output: #fixed code
                               @SuppressWarnings({ "unchecked", "rawtypes" })
  	@Override
  	public void endElement(String uri, String localName, String qName) throws SAXException {
  
  		// end of bpmn2:process
  		if (qName.equalsIgnoreCase("bpmn2:process")) {
  			if (currentWorkflowGroup != null) {
  				currentWorkflowGroup = null;
  			}
  		}
  
  		// end of bpmn2:task -
  		if (bImixsTask && qName.equalsIgnoreCase("bpmn2:task")) {
  			bImixsTask = false;
  			taskCache.put(bpmnID, currentEntity);
  		}
  
  		if (qName.equalsIgnoreCase("bpmn2:extensionElements")) {
  			bExtensionElements = false;
  		}
  
  		// end of bpmn2:intermediateCatchEvent -
  		if (bImixsEvent && (qName.equalsIgnoreCase("bpmn2:intermediateCatchEvent")
  				|| qName.equalsIgnoreCase("bpmn2:intermediateThrowEvent"))) {
  			bImixsEvent = false;
  			// we need to cache the activities because the sequenceflows must be
  			// analysed later
  			eventCache.put(bpmnID, currentEntity);
  		}
  
  		/*
  		 * End of a imixs:value
  		 */
  		if (qName.equalsIgnoreCase("imixs:value")) {
  			if (bExtensionElements && bItemValue && currentEntity != null && characterStream != null) {
  
  				String svalue = characterStream.toString();
  				List valueList = currentEntity.getItemValue(currentItemName);
  
  				if ("xs:boolean".equals(currentItemType.toLowerCase())) {
  					valueList.add(Boolean.valueOf(svalue));
  				} else if ("xs:integer".equals(currentItemType.toLowerCase())) {
  					valueList.add(Integer.valueOf(svalue));
  				} else {
  					valueList.add(svalue);
  				}
  
  				// item will only be added if it is not listed in the ignoreItem
  				// List!
  				if (!ignoreItemList.contains(currentItemName)) {
  					currentEntity.replaceItemValue(currentItemName, valueList);
  				}
  			}
  			bItemValue = false;
  			characterStream = null;
  		}
  
  		if (qName.equalsIgnoreCase("bpmn2:documentation")) {
  			if (currentEntity != null) {
  				currentEntity.replaceItemValue("rtfdescription", characterStream.toString());
  			}
  
  			// bpmn2:message?
  			if (bMessage) {
  				// cache the message...
  				messageCache.put(currentMessageName, characterStream.toString());
  				bMessage = false;
  			}
  
  			// bpmn2:annotation?
  			if (bAnnotation) {
  				// cache the annotation
  				annotationCache.put(currentAnnotationName, characterStream.toString());
  				bAnnotation = false;
  			}
  
  			characterStream = null;
  			bdocumentation = false;
  		}
  
  		// end of bpmn2:intermediateThrowEvent -
  		if (bLinkThrowEvent && !bLinkCatchEvent && (qName.equalsIgnoreCase("bpmn2:linkEventDefinition"))) {
  			bLinkThrowEvent = false;
  			// we need to cache the link name
  			linkThrowEventCache.put(bpmnID, currentLinkName);
  		}
  
  		// end of bpmn2:intermediateCatchEvent -
  		if (bLinkCatchEvent && !bLinkThrowEvent && (qName.equalsIgnoreCase("bpmn2:linkEventDefinition"))) {
  			bLinkCatchEvent = false;
  			// we need to cache the link name
  			linkCatchEventCache.put(currentLinkName, bpmnID);
  		}
  
  		// test conditional sequence flow...
  		if (bSequenceFlow && bconditionExpression && qName.equalsIgnoreCase("bpmn2:conditionExpression")) {
  			String svalue = characterStream.toString();
  			logger.fine("conditional SequenceFlow:" + bpmnID + "=" + svalue);
  			bconditionExpression = false;
  			conditionCache.put(bpmnID, svalue);
  		}
  
  	}
input: #vulnerable code 
                               @SuppressWarnings({ "unchecked", "rawtypes" })
  	@Override
  	public void endElement(String uri, String localName, String qName) throws SAXException {
  
  		// end of bpmn2:process
  		if (qName.equalsIgnoreCase("bpmn2:process")) {
  			if (currentWorkflowGroup != null) {
  				currentWorkflowGroup = null;
  			}
  		}
  
  		// end of bpmn2:task -
  		if (bImixsTask && qName.equalsIgnoreCase("bpmn2:task")) {
  			bImixsTask = false;
  			taskCache.put(bpmnID, currentEntity);
  		}
  
  		if (qName.equalsIgnoreCase("bpmn2:extensionElements")) {
  			bExtensionElements = false;
  		}
  
  		// end of bpmn2:intermediateCatchEvent -
  		if (bImixsEvent && (qName.equalsIgnoreCase("bpmn2:intermediateCatchEvent")
  				|| qName.equalsIgnoreCase("bpmn2:intermediateThrowEvent"))) {
  			bImixsEvent = false;
  			// we need to cache the activities because the sequenceflows must be
  			// analysed later
  			eventCache.put(bpmnID, currentEntity);
  		}
  
  		/*
  		 * End of a imixs:value
  		 */
  		if (qName.equalsIgnoreCase("imixs:value")) {
  			if (bExtensionElements && bItemValue && currentEntity != null && characterStream != null) {
  
  				String svalue = characterStream.toString();
  				List valueList = currentEntity.getItemValue(currentItemName);
  
  				if ("xs:boolean".equals(currentItemType.toLowerCase())) {
  					valueList.add(Boolean.valueOf(svalue));
  				} else if ("xs:integer".equals(currentItemType.toLowerCase())) {
  					valueList.add(Integer.valueOf(svalue));
  				} else {
  					valueList.add(svalue);
  				}
  
  				// item will only be added if it is not listed in the ignoreItem
  				// List!
  				if (!ignoreItemList.contains(currentItemName)) {
  					currentEntity.replaceItemValue(currentItemName, valueList);
  				}
  			}
  			bItemValue = false;
  			characterStream = null;
  		}
  
  		if (qName.equalsIgnoreCase("bpmn2:documentation")) {
  			if (currentEntity != null) {
  				currentEntity.replaceItemValue("rtfdescription", characterStream.toString());
  			}
  
  			// bpmn2:message?
  			if (bMessage) {
  				// cache the message...
  				messageCache.put(currentMessageName, characterStream.toString());
  				bMessage = false;
  			}
  
  			// bpmn2:annotation?
  			if (bAnnotation) {
  				// cache the annotation
  				annotationCache.put(currentAnnotationName, characterStream.toString());
  				bAnnotation = false;
  			}
  
  			characterStream = null;
  			bdocumentation = false;
  		}
  
  		// end of bpmn2:intermediateThrowEvent -
  		if (bLinkThrowEvent && !bLinkCatchEvent && (qName.equalsIgnoreCase("bpmn2:linkEventDefinition"))) {
  			bLinkThrowEvent = false;
  			// we need to cache the link name
  			linkThrowEventCache.put(bpmnID, currentLinkName);
  		}
  
  		// end of bpmn2:intermediateCatchEvent -
  		if (bLinkCatchEvent && !bLinkThrowEvent && (qName.equalsIgnoreCase("bpmn2:linkEventDefinition"))) {
  			bLinkCatchEvent = false;
  			// we need to cache the link name
  			linkCatchEventCache.put(currentLinkName, bpmnID);
  		}
  
  	} 
                              #location 66 
                              #vulnerability type NULL_DEREFERENCE