Bug 30412 ClassCastException selecting package in java browsing perspective
Build: I20030122 I have the java browsing perspective open. I selected a package in the packages view, and there was an error trying to open the type browsing view. I can't seem to reproduce it, but hopefully the stack trace will be useful. The result was that the types view could not be initialized (the view contained an error message saying it could not be created.
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/browsing/JavaBrowsingPart.java
}
	void adjustInputAndSetSelection(IJavaElement je) {	
			
		IJavaElement elementToSelect= getSuitableJavaElement(findElementToSelect(je));
		IJavaElement newInput= findInputForJavaElement(je);
		if (elementToSelect == null && !isValidInput(newInput))
			
			setInput(null);
		else if (elementToSelect == null || getViewer().testFindItem(elementToSelect) == null) {
			
			setInput(newInput);
			
			elementToSelect= getSuitableJavaElement(elementToSelect);
		}
		
		if (elementToSelect != null && elementToSelect.exists())
			setSelection(new StructuredSelection(elementToSelect), true);
		else
			setSelection(StructuredSelection.EMPTY, true);
	}
	/**
	 * Finds the closest Java element which can be used as input for
	 * this part and has the given Java element as child
	 * 
	 * @param 	je 	the Java element for which to search the closest input
	 * @return	the closest Java element used as input for this part
	 */
	protected IJavaElement findInputForJavaElement(IJavaElement je) {
		if (je == null || !je.exists())