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Editorial Team
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Asked: 2026-06-18T03:14:41+00:00

I am able to run a Java program through Eclipse by setting the VM

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I am able to run a Java program through Eclipse by setting the VM arguments as -Xmx1024m
-Xms256M. Now I want to run the same Java program (jar) through a .bat file in Windows. I am setting the JVM values in the file as follows

@echo off
set JAVA_OPTS="-Xmx1024m -Xms256m -XX:+HeapDumpOnOutOfMemoryError"
java -cp TA.jar com.myClass

But when I run the same program through batch (.bat in Windows XP) it throws Out of Memory error and I suspect that the JVM setting through the .bat file is not working.

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1 Answer

  1. Editorial Team

    Use the arguments directly

    java -Xmx1024m -Xms256m -XX:+HeapDumpOnOutOfMemoryError -cp TA.jar com.myClass

    You don’t need to set them at JAVA_OPTIONS. To be sure that your application is using the parameters that you want:

    • open jvisualvm that comes with java. Just type “jvisualvm” at command line if you have set java correctly at your path.
    • open the vm started to your application.
    • check under “JVM Arguments” in the “Overview” tab.

    There should be set your jvm options.

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