JDeveloper 10.1.3.x: Restore corrupted window layout

If you have problems because of your ide windowlayout is corrupted and you would like to restore it, then perform the following steps:

1. close JDeveloper
2. delete this file:
   $ rm -rf your_jdev_home/system/oracle.ide.10.1.3.42.70/windowinglayout.xml

   This forces JDeveloper to revert back to the default layout upon next start.

3. restart JDeveloper

Now JDeveloper will show up with the default window layout.

corrupted layout (before):

restored default layout (after):