I need to convert Java to Native code (exe) for getting best performance. Please reply if anybody knows open source tool for the same which should support Jdk1.4.2. I need it urgently. Thanks in advance.
How did you determine that the JVM does not give you enough performance? Modern JVMs include JIT compilers that translate to native code anyway, and they get pretty close to fully native code. Going with an all-native compiler (like GCJ) may take you a little bit further, but it introduces problems of its own which may negate the performance gain.