Setup Heap Limits for JDeveloper 12c/11g

The reasons JDeveloper can run out of memory include heap limits and large files.

Heap Limits

Files that control the amount of memory afforded to the JVM for JDeveloper upon startup, relative to the jdeveloper/ide/bin/ directory, include:

• jdev.conf
• ide.conf

Update these files as follows:

1. Quit JDeveloper.
2. Edit ide.conf.
3. Append the following

   AddVMOption -Xms256M
   AddVMOption -Xmx1024M
   

4. Edit jdev.conf.
5. Find the AddVMOption for the "heap size."
6. Change the values as follows:

   AddVMOption -Xmx1024M
   AddVMOption -XX:MaxPermSize=1024M