Eclipse : Switching Perspectives Programatically

Here is how you can switch to a Perspective programatically:

Display.getDefault().asyncExec(new Runnable(){
 public void run(){
  IWorkbenchWindow w = PlatformUI.getWorkbench().getActiveWorkbenchWindow();
  IPerspectiveRegistry reg = PlatformUI.getWorkbench().getPerspectiveRegistry();
  String perspId = "id of perspective you want to switch to";
  w.getActivePage().setPerspective(reg.findPerspectiveWithId(perspId));
 }
});

If you want to for example swithc to debug perspective when your custom launch configuration is launched, put this code at the end of your launch delegate.