Bug 23031 Package explorer does not update when input==package [package explorer]
From a java perspective, create a Java project with two packages (say test.package1 and test.package2). Create a couple of classes in both packages. From the package view, select test.package2 and from the context menu, open a new java window on it. Notice you only see the two classes you created in this package. Now go back to the other window, and move a class from test.package1 to test.package2. Go back to the new window, look at the package view and notice it still only displays 2 classes. Selecting refresh from the context menu does nothing. If you close the package view and open it again, then you see 3 classes.
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/packageview/PackageExplorerContentProvider.java
}
		});
	 }
	/**
1	 * Process a resource delta.
	 * 
	 * @return true if the parent got refreshed
	 */
	private boolean processResourceDelta(IResourceDelta delta, Object parent) {
		int status= delta.getKind();
		int flags= delta.getFlags();
		
		IResource resource= delta.getResource();
		
		if (resource == null)
			return false;	
			
		
		if ((status & IResourceDelta.REMOVED) != 0) {
			if (parent instanceof IPackageFragment) {
				
				postRefresh(internalGetParent(parent));
				return true;
			} else 
				postRemove(resource);
		}
		if ((status & IResourceDelta.ADDED) != 0) {
			if (parent instanceof IPackageFragment) {
				
				postRefresh(internalGetParent(parent));