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
implements
				ICascadingParameterSelectionChoice
	{
		Collection children;
		public CascadingParameterSelectionChoice( String label, Object value )
		{
			super( label, value );
		}
		public void setChildren( Collection children )
		{
			this.children = children;
		}
		
		public Collection getChildSelectionList( )
		{
			return children;
		}
		public boolean equals( Object obj )
		{