Bug 155178 [Deploy] Preview report failed on war deployed weblogic server
viewer/org.eclipse.birt.report.viewer/birt/WEB-INF/classes/org/eclipse/birt/report/context/ViewerAttributeBean.java
if ( paramName.toLowerCase( ).startsWith(
								ParameterAccessor.PARAM_ISNULL )
								&& paramValue != null )
						{
							String nullParamName = getParameterName( paramValue );
							if ( nullParamName != null )
								this.configMap.put( nullParamName, null );
							continue;
						}
						
						else if ( ( displayTextParam = ParameterAccessor
								.isDisplayText( paramName ) ) != null )
						{
							paramName = getParameterName( displayTextParam );
							if ( paramName != null )
							{
								if ( this.displayTexts == null )
									this.displayTexts = new HashMap( );
								this.displayTexts.put( paramName, paramValue );
							}
							continue;
						}
						
						paramName = getParameterName( paramName );
						ScalarParameterHandle parameter = (ScalarParameterHandle) findParameter( paramName );
						
						
						if ( paramValue != null && parameter != null )
						{