When loading and initializing the class sun.net.InetAddrCachePolicy, NFEs will be thrown and caught when networkaddress.cache.ttl and networkaddress.cache.negative.ttl aren't set (which they typically aren't):

        try {
            tmp = new Integer(
              java.security.AccessController.doPrivileged (
                new PrivilegedAction<String>() {
                  public String run() {
                      return Security.getProperty(cachePolicyProp);
                  }
              }));
        } catch (NumberFormatException e) {
            // ignore
        }