Bug 215159 [PropertiesView] description of last selected item stays in status line after deselection
Build ID: M20071023-1652 Steps To Reproduce: 1. use a standard java project 2. make sure the package explorer and properties view are open 3. select the "src" folder in the package explorer -> status line shows "project - src" 4. select a random property in the properties view (e.g. "path") -> status line shows "path" 5. select the "JRE System Library" in the package explorer -> status line shows "JRE System Library ... - project" 6. set focus on the (now empty) properties view -> status line shows "path" (should be empty, shouldn't it?) More information: I found this one developing a RCP using PropertyDescriptors and its setDescription(String) method. It's a cosmetic bug, but I think it won't be much work clearing the status line when the properties view looses all content.
bundles/org.eclipse.ui.views/src/org/eclipse/ui/views/properties/PropertySheetViewer.java
public void treeExpanded(final TreeEvent event) {
                handleTreeExpand(event);
            }
            public void treeCollapsed(final TreeEvent event) {
                handleTreeCollapse(event);
            }
        });
        
        tree.addKeyListener(new KeyAdapter() {
            public void keyReleased(KeyEvent e) {
                if (e.character == SWT.ESC) {
					deactivateCellEditor();
				} else if (e.keyCode == SWT.F5) {
					
                    setInput(getInput());
				}
            }
        });
    }
    /**
     * Update the status line based on the data of item.
     * @param item
     */
    protected void updateStatusLine(Widget item) {
    	setMessage(null);
    	setErrorMessage(null);
    	
    	
    	if (item != null) {
    		if (item.getData() instanceof PropertySheetEntry) {