Bug 173224 [regression] preview attached report caused data exception
steps to reproduce: - preview attached report within deployed birt report viewer expected behavior: - report is rendered properly actual behavior: - exception thrown in console, although report was rendered
viewer/org.eclipse.birt.report.viewer/birt/WEB-INF/classes/org/eclipse/birt/report/service/actionhandler/BirtGetCascadeParameterActionHandler.java
{
					ParameterDefinition def = (ParameterDefinition) group
							.getParameters( ).get( params.size( ) + i );
					remainingParamNames.add( def.getName( ) );
				}
			}
		}
		
		try
		{
			if ( remainingParamNames.size( ) > 0 )
			{
				listArray = new List[remainingParamNames.size( )];
				for ( int k = 0; k < remainingParamNames.size( ); k++ )
				{
					Object[] keyValue = new Object[params.size( ) + k];
					Set values = params.keySet( );
					int i = 0;
					for ( Iterator it = values.iterator( ); it.hasNext( ); )
					{
						keyValue[i] = params.get( it.next( ) );
						i++;
					}
					for ( i = 0; i < k; i++ )
					{
						if ( listArray[i].isEmpty( ) )
						{
							keyValue[params.size( ) + i] = null;
						}
						else