J2SE 5.0 assures a significant increase in scalability and performance by improving the startup time and reducing the amount of memory used Java 2 runtime environment.For eg:the introduction of the class,data sharing in the Hotspot Java virtual machine (JVM)improves the startup time by loading the core classes from the jar files into,a shared archive among multiple JVM processes.In the earlier version,the data was replicated in each JVM instance.
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