss.aop.AspectManager.translate(AspectManager.java:916)
    at org.jboss.aop.AspectManager.transform(AspectManager.java:859)
    at org.jboss.aop.standalone.AOPTransformer.aspectTransform(AOPTransformer.java:88)
    at org.jboss.aop.standalone.AOPTransformer.transform(AOPTransformer.java:75)
    at sun.instrument.TransformerManager.transform(TransformerManager.java:122)
    at sun.instrument.InstrumentationImpl.transform(InstrumentationImpl.java:155)
    at java.lang.ClassLoader.defineClass1(Native Method)
    at java.lang.ClassLoader.defineClass(ClassLoader.java:620)
    at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:124)
    at java.net.URLClassLoader.defineClass(URLClassLoader.java:260)
    at java.net.URLClassLoader.access$100(URLClassLoader.java:56)
    at java.net.URLClassLoader$1.run(URLClassLoader.java:195)
    at java.security.AccessController.doPrivileged(Native Method)
    at java.net.URLClassLoader.findClass(URLClassLoader.java:188)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:306)
    at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:268)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:251)
    at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:319)
    at org.jboss.test.aop.regression.jbaop398nosuchfield.SimpleTestCase.test(SimpleTestCase.java:51)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
    at java.lang.reflect.Method.invoke(Method.java:585)
    at junit.framework.TestCase.runTest(TestCase.java:164)
    at junit.framework.TestCase.runBare(TestCase.java:130)
    at junit.framework.TestResult$1.protect(TestResult.java:106)
    at junit.framework.TestResult.runProtected(TestResult.java:124)
    at junit.framework.TestResult.run(TestResult.java:109)
    at junit.framework.TestCase.run(TestCase.java:120)
    at junit.framework.TestSuite.runTest(TestSuite.java:230)
    at junit.framework.TestSuite.run(TestSuite.java:225)
    at junit.framework.TestSuite.runTest(TestSuite.java:230)
    at junit.framework.TestSuite.run(TestSuite.java:225)
    at org.eclipse.jdt.internal.junit.runner.junit3.JUnit3TestReference.run(JUnit3TestReference.java:128)
    at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)
    at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:460)
    at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:673)
    at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:386)
    at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:196)
Caused by: compile error: no such field: jboss
    at javassist.compiler.MemberResolver.lookupField(MemberResolver.java:302)
    at javassist.compiler.MemberResolver.lookupFieldByJvmName(MemberResolver.java:288)
    at javassist.compiler.TypeChecker.fieldAccess(TypeChecker.java:829)
    at javassist.compiler.TypeChecker.atFieldRead(TypeChecker.java:770)
    at javassist.compiler.TypeChecker.atExpr(TypeChecker.java:571)
    at javassist.compiler.ast.Expr.accept(Expr.java:67)
    at javassist.compiler.TypeChecker.fieldAccess(TypeChecker.java:827)
    at javassist.compiler.TypeChecker.atFieldRead(TypeChecker.java:770)
    at javassist.compiler.TypeChecker.atExpr(TypeChecker.java:571)
    at javassist.compiler.ast.Expr.accept(Expr.java:67)
    at javassist.compiler.TypeChecker.fieldAccess(TypeChecker.java:827)
    at javassist.compiler.TypeChecker.atFieldRead(TypeChecker.java:770)
    at javassist.compiler.TypeChecker.atExpr(TypeChecker.java:571)
    at javassist.compiler.ast.Expr.accept(Expr.java:67)
    at javassist.compiler.TypeChecker.fieldAccess(TypeChecker.java:827)
    at javassist.compiler.TypeChecker.atFieldRead(TypeChecker.java:770)
    at javassist.compiler.TypeChecker.atExpr(TypeChecker.java:571)
    at javassist.compiler.ast.Expr.accept(Expr.java:67)
    at javassist.compiler.TypeChecker.fieldAccess(TypeChecker.java:827)
    at javassist.compiler.TypeChecker.atFieldRead(TypeChecker.java:770)
    at javassist.compiler.TypeChecker.atExpr(TypeChecker.java:571)
    at javassist.compiler.ast.Expr.accept(Expr.java:67)
    at javassist.compiler.TypeChecker.fieldAccess(TypeChecker.java:827)
    at javassist.compiler.TypeChecker.atFieldRead(TypeChecker.java:770)
    at javassist.compiler.TypeChecker.atExpr(TypeChecker.java:571)
    at javassist.compiler.ast.Expr.accept(Expr.java:67)
    at javassist.compiler.TypeChecker.fieldAccess(TypeChecker.java:827)
    at javassist.compiler.TypeChecker.atFieldRead(TypeChecker.java:770)
    at javassist.compiler.TypeChecker.atExpr(TypeChecker.java:571)
    at javassist.compiler.ast.Expr.accept(Expr.java:67)
    at javassist.compiler.CodeGen.doTypeCheck(CodeGen.java:235)
    at javassist.compiler.CodeGen.compileExpr(CodeGen.java:222)
    at javassist.compiler.CodeGen.atReturnStmnt2(CodeGen.java:591)
    at javassist.compiler.JvstCodeGen.atReturnStmnt(JvstCodeGen.java:424)
    at javassist.compiler.CodeGen.atStmnt(CodeGen.java:356)
    at javassist.compiler.ast.Stmnt.accept(Stmnt.java:49)
    at javassist.compiler.CodeGen.atMethodBody(CodeGen.java:285)
    at javassist.compiler.Javac.compileBody(Javac.java:212)
    at javassist.CtBehavior.setBody(CtBehavior.java:358)
    ... 45 more
[error] failed to transform: org.jboss.test.aop.regression.jbaop398nosuchfield.POJO.. Do verbose mode if you want full stack trace.


I think it might have to do with the field having the same name as one of the package name elements, but am not sure!

Cheers,

Kabir

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