Bug 168304 Context root issue when set to other BIRT Web Project.[0603]
viewer/org.eclipse.birt.report.viewer/birt/WEB-INF/classes/org/eclipse/birt/report/taglib/AbstractBaseTag.java
*/
	public abstract void __process( ) throws Exception;
	
	/**
	 * Default constructor
	 */
	public AbstractBaseTag( )
	{
		__init( );
	}
	/**
	 * Then entry to initialize tag
	 * 
	 * @throws Exception
	 */
	public void __init( )
	{
		viewer = new ViewerField( );
	}
	
	/**
	 * Initialize pageContext
	 * 
	 * @see javax.servlet.jsp.tagext.TagSupport#setPageContext(javax.servlet.jsp.PageContext)
	 */
	public void setPageContext( PageContext context )
	{
		super.setPageContext( context );
		this.__init( );
	}