Bug 15486 Hierarchy View takes 8 minutes to start up
In my workspace I have 24 projects. In each case, the java build path contains about 20 or more jar files from a target platform which I am extending with new plugins. I have one java perspective, which contains the following views: packages, navigator, outline. In the shortcut bar, I have the tasks, search, and repository view. There are no editors open. It takes about 20 seconds to start up. If I open the JavaEditor class using Open Type.., a java edior opens on the class and the hierarchy view opens. If I close the editor, shutdown, and restart, it takes me 8 minutes to restart. If I close the hierarchy view, shutdown, and restart, it takes about 20 seconds to start up. I am now afraid to shutdown eclipse with the hierarchy view open. Please help me.
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/typehierarchy/TypeHierarchyViewPart.java
new RefactorActionGroup(this),
				new GenerateActionGroup(this),
				new JavaSearchActionGroup(this)});
		
		fActionGroups.fillActionBars(getViewSite().getActionBars());
		
		initDragAndDrop();		
	}
	/**
	 * called from ToggleOrientationAction.
	 * @param orientation VIEW_ORIENTATION_SINGLE, VIEW_ORIENTATION_HORIZONTAL or VIEW_ORIENTATION_VERTICAL
	 */	
	public void setOrientation(int orientation) {
		if (fCurrentOrientation != orientation) {
			boolean methodViewerNeedsUpdate= false;
			
			if (fMethodViewerViewForm != null && !fMethodViewerViewForm.isDisposed()
					&& fTypeMethodsSplitter != null && !fTypeMethodsSplitter.isDisposed()) {
				if (orientation == VIEW_ORIENTATION_SINGLE) {
					fMethodViewerViewForm.setVisible(false);
					enableMemberFilter(false);
					updateMethodViewer(null);
				} else {
					if (fCurrentOrientation == VIEW_ORIENTATION_SINGLE) {
						fMethodViewerViewForm.setVisible(true);
						methodViewerNeedsUpdate= true;
					}
					boolean horizontal= orientation == VIEW_ORIENTATION_HORIZONTAL;
					fTypeMethodsSplitter.setOrientation(horizontal ? SWT.HORIZONTAL : SWT.VERTICAL);
				}