this.fp = 0L;
        } catch (final CIFSException e) {
            throw SmbException.wrap(e);
        }
    }

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

    private static class IOExceptionOccurProperties extends Properties {

        /**
         *
         */
        private static final long serialVersionUID = 1L;

        @Override
        public synchronized void load(final InputStream inStream) throws IOException {
            throw new IOException("load");
        }

    }

    /**
     * {@link org.codelibs.core.io.PropertiesUtil#load(Properties, String)}

                        BufferCache.releaseBuffer(buffer);
                        successCount.incrementAndGet();
                    }
                } catch (Exception e) {
                    synchronized (exceptions) {
                        exceptions.add(e);
                    }
                } finally {
                    endLatch.countDown();
                }
            });
        }

    protected abstract FileEntry[] getResults();

    /**
     * Closes the enumeration and releases resources.
     *
     * @throws CIFSException if an error occurs during closing
     */
    protected synchronized void doClose() throws CIFSException {
        // otherwise already closed
        if (!this.closed) {
            this.closed = true;
            try {
                doCloseInternal();
            } finally {

        // When - Release session to trigger cleanup
        session.release();

        // Then - Trees should be cleared (we can't directly verify as it's internal,
        // but the cleanup code with synchronized block ensures it happens atomically)
        // The important part is that no exception occurs and the operation is atomic
    }

    /**
     * Test concurrent acquire and release operations.
     */

                    // be explicitly safe here to avoid interleaving output from multiple test suites
                    synchronized (this) {
                        // make sure we've flushed everything to disk before reading
                        eventWriter.flush();

                        System.err.println("\n\nSuite: " + suite);

     */
    @Override
    public void refresh() throws CIFSException {
        log.debug("Refreshing JAAS credentials");
        this.cachedSubject = null;
    }

    @Override
    public synchronized Subject getSubject() {
        if (this.cachedSubject != null) {
            return this.cachedSubject;
        }

        try {
            log.debug("Logging on");
            LoginContext lc;

                            synchronized (project) {
                                cleanProjectLocalRepository(project);
                            }
                        }
                    }
                }
                break;
            case ProjectSucceeded:
            case ForkedProjectSucceeded:
                synchronized (project) {

    }

    @Test
    public void test_evaluate_concurrency() {
        queryRescorer = new QueryRescorer() {
            private int callCount = 0;

            @Override
            public synchronized RescorerBuilder<?> evaluate(Map<String, Object> params) {
                callCount++;
                if (callCount % 2 == 0) {
                    return createMockRescorerBuilder();
                }

        final int[] callCount = { 0 };

        SearchLogHelper mockSearchLogHelper = new SearchLogHelper() {
            @Override
            public void storeSearchLog() {
                synchronized (lock) {
                    callCount[0]++;
                    if (callCount[0] % 2 == 0) {
                        throw new RuntimeException("Even call error");
                    }