Index: src/main/org/jboss/aop/joinpoint/MethodInvocation.java
===================================================================
--- src/main/org/jboss/aop/joinpoint/MethodInvocation.java	(revision 82216)
+++ src/main/org/jboss/aop/joinpoint/MethodInvocation.java	(working copy)
@@ -145,10 +145,10 @@
          if (target == null)
 
             throw new IllegalArgumentException("Null target for method " + method);
-         Class<?> methodClass = method.getClass();
+         Class<?> methodClass = method.getDeclaringClass();
          Class<?> targetClass = target.getClass();
          if (methodClass.isAssignableFrom(targetClass) == false)
-            throw new IllegalArgumentException("Wrong target. " + targetClass + " for " + method);
+            throw new IllegalArgumentException("Wrong target. " + targetClass + " for " + method, t);
          ArrayList<String> expected = new ArrayList<String>();
          Class<?>[] parameterTypes = method.getParameterTypes();
          for (int i = 0; i < parameterTypes.length; ++i)
Index: src/main/org/jboss/aop/ClassAdvisor.java
===================================================================
--- src/main/org/jboss/aop/ClassAdvisor.java	(revision 82216)
+++ src/main/org/jboss/aop/ClassAdvisor.java	(working copy)
@@ -403,7 +403,7 @@
                      //   String wrappedName = ClassAdvisor.notAdvisedMethodName(clazz.getName(), methods[k].getName());
                      //   Method method = clazz.getMethod(wrappedName, methods[k].getParameterTypes());
                      Method method = getMethod(clazz, methods[k]);
-                     long hash = MethodHashing.methodHash(method);
+                     long hash = this.methodHash(method);
                      unadvisedMethods.put(hash, method);
                   }
                }
@@ -1466,7 +1466,7 @@
       {
          if (ClassAdvisor.isAdvisable(declaredMethods[i]))
          {
-            long hash = MethodHashing.methodHash(declaredMethods[i]);
+            long hash = this.methodHash(declaredMethods[i]);
             advisedMethods.put(hash, declaredMethods[i]);
             try
             {
@@ -2880,4 +2880,21 @@
          conCalledByMethodInterceptors.clear();
       }
    }
+   
+   /**
+    * Obtains a hash for the specified method 
+    * 
+    * @param method
+    * @return
+    * @throws Exception
+    */
+   protected long methodHash(Method method) throws Exception
+   {
+      long hash = MethodHashing.methodHash(method);
+      if (logger.isTraceEnabled())
+      {
+         logger.trace("Method Hash: " + hash + " / " + method);
+      }
+      return hash;
+   }
 }