Bug 202762 [Regression] Report parameter does not work correctly when the type or the data entered is wrong [0705]
Description: Report parameter does not work correctly when the type or the data entered is wrong. Build number: 2.2.1.v20070910-0630 Steps to reproduce: 1. New a report with a parameter and set type to integer. 2. Preview and input "abc" and click OK. 3. Preview again and click OK. Expected result: 1. Exception should pops up when preview for the fist time to indicate the type of the data entered is wrong. 2. Preview works correctly for the second preview. Actual result: 1. No exception for the first preview and change from preview tab back to Layout tab. 2. Dialogue pops up says "New Parameter is required" for the second preview. Error log: N/A
viewer/org.eclipse.birt.report.viewer/birt/WEB-INF/classes/org/eclipse/birt/report/service/actionhandler/BirtCacheParameterActionHandler.java
locs.add( paramValue );
				}
				
				else if ( paramName
						.equalsIgnoreCase( ParameterAccessor.PARAM_ISNULL ) )
				{
					ParameterDefinition parameter = attrBean
							.findParameterDefinition( paramValue );
					if ( parameter != null )
					{
						
						configVar
								.setName( getConfigName( ParameterAccessor.PARAM_ISNULL
										+ "_" + parameter.getId( ) ) ); 
						configVar.setValue( paramValue
								+ "_" + parameter.getId( ) ); 
						handle.addConfigVariable( configVar );
						
						updateParameterInfo( handle, parameter );
					}
					continue;
				}
				else if ( ( displayTextParam = ParameterAccessor
						.isDisplayText( paramName ) ) != null )
				{
					ParameterDefinition parameter = attrBean
							.findParameterDefinition( displayTextParam );
					if ( parameter != null )
					{