Added TransactionInterceptorTests.

org.springframework.integration/src/main/java/org/springframework/integration/handler/AbstractMessageHandlerAdapter.java

@@ -104,11 +104,11 @@ public abstract class AbstractMessageHandlerAdapter extends AbstractMethodInvoki
 		}
 		catch (InvocationTargetException e) {
 			throw new MessageHandlingException(message, "Handler method '"
-					+ this.getMethod() + "' threw an Exception.", e.getTargetException());
+					+ this.getMethodName() + "' threw an Exception.", e.getTargetException());
 		}
 		catch (Throwable e) {
 			throw new MessageHandlingException(message, "Failed to invoke handler method '"
-					+ this.getMethod() + "' with arguments: " + ObjectUtils.nullSafeToString(args), e);
+					+ this.getMethodName() + "' with arguments: " + ObjectUtils.nullSafeToString(args), e);
 		}
 	}
 

org.springframework.integration/src/main/java/org/springframework/integration/util/AbstractMethodInvokingAdapter.java

@@ -74,6 +74,10 @@ public abstract class AbstractMethodInvokingAdapter implements MethodInvoker, In
 		this.methodName = methodName;
 	}
 
+	protected String getMethodName() {
+		return this.methodName;
+	}
+
 	public void setOrder(int order) {
 		this.order = order;
 	}
@@ -102,6 +106,7 @@ public abstract class AbstractMethodInvokingAdapter implements MethodInvoker, In
 					throw new ConfigurationException("An ambiguity exists between the 'method' and 'methodName' properties. " +
 							"Note that only one of them is required, but if both are provided they must match.");
 				}
+				this.methodName = this.method.getName();
 				this.invoker = new DefaultMethodInvoker(this.object, this.method);
 			}
 			else {