Bug 211710 [Regression] Data of cascading parameters in the report extended from the library can not be selected from the drop-down list when preview [01]
Description: Data of cascading parameters in the report extended from the library can not be selected from the drop-down list when preview. Build number: 2.2.2.v20071203-0630 Steps to reproduce: 1. New a Library with cascading parameters. 2. New a report and extend the cascading parameters from the library and preview. Expected result: Values can be selected from the drop-down list. Actual result: Values can not be selected from the drop-down list. Error log: N/A
engine/org.eclipse.birt.report.engine/src/org/eclipse/birt/report/engine/api/impl/GetParameterDefinitionTask.java
public SlotHandle getParameters( )
	{
		ReportDesignHandle report = (ReportDesignHandle) runnable
				.getDesignHandle( );
		return report.getParameters( );
	}
	public ParameterHandle getParameter( String name )
	{
		ReportDesignHandle report = (ReportDesignHandle) runnable
				.getDesignHandle( );
		return report.findParameter( name );
	}
	public HashMap getDefaultValues( )
	{
		
		usingParameterValues( );
		final HashMap values = new HashMap( );
		
		new ParameterVisitor( ) {
			boolean visitScalarParameter( ScalarParameterHandle param,
					Object userData )
			{
				String name = param.getName( );
				String expr = param.getDefaultValue( );
				String type = param.getDataType( );
				Object value = convertToType( expr, type );
				values.put( name, value );
				return true;
			}
			boolean visitParameterGroup( ParameterGroupHandle group,