// Test throwing and catching PluginException with cause
        String expectedMessage = "Plugin configuration error";
        Throwable expectedCause = new IllegalStateException("Invalid state");

        try {
            throw new PluginException(expectedMessage, expectedCause);
        } catch (PluginException e) {
            assertEquals(expectedMessage, e.getMessage());

     * the lock to check again. Since an IDLE state was observed inside the preceding synchronized
     * block, and reference field assignment is atomic, this may save reacquiring the lock when
     * another thread or the worker task has cleared the count and set the state.
     *
     * <p>When {@link #executor} is a directExecutor(), the value written to

    void awaitWaiting() {
      while (!isBlocked()) {
        if (getState() == State.TERMINATED) {
          throw new RuntimeException("Thread exited");
        }
        Thread.yield();
      }
    }

    private boolean isBlocked() {
      return getState() == Thread.State.WAITING && LockSupport.getBlocker(this) == future;
    }
  }

crawler.data.serializer=kryo
# Maximum length of site name in documents.
crawler.document.max.site.length=100
# Encoding for site names in documents.
crawler.document.site.encoding=UTF-8
# Hostname to use when unknown in documents.
crawler.document.unknown.hostname=unknown
# Whether to use site encoding for English documents.
crawler.document.use.site.encoding.on.english=false
# Whether to append data to documents.

        }
    }

    /**
     * Sets the enable/disable state of XInclude.
     *
     * @param spf
     *            {@link SAXParserFactory}. Must not be {@literal null}.
     * @param state
     *            <code>true</code> to enable XInclude.
     * @return <code>true</code> if the XInclude state was successfully set.
     */

     * Gets the maximum allowed length for site strings from configuration.
     *
     * @return the maximum site length as configured
     */
    default int getMaxSiteLength() {
        return getFessConfig().getCrawlerDocumentMaxSiteLengthAsInteger();
    }

    /**
     * Abbreviates a site string to the maximum allowed length if configured.
     *
     * @param value the site string to abbreviate

For the more details, see the implementation code in [GsaApiManager](/src/main/java/org/codelibs/fess/api/gsa/GsaApiManager.java).

### Google Site Search (GSS) / Google Custom Search (GSE)

[Fess Site Search](https://github.com/codelibs/fess-site-search) provides [scripts](https://fss-generator.codelibs.org/docs/manual) (see below) to help you migrate from GSS/CSE.
Using the, you can replace existing GSS/CSE JavaScript codes with:

    }
  }

  private void checkAndUpdateState(State oldState, State newState) {
    checkState(
        compareAndUpdateState(oldState, newState),
        "Expected state to be %s, but it was %s",
        oldState,
        newState);
  }

  private boolean compareAndUpdateState(State oldState, State newState) {
    return state.compareAndSet(oldState, newState);
  }

      extends AbstractFuture<T> {
    private @Nullable InCompletionOrderState<T> state;

    private InCompletionOrderFuture(InCompletionOrderState<T> state) {
      this.state = state;
    }

    @Override
    public boolean cancel(boolean interruptIfRunning) {
      InCompletionOrderState<T> localState = state;
      if (super.cancel(interruptIfRunning)) {
        /*

                    final String code = request.getParameter("code");
                    final String reqState = request.getParameter("state");
                    if (logger.isDebugEnabled()) {
                        logger.debug("code: {}, state(request): {}, state(session): {}", code, reqState, sesState);
                    }
                    if (sesState.equals(reqState) && StringUtil.isNotBlank(code)) {