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
{
					
					paramValue = ParameterAccessor.getReportParameter( request,
							paramName, null );
					params.put( paramName, paramValue );
				}
			}
			else
			{
				Object valueObj = null;
				if ( this.isDesigner
						&& ( IBirtConstants.SERVLET_PATH_RUN
								.equalsIgnoreCase( request.getServletPath( ) ) || IBirtConstants.SERVLET_PATH_PARAMETER
								.equalsIgnoreCase( request.getServletPath( ) ) )
						&& this.configMap != null
						&& this.configMap.containsKey( paramName ) )
				{
					
					valueObj = this.configMap.get( paramName );
				}
				else if ( this.parameterMap != null
						&& this.parameterMap.containsKey( paramName ) )
				{
					
					valueObj = this.parameterMap.get( paramName );
				}
				else
				{
					
					continue;