Bug 28575 Hierarchy view updates items twice [type hierarchy]
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/typehierarchy/TypeHierarchyViewPart.java
} else {
			Control viewerControl= getCurrentViewer().getControl();
			if (viewerControl != null && !viewerControl.isDisposed()) {
				viewerControl.setFocus();
			}
			getCurrentViewer().setSelection(new StructuredSelection(member), true);
		}	
	}	
	/**
	 * @deprecated
	 */	
	public IType getInput() {
		if (fInputElement instanceof IType) {
			return (IType) fInputElement;
		}
		return null;
	}
	
	/**
	 * Sets the input to a new type
	 * @deprecated 
	 */
	public void setInput(IType type) {
		setInputElement(type);
	}	
	
	/**
	 * Returns the input element of the type hierarchy.
	 * Can be of type <code>IType</code> or <code>IPackageFragment</code>
	 */