.filter(ga -> ga.startsWith("org.apache.maven:maven-api-"))
                .collect(Collectors.toSet());
    }

    private ClassRealm newRealm(String id) {
        synchronized (world) {
            String realmId = id;

            Random random = new Random();

            while (true) {
                try {

   *
   * <p>This method is not type-safe, as it may be called on elements that are not mutually
   * comparable.
   *
   * <p>This method is safe to use even when {@code elements} is a synchronized or concurrent
   * collection that is currently being modified by another thread.
   *
   * @throws ClassCastException if the elements are not mutually comparable

        }
    }

    protected ResponseData processRequest(final String uri, final boolean includeContent) {
        if (!isInit.get()) {
            synchronized (isInit) {
                if (!isInit.get()) {
                    init();
                    isInit.set(true);
                }
            }
        }

        // start

        val totalExceptionBytes = bufferedSource.readInt()
        publicSuffixExceptionListBytes = bufferedSource.readByteArray(totalExceptionBytes.toLong())
      }

      synchronized(this) {
        this.publicSuffixListBytes = publicSuffixListBytes!!
        this.publicSuffixExceptionListBytes = publicSuffixExceptionListBytes!!
      }
    } finally {
      readCompleteLatch.countDown()

    }


    /**
     * Bind the handle
     * 
     * @throws DcerpcException
     * @throws IOException
     */
    public void bind () throws DcerpcException, IOException {
        synchronized ( this ) {
            try {
                this.state = 1;
                DcerpcMessage bind = new DcerpcBind(this.binding, this);
                sendrecv(bind);
            }

                        doc.remove(thumbnailField);
                    }
                });
            }
            final CrawlingConfigHelper crawlingConfigHelper = ComponentUtil.getCrawlingConfigHelper();
            synchronized (searchEngineClient) {
                final long deletedDocCount = deleteOldDocuments(searchEngineClient, docList);
                if (logger.isDebugEnabled()) {

        try ( SmbFileHandleImpl fh = ensureOpen() ) {}
    }


    /**
     * @param file
     * @param openFlags
     * @return
     * @throws SmbException
     */
    synchronized SmbFileHandleImpl ensureOpen () throws CIFSException {
        if ( this.handle == null || !this.handle.isValid() ) {
            // one extra acquire to keep this open till the stream is released

        }
        return cached;
    }


    /**
     * @param applyMutations
     * @return configurations available for running
     * 
     */
    public synchronized static Map<String, Map<String, String>> getConfigs ( String[] applyMutations ) {
        Map<String, Map<String, String>> configs = new HashMap<>();

            if (totalProjects <= 1) {
                infoMain(building);
            } else {
                // display progress [i/n]
                int number;
                synchronized (this) {
                    number = ++currentVisitedProjectCount;
                }
                String progress = " [" + number + '/' + totalProjects + ']';

                    resp.flushBuffer();
                    return null;
                }
            }
        }

        return ntlm;
    }


    private synchronized NtlmChallenge getChallengeForDomain ( String domain ) throws UnknownHostException, ServletException {
        if ( domain == null ) {
            throw new ServletException("A domain was not specified");
        }