Program: 151565
Project: 151565
Buggy source:
@Override public Object invoke(final Object obj,final Method proxy,final Method method,final Object[] args) throws Throwable {
  return ClassLoaders.executeIn(toLoader,new Callable<Object>(){
    @Override public Object call() throws Exception {
      try {
        try {
          if (proxy.getDeclaringClass().equals(toLoader.loadClass(ClassLoaderAdapterProxy.class.getName()))) {
            return delegate;
          }
        }
 catch (        Exception e) {
          System.out.println("String_Node_Str");
          e.printStackTrace();
        }
        Method delegateMethod=getDelegateMethod(proxy);
        List<Object> parameterValues=convertParameterValues(args,delegateMethod);
        AccessibleObject.setAccessible(new AccessibleObject[]{delegateMethod},true);
        Object result=delegateMethod.invoke(delegate,parameterValues.toArray());
        return enhanceResult(proxy,result);
      }
 catch (      Throwable e) {
        throw new ContainerException("String_Node_Str" + delegate.getClass().getName() + "String_Node_Str"+ proxy.getName()+ "String_Node_Str"+ toLoader+ "String_Node_Str",e);
      }
    }
    private Method getDelegateMethod(    final Method proxy) throws ClassNotFoundException, NoSuchMethodException {
      Method delegateMethod=null;
      try {
        List<Class<?>> parameterTypes=convertParameterTypes(proxy);
        delegateMethod=delegate.getClass().getMethod(proxy.getName(),parameterTypes.toArray(new Class<?>[parameterTypes.size()]));
      }
 catch (      ClassNotFoundException e) {
        method:         for (        Method m : delegate.getClass().getMethods()) {
          String methodName=proxy.getName();
          String delegateMethodName=m.getName();
          if (methodName.equals(delegateMethodName)) {
            Class<?>[] methodParameterTypes=proxy.getParameterTypes();
            Class<?>[] delegateParameterTypes=m.getParameterTypes();
            if (methodParameterTypes.length == delegateParameterTypes.length) {
              for (int i=0; i < methodParameterTypes.length; i++) {
                Class<?> methodType=methodParameterTypes[i];
                Class<?> delegateType=delegateParameterTypes[i];
                if (!methodType.getName().equals(delegateType.getName())) {
                  continue method;
                }
              }
              delegateMethod=m;
              break;
            }
          }
        }
        if (delegateMethod == null)         throw e;
      }
      return delegateMethod;
    }
  }
);
}

Fixed version (ground truth):
@Override public Object invoke(final Object obj,final Method proxy,final Method method,final Object[] args) throws Throwable {
  return ClassLoaders.executeIn(toLoader,new Callable<Object>(){
    @Override public Object call() throws Exception {
      try {
        try {
          if (proxy.getDeclaringClass().equals(fromLoader.loadClass(ClassLoaderAdapterProxy.class.getName()))) {
            return delegate;
          }
        }
 catch (        Exception e) {
          System.out.println("String_Node_Str");
          e.printStackTrace();
        }
        Method delegateMethod=getDelegateMethod(proxy);
        List<Object> parameterValues=convertParameterValues(args,delegateMethod);
        AccessibleObject.setAccessible(new AccessibleObject[]{delegateMethod},true);
        Object result=delegateMethod.invoke(delegate,parameterValues.toArray());
        return enhanceResult(proxy,result);
      }
 catch (      Throwable e) {
        throw new ContainerException("String_Node_Str" + delegate.getClass().getName() + "String_Node_Str"+ proxy.getName()+ "String_Node_Str"+ toLoader+ "String_Node_Str",e);
      }
    }
    private Method getDelegateMethod(    final Method proxy) throws ClassNotFoundException, NoSuchMethodException {
      Method delegateMethod=null;
      try {
        List<Class<?>> parameterTypes=convertParameterTypes(proxy);
        delegateMethod=delegate.getClass().getMethod(proxy.getName(),parameterTypes.toArray(new Class<?>[parameterTypes.size()]));
      }
 catch (      ClassNotFoundException e) {
        method:         for (        Method m : delegate.getClass().getMethods()) {
          String methodName=proxy.getName();
          String delegateMethodName=m.getName();
          if (methodName.equals(delegateMethodName)) {
            Class<?>[] methodParameterTypes=proxy.getParameterTypes();
            Class<?>[] delegateParameterTypes=m.getParameterTypes();
            if (methodParameterTypes.length == delegateParameterTypes.length) {
              for (int i=0; i < methodParameterTypes.length; i++) {
                Class<?> methodType=methodParameterTypes[i];
                Class<?> delegateType=delegateParameterTypes[i];
                if (!methodType.getName().equals(delegateType.getName())) {
                  continue method;
                }
              }
              delegateMethod=m;
              break;
            }
          }
        }
        if (delegateMethod == null)         throw e;
      }
      return delegateMethod;
    }
  }
);
}