This is a basic question.

I have code which shouldn't run on metadata beans. All metadata beans are located under metadata package.

Now,

I use reflection API to find out whether a class is located in the the metadata package.

if (newEntity.getClass().getPackage().getName().contains("metadata")) 

I use this If in several places within this code.

The question is: Should I do this once with:

boolean isMetadata = false
if (newEntity.getClass().getPackage().getName().contains("metadata")) {
   isMetadata = true;
}

C++ makes optimizations and knows that this code was already called and it won't call it again. Does JAVA makes optimization? I know reflection API is a beat heavy and I prefer not to lose expensive runtime.