Bug 329184 Detached view that is an activation target candidate can prevent perspective switching
1. Detach the 'Outline' view. 2. Window > Open Perspective > Debug 3. Window > Open Perspective > Java 4. The perspective switch doesn't actually happen. You see the 'Debug' perspective's content with an 'Outline' view detached. Closing the 'Outline' view in the 'Debug' perspective will workaround this problem.
tests/org.eclipse.e4.ui.tests/src/org/eclipse/e4/ui/tests/application/EPartServiceTest.java
testSaveAll_NoHandlers(true, new boolean[] { true, false },
				new boolean[] { true, true });
	}
	public void testSaveAll_NoHandlers_T_TF_TF() {
		testSaveAll_NoHandlers(true, new boolean[] { true, false },
				new boolean[] { true, false });
	}
	public void testSaveAll_NoHandlers_T_TF_FT() {
		testSaveAll_NoHandlers(true, new boolean[] { true, false },
				new boolean[] { false, true });
	}
	public void testSaveAll_NoHandlers_T_TF_FF() {
		testSaveAll_NoHandlers(true, new boolean[] { true, false },
				new boolean[] { false, false });
	}
	public void testSaveAll_NoHandlers_T_FT_TT() {
		testSaveAll_NoHandlers(true, new boolean[] { false, true },
				new boolean[] { true, true });
	}
	public void testSaveAll_NoHandlers_T_FT_TF() {
		testSaveAll_NoHandlers(true, new boolean[] { false, true },
				new boolean[] { true, false });
	}
	public void testSaveAll_NoHandlers_T_FT_FT() {
		testSaveAll_NoHandlers(true, new boolean[] { false, true },
				new boolean[] { false, true });
	}
	public void testSaveAll_NoHandlers_T_FT_FF() {
		testSaveAll_NoHandlers(true, new boolean[] { false, true },
				new boolean[] { false, false });