How to increase the JDeveloper Heap Memory Size

When working on your critical projects using JDeveloper you sometimes suddenly end-up with the “Low Memory Warning”,Pop-up on your JDev IDE Screen.

 

  

This is due to the huge memory consumptions by the your projects on less powerful hardware resources in your system.

This issued could be resolved in the following two ways

First Procedure:

Change the config file jdev.conf in location  \jdeveloper\jdev\bin

In this file increase the memory values for the following parameters:
AddVMOption -XX:MaxPermSize=1024M

Second Procedure:

Change the config file ide.conf in location  \jdeveloper\ ide\bin to something like this

AddVMOption -Xmx1024M
AddVMOption -Xms1024M

If you want to view the heap and permgen memory statistics in your Jdeveloper (you can see these changes in right buttom screen of your Jdeveloper after restart) add the below property in  jdev.conf file (located under JDEV_INSTALL\jdev\bin\  folder)

AddVMOption -DMainWindow.MemoryMonitorOn=true

Remember:  Restart your JDeveloper now