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Date: Thu, 26 May 2011 18:34:54 +1000
From: Esmond Pitt <esmond.pitt@bigpond.com>
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Subject: Re: Java generics and type erasure
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On 26/05/2011 4:48 PM, Lawrence D'Oliveiro wrote:
>> No -- presumably, it would have caused problems compiling 1.4 source code
>> against 1.5's libraries, not running existing 1.4 bytecode linked to 1.5
>> libraries.
>
> In Java terms, what’s the difference?

The difference is that generic type-signatures are present in .class 
files for compilation purposes even though generics are erased to their 
lower bounds at runtime, so that the compiler can enforce the semantics 
of generics.