I was involved in some of the first non-Sun java VM implementations and spent some time at Microsoft. The quick list of major reasons: 1. competition between Mi

I was involved in some of the first non-Sun java VM implementations and spent some time at Microsoft. The quick list of major reasons: 1. competition between Microsoft and non-Microsoft camps 2. Java was far less open in the 90's than it is now 3. .Net/C# is a better language and runtime,(e.g. how it deals with native code, designed for JIT compilation from the start, created with multiple languages in mind)