From: arne@vajhoej.dk   
      
   On 2/24/2025 3:23 PM, Lawrence D'Oliveiro wrote:   
   >> The decision to implement generics in a backwards compatible way in Java   
   >> 5 had some immediate benefits, but we are also paying the price today.   
   >   
   > It seemed to be done to maintain backward binary compatibility with older   
   > bytecode that could not be recompiled. Was there a lot of such bytecode? I   
   > never realized ...   
      
   It was not just a binary compatibility for already compiled   
   byte code. It would have impacted the ability to recompile   
   existing source code as well.   
      
   Yes - lots of code.   
      
   Java got generics in its 6th version (1.0, 1.1, 1.2, 1.3, 1.4, 1.5) and   
   implemented generics in a way compatible with existing collections.   
      
   C#/.NET got generics in its 3rd version (1.0, 1.1, 2.0) and implemented   
   generics in a way that required new collections to be added.   
      
   Arne   
      
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