output: #fixed code
                                  @Test
      public void testStart_WFData() throws Exception {
          Map<Object, Object> map = new HashMap<Object, Object>();
  
          map.put("process.label", "test");
          swr.bindWorkflowProcesses(new WFDataWorkflowProcess(), map);
  
          Map<String, Map<String, Object>> metadata = new HashMap<String, Map<String, Object>>();
  
          swr.start(resourceResolver,
                  "/content/test",
                  new String[] {"test"},
                  metadata);
      }
input: #vulnerable code 
                                  @Test
      public void testStart_WFData() throws Exception {
          Map<Object, Object> map = new HashMap<Object, Object>();
  
          map.put("process.label", "test");
          swr.bindWorkflowProcesses(new WFDataWorkflowProcess(), map);
  
          Map<String, Map<String, Object>> metadata = new HashMap<String, Map<String, Object>>();
  
          swr.start(null,
                  "/content/test",
                  new String[] {"test"},
                  metadata);
      } 
                              #location 10 
                              #vulnerability type NULL_DEREFERENCE