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what does method erasure mean?

 
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Hi All,

I just read in an article that for a method to compile the method signatures and method erasures should be different.

What exactly does method erasure mean?

Thanks
 
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The erasure is the method signature that you're left with after generic parameters have been erased.

Let's say you have the following two methods:
This is not allowed, because the generic parameter T gets replaced by Object during erasure, leaving the method with the exact same signature as the second method. This however *is* allowed:
The generic parameter gets replaced by String, so this method successfully overloads the one with the Object parameter.
 
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