Examples with ConcurrentModificationException java.util.ConcurrentModificationException used on opensource projects

Example 41 with ConcurrentModificationException

use of java.util.ConcurrentModificationException in project stanbol by apache.

the class RootResource method performLoadOntology.

protected ResponseBuilder performLoadOntology(MultiPartBody data, HttpHeaders headers, Origin<?>... keys) {
    log.debug(" post(MultiPartBody data)");
    ResponseBuilder rb = null;
    IRI location = null;
    // If found, it takes precedence over location.
    byte[] file = null;
    String format = null;
    List<OWLOntologyID> aliases = new ArrayList<OWLOntologyID>();
    if (data.getFormFileParameterValues("file").length > 0) {
        file = data.getFormFileParameterValues("file")[0].getContent();
    }
    // else {
    if (data.getTextParameterValues("format").length > 0) {
        String value = data.getTextParameterValues("format")[0];
        if (!value.equals("auto")) {
            format = value;
        }
    }
    if (data.getTextParameterValues("url").length > 0) {
        String value = data.getTextParameterValues("url")[0];
        try {
            // To throw 400 if malformed.
            URI.create(value);
            location = IRI.create(value);
        } catch (Exception ex) {
            log.error("Malformed IRI for " + value, ex);
            throw new WebApplicationException(ex, BAD_REQUEST);
        }
    }
    if (data.getTextParameterValues("alias").length > 0) {
        for (String value : data.getTextParameterValues("alias")) {
            if (!"null".equals(value)) {
                try {
                    aliases.add(OntologyUtils.decode(value));
                } catch (Exception ex) {
                    log.error("Malformed public key for " + value, ex);
                    throw new WebApplicationException(ex, BAD_REQUEST);
                }
            }
        }
    }
    log.debug("Parameters:");
    log.debug("file: {}", file != null && file.length > 0 ? "NOT-NULL" : "null");
    log.trace("file data: {}", file);
    log.debug("url: {}", location);
    log.debug("format: {}", format);
    log.debug("alias: {}", aliases);
    // Then add the file
    OWLOntologyID key = null;
    if (file != null && file.length > 0) {
        /*
             * Because the ontology provider's load method could fail after only one attempt without resetting
             * the stream, we might have to do that ourselves.
             */
        List<String> formats;
        if (format != null && !format.trim().isEmpty()) {
            formats = Collections.singletonList(format);
        } else // The RESTful API has its own list of preferred formats
        {
            formats = Arrays.asList(RDF_XML, TURTLE, X_TURTLE, N3, N_TRIPLE, OWL_XML, FUNCTIONAL_OWL, MANCHESTER_OWL, RDF_JSON);
        }
        log.debug("Will try {} supported formats", formats.size());
        int unsupported = 0, failed = 0;
        Iterator<String> itf = formats.iterator();
        if (!itf.hasNext()) {
            throw new OntologyLoadingException("No suitable format found or defined.");
        }
        do {
            String f = itf.next();
            try {
                // Re-instantiate the stream on every attempt
                InputStream content = new BufferedInputStream(new ByteArrayInputStream(file));
                // ClerezzaOWLUtils.guessOntologyID(new FileInputStream(file), Parser.getInstance(), f);
                OWLOntologyID guessed = OWLUtils.guessOntologyID(content, Parser.getInstance(), f);
                if (guessed != null && !guessed.isAnonymous() && ontologyProvider.hasOntology(guessed)) {
                    rb = Response.status(Status.CONFLICT);
                    this.submitted = guessed;
                    if (headers.getAcceptableMediaTypes().contains(MediaType.TEXT_HTML_TYPE)) {
                        rb.entity(new Viewable("/imports/409.ftl", this));
                        rb.header(HttpHeaders.CONTENT_TYPE, MediaType.TEXT_HTML + "; charset=utf-8");
                    }
                    break;
                } else {
                    content = new BufferedInputStream(new ByteArrayInputStream(file));
                    key = ontologyProvider.loadInStore(content, f, true, keys);
                }
            } catch (UnsupportedFormatException e) {
                log.warn("POST method failed for media type {}. This should not happen (should fail earlier)", headers.getMediaType());
                // rb = Response.status(UNSUPPORTED_MEDIA_TYPE);
                unsupported++;
            } catch (IOException e) {
                log.debug(">>> FAILURE format {} (I/O error)", f);
                failed++;
            } catch (ConcurrentModificationException e) {
                log.error("Exception logged", e);
                failed++;
            } catch (Exception e) {
                // SAXParseException and others
                log.debug(">>> FAILURE format {} (parse error)", f);
                log.debug("Caught exception {} : {}", e.getClass(), e.getLocalizedMessage());
                log.trace("Exception logged", e);
                failed++;
            }
        } while ((key == null) && itf.hasNext());
        if ((key == null || key.isAnonymous()) && rb == null) {
            if (failed > 0) {
                throw new WebApplicationException(BAD_REQUEST);
            } else if (unsupported > 0) {
                throw new WebApplicationException(UNSUPPORTED_MEDIA_TYPE);
            }
        }
    } else if (location != null) {
        try {
            // Here we try every format supported by the Java API
            key = ontologyProvider.loadInStore(location, null, true, keys);
        } catch (Exception e) {
            log.error("Failed to load ontology from " + location, e);
            Throwable cause = e.getCause();
            String html = "<h1>400 Bad Request</h1>" + "<p>Failed to load ontology from <a href=\"" + location + "\" target=\"_blank\">" + location + "</a></p>";
            if (cause != null)
                html += "<p>logged cause was: " + cause.getLocalizedMessage().replace("<", "&lt;").replace(">", "&gt;") + "</p>";
            return Response.status(BAD_REQUEST).type(TEXT_HTML).entity(html);
        }
    } else if (// No content but there are aliases.
    !aliases.isEmpty()) {
        for (Origin<?> origin : keys) {
            if (origin.getReference() instanceof OWLOntologyID) {
                OWLOntologyID primary = ((OWLOntologyID) origin.getReference());
                if (ontologyProvider.getStatus(primary) != org.apache.stanbol.ontologymanager.servicesapi.ontology.OntologyProvider.Status.NO_MATCH) {
                    for (OWLOntologyID alias : aliases) {
                        try {
                            if (ontologyProvider.addAlias(primary, alias) && key == null) {
                                key = alias;
                            }
                        } catch (IllegalArgumentException ex) {
                            log.warn("Cannot add alias");
                            log.warn(" ... ontology key: {}", primary);
                            log.warn(" ... alias: {}", alias);
                            log.warn(" ... reason: ", ex);
                            continue;
                        }
                    }
                }
            }
        }
    } else {
        log.error("Bad request");
        log.error(" file is: {}", file);
        throw new WebApplicationException(BAD_REQUEST);
    }
    if (key != null && !key.isAnonymous()) {
        String uri = OntologyUtils.encode(key);
        if (uri != null && !uri.isEmpty()) {
            rb = Response.ok();
            if (headers.getAcceptableMediaTypes().contains(MediaType.TEXT_HTML_TYPE)) {
                rb.entity(new Viewable("index", this));
                rb.header(HttpHeaders.CONTENT_TYPE, MediaType.TEXT_HTML + "; charset=utf-8");
            }
        } else {
            rb = Response.ok();
        }
    } else if (rb == null) {
        rb = Response.status(Status.INTERNAL_SERVER_ERROR);
    }
    return rb;
}

Example 42 with ConcurrentModificationException

use of java.util.ConcurrentModificationException in project eclipse.platform.text by eclipse.

the class DocumentLineDiffer method initialize.

/**
 * (Re-)initializes the differ using the current reference and <code>DiffInitializer</code>.
 *
 * @since 3.2 protected for testing reasons, package visible before
 */
protected synchronized void initialize() {
    // make new incoming changes go into the queue of stored events, plus signal we can't restore.
    fState = INITIALIZING;
    if (fRightDocument == null)
        return;
    // there is no point in receiving updates before the job we get a new copy of the document for diffing
    fIgnoreDocumentEvents = true;
    if (fLeftDocument != null) {
        fLeftDocument.removeDocumentListener(this);
        fLeftDocument = null;
        fLeftEquivalent = null;
    }
    // if there already is a job:
    // return if it has not started yet, cancel it if already running
    final Job oldJob = fInitializationJob;
    if (oldJob != null) {
        // don't chain up jobs if there is one waiting already.
        if (oldJob.getState() == Job.WAITING) {
            oldJob.wakeUp(INITIALIZE_DELAY);
            return;
        }
        oldJob.cancel();
    }
    fInitializationJob = new Job(QuickDiffMessages.quickdiff_initialize) {

        /*
			 * This is run in a different thread. As the documents might be synchronized, never ever
			 * access the documents in a synchronized section or expect deadlocks. See
			 * https://bugs.eclipse.org/bugs/show_bug.cgi?id=44692
			 */
        @Override
        public IStatus run(IProgressMonitor monitor) {
            // It will return relatively quickly as RangeDifferencer supports canceling
            if (oldJob != null)
                try {
                    oldJob.join();
                } catch (InterruptedException e) {
                    // will not happen as no one interrupts our thread
                    Assert.isTrue(false);
                }
            // 2:	get the reference document
            IQuickDiffReferenceProvider provider = fReferenceProvider;
            final IDocument left;
            try {
                left = provider == null ? null : provider.getReference(monitor);
            } catch (CoreException e) {
                synchronized (DocumentLineDiffer.this) {
                    if (isCanceled(monitor))
                        return Status.CANCEL_STATUS;
                    clearModel();
                    fireModelChanged();
                    return e.getStatus();
                }
            } catch (OperationCanceledException e) {
                return Status.CANCEL_STATUS;
            }
            // Getting our own copies of the documents for offline diffing.
            // 
            // We need to make sure that we do get all document modifications after
            // copying the documents as we want to re-inject them later on to become consistent.
            // fRightDocument, but not subject to change
            IDocument right = fRightDocument;
            // the copy of the actual (right) document
            IDocument actual = null;
            // the copy of the reference (left) document
            IDocument reference = null;
            synchronized (DocumentLineDiffer.this) {
                // 4: take an early exit if the documents are not valid
                if (left == null || right == null) {
                    if (isCanceled(monitor))
                        return Status.CANCEL_STATUS;
                    clearModel();
                    fireModelChanged();
                    return Status.OK_STATUS;
                }
                // set the reference document
                fLeftDocument = left;
                // start listening to document events.
                fIgnoreDocumentEvents = false;
            }
            // accessing the reference document from a different thread - reference providers need
            // to be able to deal with this.
            left.addDocumentListener(DocumentLineDiffer.this);
            // create the reference copy - note that any changes on the
            // reference will trigger re-initialization anyway
            reference = createCopy(left);
            if (reference == null)
                return Status.CANCEL_STATUS;
            // create the actual copy
            Object lock = null;
            if (right instanceof ISynchronizable)
                lock = ((ISynchronizable) right).getLockObject();
            if (lock != null) {
                // the document
                synchronized (lock) {
                    synchronized (DocumentLineDiffer.this) {
                        if (isCanceled(monitor))
                            return Status.CANCEL_STATUS;
                        fStoredEvents.clear();
                        actual = createUnprotectedCopy(right);
                    }
                }
            } else {
                // b) cannot lock the document
                // Now this is fun. The reference documents may be PartiallySynchronizedDocuments
                // which will result in a deadlock if they get changed externally before we get
                // our exclusive copies.
                // Here's what we do: we try over and over (without synchronization) to get copies
                // without interleaving modification. If there is a document change, we just repeat.
                int i = 0;
                do {
                    // this is an arbitrary emergency exit in case a referenced document goes nuts
                    if (i++ == 100)
                        return new Status(IStatus.ERROR, TextEditorPlugin.PLUGIN_ID, IStatus.OK, NLSUtility.format(QuickDiffMessages.quickdiff_error_getting_document_content, new Object[] { left.getClass(), right.getClass() }), null);
                    synchronized (DocumentLineDiffer.this) {
                        if (isCanceled(monitor))
                            return Status.CANCEL_STATUS;
                        fStoredEvents.clear();
                    }
                    // access documents non synchronized:
                    // get an exclusive copy of the actual document
                    actual = createCopy(right);
                    synchronized (DocumentLineDiffer.this) {
                        if (isCanceled(monitor))
                            return Status.CANCEL_STATUS;
                        if (fStoredEvents.size() == 0 && actual != null)
                            break;
                    }
                } while (true);
            }
            IHashFunction hash = new DJBHashFunction();
            DocumentEquivalenceClass leftEquivalent = new DocumentEquivalenceClass(reference, hash);
            fLeftEquivalent = leftEquivalent;
            IRangeComparator ref = new DocEquivalenceComparator(leftEquivalent, null);
            DocumentEquivalenceClass rightEquivalent = new DocumentEquivalenceClass(actual, hash);
            fRightEquivalent = rightEquivalent;
            IRangeComparator act = new DocEquivalenceComparator(rightEquivalent, null);
            ArrayList<QuickDiffRangeDifference> diffs = asQuickDiffRangeDifference(RangeDifferencer.findRanges(fRangeDiffFactory, monitor, ref, act));
            // re-inject stored events to get up to date.
            synchronized (DocumentLineDiffer.this) {
                if (isCanceled(monitor))
                    return Status.CANCEL_STATUS;
                // set the new differences so we can operate on them
                fDifferences = diffs;
            }
            // re-inject events accumulated in the meantime.
            try {
                do {
                    DocumentEvent event;
                    synchronized (DocumentLineDiffer.this) {
                        if (isCanceled(monitor))
                            return Status.CANCEL_STATUS;
                        if (fStoredEvents.isEmpty()) {
                            // we are back in sync with the life documents
                            fInitializationJob = null;
                            fState = SYNCHRONIZED;
                            fLastDifference = null;
                            // replace the private documents with the actual
                            leftEquivalent.setDocument(left);
                            rightEquivalent.setDocument(right);
                            break;
                        }
                        event = fStoredEvents.remove(0);
                    }
                    // access documents non synchronized:
                    IDocument copy = null;
                    if (event.fDocument == right)
                        copy = actual;
                    else if (event.fDocument == left)
                        copy = reference;
                    else
                        Assert.isTrue(false);
                    // copy the event to inject it into our diff copies
                    // don't modify the original event! See https://bugs.eclipse.org/bugs/show_bug.cgi?id=134227
                    event = new DocumentEvent(copy, event.fOffset, event.fLength, event.fText);
                    handleAboutToBeChanged(event);
                    // inject the event into our private copy
                    actual.replace(event.fOffset, event.fLength, event.fText);
                    handleChanged(event);
                } while (true);
            } catch (BadLocationException e) {
                left.removeDocumentListener(DocumentLineDiffer.this);
                clearModel();
                initialize();
                return Status.CANCEL_STATUS;
            }
            fireModelChanged();
            return Status.OK_STATUS;
        }

        private boolean isCanceled(IProgressMonitor monitor) {
            return fInitializationJob != this || monitor != null && monitor.isCanceled();
        }

        private void clearModel() {
            synchronized (DocumentLineDiffer.this) {
                fLeftDocument = null;
                fLeftEquivalent = null;
                fInitializationJob = null;
                fStoredEvents.clear();
                fLastDifference = null;
                fDifferences.clear();
            }
        }

        /**
         * Creates a copy of <code>document</code> and catches any
         * exceptions that may occur if the document is modified concurrently.
         * Only call this method in a synchronized block if the document is
         * an ISynchronizable and has been locked, as document.get() is called
         * and may result in a deadlock otherwise.
         *
         * @param document the document to create a copy of
         * @return a copy of the document, or <code>null</code> if an exception was thrown
         */
        private IDocument createCopy(IDocument document) {
            Assert.isNotNull(document);
            // this fixes https://bugs.eclipse.org/bugs/show_bug.cgi?id=56091
            try {
                return createUnprotectedCopy(document);
            } catch (NullPointerException e) {
            } catch (ArrayStoreException e) {
            } catch (IndexOutOfBoundsException e) {
            } catch (ConcurrentModificationException e) {
            } catch (NegativeArraySizeException e) {
            }
            return null;
        }

        private IDocument createUnprotectedCopy(IDocument document) {
            return new Document(document.get());
        }
    };
    fInitializationJob.setSystem(true);
    fInitializationJob.setPriority(Job.DECORATE);
    fInitializationJob.setProperty(IProgressConstants.NO_IMMEDIATE_ERROR_PROMPT_PROPERTY, Boolean.TRUE);
    fInitializationJob.schedule(INITIALIZE_DELAY);
}

Example 43 with ConcurrentModificationException

use of java.util.ConcurrentModificationException in project mobile-sdk-android by meniga.

the class MenigaHttpLogger method intercept.

@Override
public Response intercept(Chain chain) throws IOException {
    Request request = chain.request();
    if (logLevel == LogLevel.NONE) {
        return chain.proceed(request);
    }
    boolean logBody = logType == LogType.BODY_ONLY || logType == LogType.BODY_AND_HEADERS;
    boolean logHeaders = logType == LogType.HEADERS_ONLY || logType == LogType.BODY_AND_HEADERS;
    RequestBody requestBody = request.body();
    boolean hasRequestBody = requestBody != null;
    String reqUrl = request.url().toString();
    String requestStartMessage = request.method() + REQUEST_START + reqUrl;
    if (!logHeaders && hasRequestBody) {
        requestStartMessage += " (" + requestBody.contentLength() + "-byte body)";
    }
    log(requestStartMessage);
    if (logHeaders) {
        if (hasRequestBody) {
            // them to be included (when available) so their values are known.
            if (requestBody.contentType() != null) {
                log(getHeaderString("Content-Type", requestBody.contentType().toString()));
            }
            if (requestBody.contentLength() != -1) {
                log(getHeaderString("Content-Length", Long.toString(requestBody.contentLength())));
            }
        }
        Headers headers = request.headers();
        for (int i = 0, count = headers.size(); i < count; i++) {
            String name = headers.name(i);
            // Skip headers from the request body as they are explicitly logged above.
            if (!"Content-Type".equalsIgnoreCase(name) && !"Content-Length".equalsIgnoreCase(name)) {
                log(getHeaderString(name, headers.value(i)));
            }
        }
    }
    if (!logBody) {
        log(REQUEST_END + request.method());
    } else if (!hasRequestBody) {
        log(BODY);
        log(NO_BODY);
    } else if (bodyEncoded(request.headers())) {
        log(REQUEST_END + request.method() + " (encoded body omitted)");
    } else {
        Buffer buffer = new Buffer();
        try {
            requestBody.writeTo(buffer);
        } catch (ConcurrentModificationException ex) {
            log("Error logging body - got ConcurrentModificationException");
        }
        Charset charset = UTF8;
        MediaType contentType = requestBody.contentType();
        if (contentType != null) {
            charset = contentType.charset(UTF8);
        }
        log(BODY);
        if (isPlaintext(buffer)) {
            log(buffer.readString(charset));
            log(REQUEST_END + request.method() + " (" + requestBody.contentLength() + "-byte body)");
        } else {
            log("<" + requestBody.contentLength() + "-BYTE BINARY BODY OMITTED");
            log(REQUEST_END + request.method());
        }
    }
    long startNs = System.nanoTime();
    Response response;
    try {
        response = chain.proceed(request);
    } catch (Exception e) {
        log("<---- HTTP FAILED: " + e);
        throw e;
    }
    long tookMs = TimeUnit.NANOSECONDS.toMillis(System.nanoTime() - startNs);
    ResponseBody responseBody = response.body();
    long contentLength = responseBody.contentLength();
    String bodySize = contentLength != -1 ? contentLength + "-byte" : "unknown-length";
    log(RESPONSE_START + reqUrl);
    log("(" + tookMs + "ms" + (!logHeaders ? ", " + bodySize + " body" : "") + ")");
    if (logHeaders) {
        Headers headers = response.headers();
        for (int i = 0, count = headers.size(); i < count; i++) {
            log(getHeaderString(headers.name(i), headers.value(i)));
        }
    }
    if (!logBody) {
        log(RESPONSE_END);
    } else if (!HttpHeaders.hasBody(response)) {
        log(BODY);
        log(NO_BODY);
        log(RESPONSE_END);
    } else if (bodyEncoded(response.headers())) {
        log(BODY);
        log("<ENCODED BODY OMITTED>");
        log(RESPONSE_END);
    } else {
        BufferedSource source = responseBody.source();
        // Buffer the entire body.
        source.request(Long.MAX_VALUE);
        Buffer buffer = source.buffer();
        Charset charset = UTF8;
        MediaType contentType = responseBody.contentType();
        if (contentType != null) {
            try {
                charset = contentType.charset(UTF8);
            } catch (UnsupportedCharsetException e) {
                log(BODY);
                log("<ERROR DECODING BODY; CHARSET IS LIKELY MALFORMED.>");
                log(RESPONSE_END);
                return response;
            }
        }
        if (!isPlaintext(buffer)) {
            log(BODY);
            log("<BINARY " + buffer.size() + "-BYTE BODY OMITTED>");
            log(RESPONSE_END);
            return response;
        }
        if (contentLength != 0) {
            log(BODY + " (" + buffer.size() + "-byte body)");
            log(buffer.clone().readString(charset));
        }
        log(RESPONSE_END);
    }
    return response;
}

Example 44 with ConcurrentModificationException

use of java.util.ConcurrentModificationException in project tomee by apache.

the class ClassLoaderUtil method clearSunJarFileFactoryCacheImpl.

/**
 * Due to several different implementation changes in various JDK releases the code here is not as
 * straight forward as reflecting debug items in your current runtime. There have even been breaking changes
 * between 1.6 runtime builds, let alone 1.5.
 * <p/>
 * If you discover a new issue here please be careful to ensure the existing functionality is 'extended' and not
 * just replaced to match your runtime observations.
 * <p/>
 * If you want to look at the mess that leads up to this then follow the source code changes made to
 * the class sun.net.www.protocol.jar.JarFileFactory over several years.
 *
 * @param jarLocation String
 * @param attempt     int
 */
@SuppressWarnings({ "unchecked" })
private static synchronized void clearSunJarFileFactoryCacheImpl(final String jarLocation, final int attempt) {
    if (skipClearSunJarFile.get()) {
        return;
    }
    logger.debug("Clearing Sun JarFileFactory cache for directory " + jarLocation);
    try {
        final Class jarFileFactory = Class.forName("sun.net.www.protocol.jar.JarFileFactory");
        // Do not generify these maps as their contents are NOT stable across runtimes.
        final Field fileCacheField = jarFileFactory.getDeclaredField("fileCache");
        fileCacheField.setAccessible(true);
        final Map fileCache = (Map) fileCacheField.get(null);
        final Map fileCacheCopy = new HashMap(fileCache);
        final Field urlCacheField = jarFileFactory.getDeclaredField("urlCache");
        urlCacheField.setAccessible(true);
        final Map urlCache = (Map) urlCacheField.get(null);
        final Map urlCacheCopy = new HashMap(urlCache);
        // The only stable item we have here is the JarFile/ZipFile in this map
        Iterator iterator = urlCacheCopy.entrySet().iterator();
        final List urlCacheRemoveKeys = new ArrayList();
        while (iterator.hasNext()) {
            final Map.Entry entry = (Map.Entry) iterator.next();
            final Object key = entry.getKey();
            if (key instanceof ZipFile) {
                final ZipFile zf = (ZipFile) key;
                // getName returns File.getPath()
                final File file = new File(zf.getName());
                if (isParent(jarLocation, file)) {
                    // Flag for removal
                    urlCacheRemoveKeys.add(key);
                }
            } else {
                logger.warning("Unexpected key type: " + key);
            }
        }
        iterator = fileCacheCopy.entrySet().iterator();
        final List fileCacheRemoveKeys = new ArrayList();
        while (iterator.hasNext()) {
            final Map.Entry entry = (Map.Entry) iterator.next();
            final Object value = entry.getValue();
            if (urlCacheRemoveKeys.contains(value)) {
                fileCacheRemoveKeys.add(entry.getKey());
            }
        }
        // Use these unstable values as the keys for the fileCache values.
        iterator = fileCacheRemoveKeys.iterator();
        while (iterator.hasNext()) {
            final Object next = iterator.next();
            try {
                final Object remove = fileCache.remove(next);
                if (null != remove) {
                    logger.debug("Removed item from fileCache: " + remove);
                }
            } catch (final Throwable e) {
                logger.warning("Failed to remove item from fileCache: " + next);
            }
        }
        iterator = urlCacheRemoveKeys.iterator();
        while (iterator.hasNext()) {
            final Object next = iterator.next();
            try {
                final Object remove = urlCache.remove(next);
                try {
                    ((ZipFile) next).close();
                } catch (final Throwable e) {
                // Ignore
                }
                if (null != remove) {
                    logger.debug("Removed item from urlCache: " + remove);
                }
            } catch (final Throwable e) {
                logger.warning("Failed to remove item from urlCache: " + next);
            }
        }
    } catch (final ConcurrentModificationException e) {
        if (attempt > 0) {
            clearSunJarFileFactoryCacheImpl(jarLocation, attempt - 1);
        } else {
            logger.error("Unable to clear Sun JarFileFactory cache after 5 attempts", e);
        }
    } catch (final ClassNotFoundException | NoSuchFieldException e) {
    // not a sun vm
    } catch (final RuntimeException re) {
        if ("java.lang.reflect.InaccessibleObjectException".equals(re.getClass().getName())) {
            skipClearSunJarFile.compareAndSet(false, true);
            return;
        }
        throw re;
    } catch (final Throwable e) {
        if (Boolean.getBoolean("openejb.java9.hack")) {
            // reflection fails cause internals are not exported, close() is called and should be fine
            return;
        }
        logger.error("Unable to clear Sun JarFileFactory cache", e);
    }
}

Example 45 with ConcurrentModificationException

use of java.util.ConcurrentModificationException in project tomee by apache.

the class ManyToManyComplexPkTests method testIteratorConcurrentModification.

public void testIteratorConcurrentModification() throws Exception {
    resetDB();
    beginTransaction();
    final Set games;
    try {
        final PlatformLocal platform = findPlatform(new Integer(1));
        final GameLocal game = findGame(new Integer(11));
        games = platform.getGames();
        assertFalse(games.isEmpty());
        assertEquals(2, games.size());
        final Iterator iterator = games.iterator();
        games.remove(game);
        assertEquals(1, games.size());
        try {
            iterator.next();
            fail("expected iterator.next() to throw an ConcurrentModificationException");
        } catch (final ConcurrentModificationException expected) {
        }
    } finally {
        completeTransaction();
    }
}