Examples with SuppressFBWarnings edu.umd.cs.findbugs.annotations.SuppressFBWarnings used on opensource projects

Example 71 with SuppressFBWarnings

use of edu.umd.cs.findbugs.annotations.SuppressFBWarnings in project hazelcast by hazelcast.

the class JVMUtil method isHotSpotCompressedOopsOrNull.

// not private for testing
@SuppressFBWarnings("NP_BOOLEAN_RETURN_NULL")
static Boolean isHotSpotCompressedOopsOrNull() {
    try {
        MBeanServer server = ManagementFactory.getPlatformMBeanServer();
        ObjectName mbean = new ObjectName("com.sun.management:type=HotSpotDiagnostic");
        Object[] objects = { "UseCompressedOops" };
        String[] strings = { "java.lang.String" };
        String operation = "getVMOption";
        CompositeDataSupport compressedOopsValue = (CompositeDataSupport) server.invoke(mbean, operation, objects, strings);
        return Boolean.valueOf(compressedOopsValue.get("value").toString());
    } catch (Exception e) {
        getLogger(JVMUtil.class).fine("Failed to read HotSpot specific configuration: " + e.getMessage());
    }
    return null;
}

Example 72 with SuppressFBWarnings

use of edu.umd.cs.findbugs.annotations.SuppressFBWarnings in project jmxtrans by jmxtrans.

the class JmxTransformer method stopServices.

// There is a sleep to work around a Quartz issue. The issue is marked to be
// fixed, but will require further analysis. This should not be reported by
// Findbugs, but as a more complex issue.
@SuppressFBWarnings(value = "SWL_SLEEP_WITH_LOCK_HELD", justification = "Workaround for Quartz issue")
private synchronized void stopServices() throws LifecycleException {
    try {
        // Shutdown the scheduler
        if (serverScheduler.isStarted()) {
            serverScheduler.shutdown(true);
            log.debug("Shutdown server scheduler");
            try {
                // FIXME: Quartz issue, need to sleep
                Thread.sleep(1500);
            } catch (InterruptedException e) {
                log.error(e.getMessage(), e);
                currentThread().interrupt();
            }
        }
        shutdownAndAwaitTermination(queryProcessorExecutor, 10, SECONDS);
        shutdownAndAwaitTermination(resultProcessorExecutor, 10, SECONDS);
        // Shutdown the file watch service
        if (watcher != null) {
            watcher.stopService();
            watcher = null;
            log.debug("Shutdown watch service");
        }
        // Shutdown the outputwriters
        stopWriterAndClearMasterServerList();
    } catch (Exception e) {
        throw new LifecycleException(e);
    }
}

Example 73 with SuppressFBWarnings

use of edu.umd.cs.findbugs.annotations.SuppressFBWarnings in project orientdb by orientechnologies.

the class OLocalHashTable method create.

@SuppressFBWarnings("DLS_DEAD_LOCAL_STORE")
@Override
public void create(OBinarySerializer<K> keySerializer, OBinarySerializer<V> valueSerializer, OType[] keyTypes, boolean nullKeyIsSupported) {
    startOperation();
    try {
        final OAtomicOperation atomicOperation;
        try {
            atomicOperation = startAtomicOperation(false);
        } catch (IOException e) {
            throw OException.wrapException(new OIndexException("Error during hash table creation"), e);
        }
        acquireExclusiveLock();
        try {
            try {
                if (keyTypes != null)
                    this.keyTypes = Arrays.copyOf(keyTypes, keyTypes.length);
                else
                    this.keyTypes = null;
                this.nullKeyIsSupported = nullKeyIsSupported;
                this.directory = new OHashTableDirectory(treeStateFileExtension, getName(), getFullName(), durableInNonTxMode, storage);
                fileStateId = addFile(atomicOperation, getName() + metadataConfigurationFileExtension);
                directory.create();
                final OCacheEntry hashStateEntry = addPage(atomicOperation, fileStateId);
                pinPage(atomicOperation, hashStateEntry);
                hashStateEntry.acquireExclusiveLock();
                try {
                    OHashIndexFileLevelMetadataPage page = new OHashIndexFileLevelMetadataPage(hashStateEntry, getChanges(atomicOperation, hashStateEntry), true);
                    hashStateEntryIndex = hashStateEntry.getPageIndex();
                } finally {
                    hashStateEntry.releaseExclusiveLock();
                    releasePage(atomicOperation, hashStateEntry);
                }
                final String fileName = getFullName();
                fileId = addFile(atomicOperation, fileName);
                setKeySerializer(keySerializer);
                setValueSerializer(valueSerializer);
                initHashTreeState(atomicOperation);
                if (nullKeyIsSupported)
                    nullBucketFileId = addFile(atomicOperation, getName() + nullBucketFileExtension);
                endAtomicOperation(false, null);
            } catch (IOException e) {
                endAtomicOperation(true, e);
                throw e;
            } catch (Exception e) {
                endAtomicOperation(true, e);
                throw OException.wrapException(new OStorageException("Error during local hash table creation"), e);
            }
        } catch (IOException e) {
            throw OException.wrapException(new OIndexException("Error during local hash table creation"), e);
        } finally {
            releaseExclusiveLock();
        }
    } finally {
        completeOperation();
    }
}

Example 74 with SuppressFBWarnings

use of edu.umd.cs.findbugs.annotations.SuppressFBWarnings in project orientdb by orientechnologies.

the class OLocalHashTable20 method initHashTreeState.

@SuppressFBWarnings("DLS_DEAD_LOCAL_STORE")
private void initHashTreeState(OAtomicOperation atomicOperation) throws IOException {
    for (long pageIndex = 0; pageIndex < MAX_LEVEL_SIZE; pageIndex++) {
        final OCacheEntry cacheEntry = loadPageEntry(pageIndex, 0, atomicOperation);
        cacheEntry.acquireExclusiveLock();
        try {
            final OHashIndexBucket<K, V> emptyBucket = new OHashIndexBucket<K, V>(MAX_LEVEL_DEPTH, cacheEntry, keySerializer, valueSerializer, keyTypes, getChanges(atomicOperation, cacheEntry));
        } finally {
            cacheEntry.releaseExclusiveLock();
            releasePage(atomicOperation, cacheEntry);
        }
    }
    final long[] rootTree = new long[MAX_LEVEL_SIZE];
    for (int i = 0; i < MAX_LEVEL_SIZE; i++) rootTree[i] = createBucketPointer(i, 0);
    directory.clear();
    directory.addNewNode((byte) 0, (byte) 0, (byte) MAX_LEVEL_DEPTH, rootTree);
    OCacheEntry hashStateEntry = loadPage(atomicOperation, fileStateId, hashStateEntryIndex, true);
    hashStateEntry.acquireExclusiveLock();
    try {
        OHashIndexFileLevelMetadataPage metadataPage = new OHashIndexFileLevelMetadataPage(hashStateEntry, getChanges(atomicOperation, hashStateEntry), false);
        metadataPage.setBucketsCount(0, MAX_LEVEL_SIZE);
        metadataPage.setRecordsCount(0);
    } finally {
        hashStateEntry.releaseExclusiveLock();
        releasePage(atomicOperation, hashStateEntry);
    }
}

Example 75 with SuppressFBWarnings

use of edu.umd.cs.findbugs.annotations.SuppressFBWarnings in project orientdb by orientechnologies.

the class OLogSegment method readRecord.

@SuppressFBWarnings(value = "PZLA_PREFER_ZERO_LENGTH_ARRAYS")
public byte[] readRecord(OLogSequenceNumber lsn, ByteBuffer byteBuffer) throws IOException {
    final OPair<OLogSequenceNumber, byte[]> lastRecord = lastReadRecord.get();
    if (lastRecord != null && lastRecord.getKey().equals(lsn))
        return lastRecord.getValue();
    assert lsn.getSegment() == order;
    if (lsn.getPosition() >= filledUpTo)
        return null;
    if (!logCache.isEmpty())
        flush();
    long pageIndex = lsn.getPosition() / OWALPage.PAGE_SIZE;
    byte[] record = null;
    int pageOffset = (int) (lsn.getPosition() % OWALPage.PAGE_SIZE);
    long pageCount = (filledUpTo + OWALPage.PAGE_SIZE - 1) / OWALPage.PAGE_SIZE;
    while (pageIndex < pageCount) {
        fileLock.lock();
        try {
            final RandomAccessFile rndFile = getRndFile();
            final FileChannel channel = rndFile.getChannel();
            byteBuffer.position(0);
            channel.read(byteBuffer, pageIndex * OWALPage.PAGE_SIZE);
        } finally {
            fileLock.unlock();
        }
        if (!checkPageIntegrity(byteBuffer))
            throw new OWALPageBrokenException("WAL page with index " + pageIndex + " is broken");
        OWALPage page = new OWALPage(byteBuffer, false);
        byte[] content = page.getRecord(pageOffset);
        if (record == null)
            record = content;
        else {
            byte[] oldRecord = record;
            record = new byte[record.length + content.length];
            System.arraycopy(oldRecord, 0, record, 0, oldRecord.length);
            System.arraycopy(content, 0, record, oldRecord.length, record.length - oldRecord.length);
        }
        if (page.mergeWithNextPage(pageOffset)) {
            pageOffset = OWALPage.RECORDS_OFFSET;
            pageIndex++;
            if (pageIndex >= pageCount)
                throw new OWALPageBrokenException("WAL page with index " + pageIndex + " is broken");
        } else {
            if (page.getFreeSpace() >= OWALPage.MIN_RECORD_SIZE && pageIndex < pageCount - 1)
                throw new OWALPageBrokenException("WAL page with index " + pageIndex + " is broken");
            break;
        }
    }
    lastReadRecord = new WeakReference<OPair<OLogSequenceNumber, byte[]>>(new OPair<OLogSequenceNumber, byte[]>(lsn, record));
    return record;
}