Eclipse Bug: Unhandled event loop exception No more handles

Question

I\'ve built a GUI using Swing and the MigLayout.

I am using Eclipse 4.2.2 (64-bit) on Windows 7 Ultimate. Every time I click back into the window to edit my code, a

Answer 1

There is a workaround: Change the Java editor to WindowBuilder.

Eclipse → Windows → Preferences → File Associations →, choose WindowBuilder Editor as Java default editor.