Bug 7540 JDT Type hierarchy "Lock view ..." doen't work always
If the "Lock view and show members in hierarchy" is selected before any method is selected in method pane, the class pane isn t updated, if a method is selected afterwards. Selecting a method and select "Lock view..." works as expected
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/typehierarchy/TypeHierarchyViewPart.java
return fInputElement;
	}			
		
	/**
	 * Sets the input to a new element.
	 */	
	public void setInputElement(IJavaElement element) {
		if (element != null) {
			if (element instanceof IMember) {
				ICompilationUnit cu= ((IMember) element).getCompilationUnit();
				if (cu != null && cu.isWorkingCopy()) {
					element= cu.getOriginal(element);
					if (!element.exists()) {
						MessageDialog.openError(getSite().getShell(), TypeHierarchyMessages.getString("TypeHierarchyViewPart.error.title"), TypeHierarchyMessages.getString("TypeHierarchyViewPart.error.message"));
						return;
					}
				}
				if (element.getElementType() == IJavaElement.METHOD || element.getElementType() == IJavaElement.FIELD || element.getElementType() == IJavaElement.INITIALIZER) {
					element= ((IMember) element).getDeclaringType();
				}
			}
		}	
		if (element != null && !element.equals(fInputElement)) {
			addHistoryEntry(element);
		}
			
		updateInput(element);
	}
	
	/**