Bug 135790 ClassCastException in RowData.
ClassCastException is thrown in RowData line 81(IBaseExpression expr = ( IBaseExpression ) valueExpressions.get( index - 1 );).
engine/org.eclipse.birt.report.engine/src/org/eclipse/birt/report/engine/parser/EngineIRVisitor.java
UserPropertyDefn p = (UserPropertyDefn) properties.get( i );
			scalarParameter.addUserProperty( p.getName( ), handle
					.getProperty( p.getName( ) ) );
		}
		String align = handle.getAlignment( );
		if ( DesignChoiceConstants.SCALAR_PARAM_ALIGN_CENTER.equals( align ) )
			scalarParameter.setAlignment( IScalarParameterDefn.CENTER );
		else if ( DesignChoiceConstants.SCALAR_PARAM_ALIGN_LEFT.equals( align ) )
			scalarParameter.setAlignment( IScalarParameterDefn.LEFT );
		else if ( DesignChoiceConstants.SCALAR_PARAM_ALIGN_RIGHT.equals( align ) )
			scalarParameter.setAlignment( IScalarParameterDefn.RIGHT );
		else
			scalarParameter.setAlignment( IScalarParameterDefn.AUTO );
		scalarParameter.setAllowBlank( handle.allowBlank( ) );
		scalarParameter.setAllowNull( handle.allowNull( ) );
		String controlType = handle.getControlType( );
		if ( DesignChoiceConstants.PARAM_CONTROL_CHECK_BOX.equals( controlType ) )
			scalarParameter.setControlType( IScalarParameterDefn.CHECK_BOX );
		else if ( DesignChoiceConstants.PARAM_CONTROL_LIST_BOX
				.equals( controlType ) )
			scalarParameter.setControlType( IScalarParameterDefn.LIST_BOX );
		else if ( DesignChoiceConstants.PARAM_CONTROL_RADIO_BUTTON
				.equals( controlType ) )
			scalarParameter.setControlType( IScalarParameterDefn.RADIO_BUTTON );
		else
			scalarParameter.setControlType( IScalarParameterDefn.TEXT_BOX );
		scalarParameter.setDefaultValue( handle.getDefaultValue( ) );
		scalarParameter.setDisplayName( handle.getDisplayName( ) );
		scalarParameter.setDisplayNameKey( handle.getDisplayNameKey( ) );
		scalarParameter.setFormat( handle.getFormat( ) );