Bug 155799 [regression]Error occour when previewing attached report in web viewer
Error occour when previewing attached report in web viewer Step to reproduce: preview attached report in web viewer Expected: work properly Actual : Error occour in web viewer while in PDF and HTML displayed properly.
data/org.eclipse.birt.data/src/org/eclipse/birt/data/engine/impl/PreparedDummyQuery.java
* @see org.eclipse.birt.data.engine.impl.IQueryService#isClosed()
		 */
		public boolean isClosed( )
		{
			return isClosed;
		}
		/*
		 * Dummy query only can be the most outer query.
		 * 
		 * @see org.eclipse.birt.data.engine.impl.IQueryService#getNestedLevel()
		 */
		public int getNestedLevel( )
		{
			return 0;
		}
		/*
		 * @see org.eclipse.birt.data.engine.impl.IQueryService#getQueryScope()
		 */
		public Scriptable getQueryScope( )
		{
			return queryScope;
		}
		/*
		 * @see org.eclipse.birt.data.engine.impl.IQueryService#getExecutorHelper()
		 */
		public IExecutorHelper getExecutorHelper( ) throws DataException
		{
			return new IExecutorHelper( ) {
				
				/*