How to allocate more memory? java.lang.OutOfMemoryError: Java heap space-CodePudding

System: Ubuntu 18.04.6 LTS, Intel Core i9-9900K, 128 GB DDR4 RAM

I am supposed to run this line:

./bin/jre/bin/java -cp lib/fcc-deploy-archive.jar de.fiskal.connector.init.UpdateCLIApplication

I get this error message after 9 seconds:

java.lang.OutOfMemoryError: Java heap space
    at java.util.Arrays.copyOf(Arrays.java:3236) ~[?:1.8.0_275]

I tried to allocate (alot) more memory by using the -XmX like this:

./bin/jre/bin/java -Xmx64g -cp lib/fcc-deploy-archive.jar de.fiskal.connector.init.UpdateCLIApplication

How can I test if the option can be set at all? What else could be the problem here?

CodePudding user response：

Following is for Eclipse

Right mouse click on

Run As - Run Configuration - Arguments - Vm Arguments, then add this

-Xmx2048m

CodePudding user response：

as stated already here you can use the -Xms and -Xmx parameters to allocate more memory to the heap of the JVM, but keep in mind that if your machine doesn't have the amount of RAM that you provided in these parameters it will not work.