code: @Override
      protected boolean doesStaticFactoryReturnNeedToBeWatched(String clsName, String methodName, String signature) {
          return collectionFactoryMethods.contains(new FQMethod(clsName, methodName, signature));
      }
docs: implements the MissingMethodsDetector to determine whether this factory-like method returns a collection
  
  @param clsName
  the clsName the class name of the factory
  @param methodName
  the method name of the factory
  @param signature
  the signature of the factory method
  
  @return whether this class is a collection