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When i use Java, in my Linux box generally i install OpenJDK using package manager. And for Windows i use Sun official downloads.
But i am not sure which JVM exactly it use? (For some memory issues). Does it use
What does it use when i use OpenJDK under linux and the default Sun download under Windows? Does all JVM available for 8bit to 64bit platforms (open source to use them or commercial)?
The answer is d) none of the above.
Both the official Java packages, and OpenJDK use Sun / Oracle’s “official” JVM, which I believe is called HotSpot. This is not J9, that’s IBM’s implementation, which you’re unlikely to use on a typical Windows or Linux box. I’ve never heard of JamVM; the only Squeak I know of is a Smalltalk implementation, which has nothing to do with Java.