code: public boolean isPosixManditoryFileLock() {
  
          boolean manditory = POSIX_MANDITORY_FILELOCK_DEFAULT;
  
          try {
              manditory = "true".equalsIgnoreCase(
                  System.getProperty(
                      POSIX_MANDITORY_FILELOCK_PROPERTY, manditory ? "true"
                                                                   : "false"));
          } catch (Exception e) {}
  
          return manditory;
      }
docs: Retrieves whether POSIX mandatory file lock tagging is performed. <p>
  
  The value is obtained in the following manner: <p>
  
  <ol>
  <li>manditory is assigned <tt>POSIX_MANDITORY_FILELOCK_DEFAULT</tt>
  <li>manditory is assigned <tt>"true".equalsIgnoreCase(
  System.getProperty(POSIX_MANDITORY_FILELOCK_PROPERTY,
  manditory ? "true" : "false"));
  </tt>, inside a try-catch block, to silently ignore any security
  exception.
  </ol>
  @return <tt>true</tt> if POSIX mandatory file lock tagging is performed