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What is The Maximum JVM Heap Size (-Xmx) Value To Set In jvmOptions Parameter?

C:\Users\denilson>java -Xmx1520m -version
java version "1.4.2_14"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.4.2_14-b05)
Java HotSpot(TM) Client VM (build 1.4.2_14-b05, mixed mode)


C:\Users\denilson>java -Xmx1530m -version
Error occurred during initialization of VM
Could not reserve enough space for object heap
Could not create the Java virtual machine.
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