Error occurred during initialization of VM

　　Could not reserve enough space for object heap

　　F:\JDK\1.4.2\bin>REM -hotspot      is a synonym for the “client” VM [deprecated]

　　F:\JDK\1.4.2\bin>java -hotspot -Xmx1308M -version

　　java version “1.4.2_12″

　　Java(TM) 2 Runtime Environment, Standard Edition (build 1.4.2_12-b03)

　　Java HotSpot(TM) Client VM (build 1.4.2_12-b03, mixed mode)

　　F:\JDK\1.4.2\bin>java -hotspot -Xmx1309M -version

　　Error occurred during initialization of VM

　　Could not reserve enough space for object heap

　　=====================================================================

　　F:\JDK\1.5.0\bin>java -version

　　java version “1.5.0_07″

　　Java(TM) 2 Runtime Environment, Standard Edition (build 1.5.0_07-b03)

　　Java HotSpot(TM) Client VM (build 1.5.0_07-b03, mixed mode, sharing)

　　F:\JDK\1.5.0\bin>java -client -Xmx1492M -version

　　java version “1.5.0_07″

　　Java(TM) 2 Runtime Environment, Standard Edition (build 1.5.0_07-b03)

　　Java HotSpot(TM) Client VM (build 1.5.0_07-b03, mixed mode)

　　F:\JDK\1.5.0\bin>java -client -Xmx1493M -version

　　Error occurred during initialization of VM

　　Could not reserve enough space for object heap

　　Could not create the Java virtual machine.

　　F:\JDK\1.5.0\bin>java -server -Xmx1504M -version

　　java version “1.5.0_07″

　　Java(TM) 2 Runtime Environment, Standard Edition (build 1.5.0_07-b03)

　　Java HotSpot(TM) Server VM (build 1.5.0_07-b03, mixed mode)

　　F:\JDK\1.5.0\bin>java -server -Xmx1505M -version

　　Error occurred during initialization of VM

　　Could not reserve enough space for object heap

　　Could not create the Java virtual machine.

　　F:\JDK\1.5.0\bin>REM -hotspot      is a synonym for the “client” VM [deprecated]

　　F:\JDK\1.5.0\bin>java -hotspot -Xmx1492M -version

　　java version “1.5.0_07″

　　Java(TM) 2 Runtime Environment, Standard Edition (build 1.5.0_07-b03)

　　Java HotSpot(TM) Client VM (build 1.5.0_07-b03, mixed mode)

　　F:\JDK\1.5.0\bin>java -hotspot -Xmx1493M -version

　　Error occurred during initialization of VM

　　Could not reserve enough space for object heap

　　Could not create the Java virtual machine.

　　=====================================================================

　　F:\JDK\IBM142\bin>java -version

　　java version “1.4.2″

　　Java(TM) 2 Runtime Environment, Standard Edition (build 1.4.2)

　　Classic VM (build 1.4.2, J2RE 1.4.2 IBM Windows 32 build cn1420-20040626 (JIT enabled: jitc))

　　F:\JDK\IBM142\bin>REM The default VM is client

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