Bug 201396 Exception is thrown out when a chart use the list shared result set [0005]
data/org.eclipse.birt.data/src/org/eclipse/birt/data/engine/impl/QueryResults.java
{
			return 0;
		}
		public IResultObject getCurrentResult( ) throws DataException
		{
			return this.prototype.getCurrentResult();
		}
		public int getCurrentResultIndex( ) throws DataException
		{
			return this.prototype.getCurrentResultIndex();
		}
		public int getEndingGroupLevel( ) throws DataException
		{
			return 0;
		}
		public IExecutorHelper getExecutorHelper( )
		{
			return this.prototype.getExecutorHelper( );
		}
		public int[] getGroupStartAndEndIndex( int groupLevel )
				throws DataException
		{
			return this.prototype.getGroupStartAndEndIndex( groupLevel );
		}
		public IResultClass getResultClass( ) throws DataException
		{
			return this.prototype.getResultClass( );
		}
		public ResultSetCache getResultSetCache( )
		{