Bug 207250 Check blank value for datetime type parameter from url.[0002][0705]
Description: Check blank value for datetime type parameter from url. Build number:2.3.0.v20071023 Steps to reproduce: 1. New a datetime parameter mydt,listbox, tick off isRequired. 2. Preview in external browser and add "&dt=" in url, press enter. Expected result: Error message to indicate blank value isn't allowed for this parameter. Actual result: No error message and blank value is accepted. I tried to new a jsp and use <birt:paramDef> to pass the blank value and the blank value is accepted,too. Error log:n/a
viewer/org.eclipse.birt.report.viewer/birt/WEB-INF/classes/org/eclipse/birt/report/context/ViewerAttributeBean.java
{
							this.exception = e;
							break;
						}
					}
				}
				if ( paramObj instanceof List )
				{
					List list = (List) paramObj;
					
					
					
					if ( list.size( ) == 0
							|| ( list.size( ) == 1 && list.get( 0 ) == null ) )
						params.put( paramName, null );
					else
						params.put( paramName, paramList.toArray( ) );
				}
				else
				{
					params.put( paramName, paramList.get( 0 ) );
				}
			}
			else
			{
				Object paramValueObj = null;
				
				if ( !this.parametersAsString.containsKey( paramName ) )
				{