Copyright (c) 2007 IBM Corporation and others.
All rights reserved. This program and the accompanying materials
are made available under the terms of the Eclipse Public License v1.0
which accompanies this distribution, and is available at
IBM Corporation - initial API and implementation
This class represents a null buffer. This buffer is used to represent a buffer for a class file
that has no source attached.
Creates a new null buffer on an underlying resource.
super(file, owner, readOnly);