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
if (getCurrentViewer().isMethodFiltering()) {
					if (changedTypes.length == 1) {
						getCurrentViewer().refresh(changedTypes[0]);
					} else {
						updateHierarchyViewer();
					}
				} else {
					getCurrentViewer().update(changedTypes, new String[] { IBasicPropertyConstants.P_TEXT, IBasicPropertyConstants.P_IMAGE } );
				}
			}
			fMethodsViewer.refresh();
		}
	}	
	
	
	/**
	 * Determines the input element to be used initially .
	 */	
	private IJavaElement determineInputElement() {
		Object input= getSite().getPage().getInput();
		if (input instanceof IJavaElement) { 
			return (IJavaElement) input;
		} 
		return null;	
	}
	
	/*
	 * @see IViewPart#init
	 */
	public void init(IViewSite site, IMemento memento) throws PartInitException {