How to set the -Xmx when start running a jar file?

How to set the -Xmx when start running a jar file?

To set the maximum heap size (-Xmx) when running a JAR file in Java, you can specify the -Xmx option followed by the desired memory size as a command-line argument when you run the JAR file using the java command. Here's how you can do it:

java -Xmx512m -jar YourJarFile.jar

In this example:

  • -Xmx512m sets the maximum heap size to 512 megabytes (MB). You can replace 512m with the desired amount of memory in the appropriate format (e.g., 2g for 2 gigabytes).

  • -jar specifies that you are running a JAR file.

  • YourJarFile.jar should be replaced with the actual name of your JAR file.

By specifying -Xmx in this manner, you configure the maximum heap size for your Java application when you execute the JAR file. Adjust the memory size according to your application's requirements.

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