Bug 15844 [Exception Handling] SelectionChange events and NPE
Build 20020508 Due to new global actions there are now more objects listening to selection changes send out by a JFace viewer. We now had the case that one of the listener generated a NPE. As a result all listeners registered after that one didn't receive the selection change event. StructuredViewers should be more fault tolorant to exceptions when informing listeners.
bundles/org.eclipse.jface/src/org/eclipse/jface/viewers/StructuredViewer.java
}
	}
}
/**
 * Discards this viewer's filters and triggers refiltering and resorting
 * of the elements.
 */
public void resetFilters() {
	if (filters != null) {
		filters = null;
		refresh();
	}
}
/**
 * Ensures that the given element is visible, scrolling the viewer if necessary.
 * The selection is unchanged.
 *
 * @param element the element to reveal
 */
public abstract void reveal(Object element);
/**
 * The <code>StructuredViewer</code> implementation of this method
 * checks to ensure that the content provider is an <code>IStructuredContentProvider</code>.
 */
public void setContentProvider(IContentProvider provider) {
	Assert.isTrue(provider instanceof IStructuredContentProvider);
	super.setContentProvider(provider);
}
/* (non-Javadoc)
 * Method declared in Viewer.