Bug 209450 [regression]Duplicate values display in Cascading parameter list[0705]
Descripption: Duplicate values display in Cascading parameter list Build number:2.3.0.v20071112 Steps to reproduce: 1. New sample data source and dataset from CUSTOMERS. 2. New a cascading parameter from COUNTRY, STATE AND CITY fields. 3. Preview. Expected result: Values in three parameter list aren't duplicated. Actual result: Duplicate values show in parameter list. Error log:n/a
engine/org.eclipse.birt.report.engine/src/org/eclipse/birt/report/engine/api/impl/GetParameterDefinitionTask.java
public boolean equals( Object obj )
		{
			if ( obj == this )
			{
				return true;
			}
			if ( !(obj instanceof ValueGroup ) )
			{
				return false;
			}
			ValueGroup valueGroup = (ValueGroup)obj;
			if ( parameterIndex != valueGroup.parameterIndex )
			{
				return false;
			}
			for ( int i = 0; i <= parameterIndex; i++ )
			{
				if ( !(equal(values[i], valueGroup.values[i])))
				{
					return false;
				}
			}
			return true;
		}
		
		private boolean equal(Object obj1, Object obj2 )
		{
			if ( obj1 == null )
			{
				return obj2 == null;