Eclipse + GWT -> Out of memory in development mode
eclipse, gwt, ide, java, out-of-memory
Solution
If the browser application is throwing the `OutOfMemoryError`, then you don't need to change the Eclipse settings (eclipse.ini), that's only for Eclipse itself (more memory, usually faster workbench).
To increase an app's memory (any Java app launched from Eclipse), go to the `Run/Debug configurations...` in the Run menu and set the `VM arguments` on the `Arguments` tab of the app's run config:
-Xms128M -Xmx1024M -XX:MaxPermSize=256M
Problem
If I run my GWT application in eclipse in development mode and click around in the browser for some time, I always get an "out of memory" error in eclipse. My computer has 16 GB Ram, and there is never used more than 8GB. I tried several config parameters. The VM-arguments in my Run configuration contain these parameters: "-Xms8192m -Xmx8192m" Even in the eclipse.ini I tested several config parameters and now it looks like this: ``` --launcher.XXMaxPermSize 8192M -showsplash org.eclipse.platform --launcher.XXMaxPermSize 8192m --launcher.defaultAction openFile --launcher.appendVmargs -vmargs -Dosgi.requiredJavaVersion=1.6 -Xms8192m -Xmx8192m ``` But I still get the error. Is there any way to prevent this?