* ended up with a magic value that is not compatible with the type of the configured mojo parameter (a string
         * could still be converted by the configurator so we leave those alone). If so, back off to evaluating the
         * expression from properties only.
         */

   * worker runs and exhausts the queue, another thread enqueues a task and fails to schedule the
   * worker, and then the first thread's call to delegate.execute() returns. Without this counter,
   * it would observe the QUEUING state and set it to QUEUED, and the worker would never be
   * scheduled again for future submissions.
   */
  @GuardedBy("queue")
  private long workerRunCount = 0;

  @RetainedWith private final QueueWorker worker = new QueueWorker();

        synchronized (indexUpdateCallback) {
            // required check
            if (!dataMap.containsKey(fessConfig.getIndexFieldUrl()) || dataMap.get(fessConfig.getIndexFieldUrl()) == null) {
                logger.warn("Could not add a doc. Invalid data: {}", dataMap);
                return;
            }

            final String url = dataMap.get(fessConfig.getIndexFieldUrl()).toString();

     * implement Function<A, B>, as discussed in a class-level comment), it would make some sense to
     * perform runtime null checks on the input and output. (That would also make NullPointerTester
     * happy!) However, since we didn't do that for many years, we're not about to start now.
     * (Runtime checks could be particularly bad for users of LegacyConverter.)
     *

   * be called.
   */
  abstract boolean isDone();

  /**
   * Do interruptible work here - do not complete Futures here, as their listeners could be
   * interrupted.
   */
  @ParametricNullness
  abstract T runInterruptibly() throws Exception;

  /**
   * Any interruption that happens as a result of calling interruptTask will arrive before this

                        wagonManager.getArtifactMetadata(metadata, repository, file, policy.getChecksumPolicy());
                    } catch (ResourceDoesNotExistException e) {
                        getLogger().debug(metadata + " could not be found on repository: " + repository.getId());

                        // delete the local copy so the old details aren't used.
                        if (file.exists()) {

                throw new SsoLoginException("could not validate nonce");
            }

            final String nonce = (String) claimsSet.getClaim("nonce");
            if (logger.isDebugEnabled()) {
                logger.debug("nonce: {}", nonce);
            }
            if (StringUtils.isEmpty(nonce) || !nonce.equals(stateData.getNonce())) {
                throw new SsoLoginException("could not validate nonce");
            }

   * our class loader (which could be that of a dynamically loaded web application or OSGi bundle),
   * it would prevent our class loader from getting garbage collected.
   */
  static class DecoupledLoader implements FinalizerLoader {
    private static final String LOADING_ERROR =
        "Could not load Finalizer in its own class loader. Loading Finalizer in the current class "

   * our class loader (which could be that of a dynamically loaded web application or OSGi bundle),
   * it would prevent our class loader from getting garbage collected.
   */
  static class DecoupledLoader implements FinalizerLoader {
    private static final String LOADING_ERROR =
        "Could not load Finalizer in its own class loader. Loading Finalizer in the current class "

            // this is not too good, probably should better pass the address and check that it is a netbios one.
            // While we could look up the domain controller/KDC we cannot really make the java kerberos implementation
            // use a KDC of our choice.
            // A potential workaround would be to try to get the server FQDN by reverse lookup, but this might have
            // security implications and also is not how Microsoft does it.