i need to finde PDE UI and, i was looking llike for 2 days,
I migrated java ide and java ee ide of eclipse.
I have Eclipse Java EE IDE 4.4(Luna).
I need all of them on same instalation.
In Eclipse open Help > Install New Software
Select Luna - http://download.eclipse.org/releases/luna in the Work with section.
Open the General Purpose Tools section and check Eclipse Plug-in Development Environment.
Click Next to start the install.