output: #fixed code
                                  private static boolean userHasAdministerPermission() {
          return Jenkins.get().hasPermission(Jenkins.ADMINISTER);
      }
input: #vulnerable code 
                                  private static boolean userHasAdministerPermission() {
          return Jenkins.getInstance().getACL().hasPermission(Jenkins.ADMINISTER);
      } 
                              #location 2 
                              #vulnerability type NULL_DEREFERENCE