• Calling org.aspectj.lang.ProceedingJoinPoint#proceed is necessary, otherwise the call won't reach the target.
• Returning the result value (typed java.lang.Object) of that call is necessary, otherwise the return value will never reach the original caller.

However, the following two conditions almost always indicate a coding error:

• The signature for the @Around method does not have ProceedingJoinPoint as the first argument: in this case, it's impossible for the call to reach the target.
• The signature for the @Around method does not have Object as a return type: in this case, the return value of the target method is always lost.