AspectJ and Erasure Limitation
As previously mentioned in this blog, I’m taking a programming skills course focusing on Aspect Oriented Programming (AOP) using AspectJ. I am using eclipse with the AspectJ plugin to develop, and recently came across a situation where I wanted to define a pointcut based on an object that uses generics. In attempting to do so, I got the following error in eclipse:
parameterized types not supported for this and target pointcuts (erasure limitation)
While the error puzzled me momentarily, a quick hop over to the AspectJ developer notebook sorted things out. The full description of the solution is there if you want to read, but the quick fix is easy: remove the generic identifier of whatever you are trying to match against.
For example, this is incorrect:
pointcut badPointcut(): target( List<String> );
While this is the fixed version:
pointcut goodPointcut(): target( List );
Now get back to work :)
