Bug 4369 F2 should work even if "Hide Text Hover" is enabled
- enable "Hide Text Hover" - position the cursor on a type - press F2 observe: nothing happens although I explicitly requested JavaDoc help.
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/preferences/WorkInProgressPreferencePage.java
public static void initDefaults(IPreferenceStore store) {
		store.setDefault(ExperimentalPreference.CODE_ASSIST_EXPERIMENTAL, false);
	}
	
	/*
	 * @see PreferencePage#createControl(Composite)
	 */
	public void createControl(Composite parent) {
		super.createControl(parent);
		WorkbenchHelp.setHelp(getControl(), new DialogPageContextComputer(this, IJavaHelpContextIds.WORK_IN_PROGRESS_PREFERENCE_PAGE));
	}
	
	protected void createFieldEditors() {
		Composite parent= getFieldEditorParent();
		BooleanFieldEditor boolEditor= new BooleanFieldEditor(
			ExperimentalPreference.CODE_ASSIST_EXPERIMENTAL,
			JavaUIMessages.getString("WorkInProgressPreferencePage.codeassist.experimental"), 
			parent
        );
		addField(boolEditor);
	}
	
	/*
	 * @see IWorkbenchPreferencePage#init(IWorkbench)
	 */
	public void init(IWorkbench workbench) {
	}
	
}