: A new optimization ( -XX:+DoEscapeAnalysis ) allowed the compiler to determine if an object is "escaped" (used outside a method). If it isn't, the JVM can allocate the object on the stack instead of the heap, significantly speeding up execution and reducing garbage collection overhead.
: Support was added for Windows Server 2008 SP2 and Windows Vista SP2 . J2Se 6 Update 14
: The update included enhancements to the parallel compacting collector to increase overall application throughput. Stability and Platform Support : A new optimization ( -XX:+DoEscapeAnalysis ) allowed