Bug 171415 [Viewers] Table viewer needs to clear label, image when items are reused
If an item is reused for a different element on a refresh, the table viewer needs to clear the label and image from the item being reused. This is necessary to communicate to the label provider that a new label is needed (i.e. the label provider may defer providing a label if decorators are not ready). This is what the tree viewer does. To see the problem, open the Java Browsing perspective and select a Java project. Then click between different packages. Notice that some of the labels in the Types list take a while to update. Opening one of these reveals that the label is showing the wrong text.
bundles/org.eclipse.jface/src/org/eclipse/jface/viewers/AbstractTableViewer.java
/**
		 * @param count
		 */
		public void adjustCacheSize(int count) {
			if (count == cachedElements.length) {
				return;
			} else if (count < cachedElements.length) {
				Object[] newCache = new Object[count];
				System.arraycopy(cachedElements, 0, newCache, 0, count);
				cachedElements = newCache;
			} else {
				Object[] newCache = new Object[count];
				System.arraycopy(cachedElements, 0, newCache, 0,
						cachedElements.length);
				cachedElements = newCache;
			}
		}
	}
	private VirtualManager virtualManager;
	/**
	 * Create the new viewer for table like widgets
	 */
	public AbstractTableViewer() {
		super();
	}
	protected void hookControl(Control control) {
		super.hookControl(control);
		initializeVirtualManager(getControl().getStyle());
	}
	/**