this.delegates = delegates;
        this.coreArtifacts = coreExports.getExportedArtifacts();
    }

    private synchronized Set<String> getExcludedArtifacts() {
        if (excludedArtifacts == null) {
            excludedArtifacts = new LinkedHashSet<>(coreArtifacts);
        }
        return excludedArtifacts;
    }

    /**

   */
  public static TesterRequirements getTesterRequirements(Class<?> testerClass)
      throws ConflictingRequirementsException {
    synchronized (classTesterRequirementsCache) {
      TesterRequirements requirements = classTesterRequirementsCache.get(testerClass);
      if (requirements == null) {
        requirements = buildTesterRequirements(testerClass);

        }
        return beanDesc;
    }

    /**
     * Performs initialization.
     */
    public static void initialize() {
        synchronized (BeanDescFactory.class) {
            if (!initialized) {
                DisposableUtil.add(BeanDescFactory::clear);
                initialized = true;
            }
        }
    }

    /**

            dataMap.put(fessConfig.getIndexFieldDocId(), systemHelper.generateDocId(dataMap));
        }

        ComponentUtil.getLanguageHelper().updateDocument(dataMap);

        synchronized (docList) {
            docList.add(ingest(paramMap, dataMap));
            final long contentSize = indexingHelper.calculateDocumentSize(dataMap);
            docList.addContentSize(contentSize);

    @SuppressWarnings("SynchronizeOnNonFinalField")
    public T get() {
      // A 2-field variant of Double Checked Locking.
      if (!initialized) {
        synchronized (lock) {
          if (!initialized) {
            T t = delegate.get();
            value = t;
            initialized = true;
            return t;
          }
        }
      }

META-INF/MANIFEST.MF Manifest-Version: 1.0 Archiver-Version: Plexus Archiver Created-By: Apache Maven Built-By: BEBE Build-Jdk: 1.4.2_16 org/apache/maven/its/mng3906/SomeClass.class package org.apache.maven.its.mng3906; public synchronized class SomeClass { public void SomeClass(); } pom.xml 4.0.0 org.apache.maven.its.mng3906 a 0.1 jar maven-core-it file:///${basedir}/repo true true . pom.xml src/** src/main/resources src/main/java/org/apache/maven/its/mng3906/SomeClass.java src/main/java/org...

META-INF/MANIFEST.MF Manifest-Version: 1.0 Archiver-Version: Plexus Archiver Created-By: Apache Maven Built-By: BEBE Build-Jdk: 1.4.2_16 org/apache/maven/its/mng3906/SomeClass.class package org.apache.maven.its.mng3906; public synchronized class SomeClass { public void SomeClass(); } pom.xml 4.0.0 org.apache.maven.its.mng3906 b 0.1 jar maven-core-it file:///${basedir}/repo true true . pom.xml src/** src/main/resources src/main/java/org/apache/maven/its/mng3906/SomeClass.java src/main/java/org...

 * It extends {@link LinkedHashMap} without synchronization. If multiple threads access
 * an instance concurrently, and at least one thread modifies the map structurally,
 * it must be synchronized externally.
 * </p>
 * <p>
 * For thread-safe usage, wrap with {@link java.util.Collections#synchronizedMap(Map)}:
 * </p>
 * <pre>
 * Map&lt;K, V&gt; syncMap = Collections.synchronizedMap(new LruHashMap&lt;&gt;(100));

            throw new SQLRuntimeException(e);
        }
    }

    /**
     * Deregisters all JDBC drivers associated with the current class loader.
     */
    public static synchronized void deregisterAllDrivers() {
        for (final Enumeration<Driver> e = DriverManager.getDrivers(); e.hasMoreElements();) {
            deregisterDriver(e.nextElement());
        }
    }

import org.jspecify.annotations.Nullable;

/**
 * Tests for {@link Synchronized#deque} and {@link Queues#synchronizedDeque}.
 *
 * @author Kurt Alfred Kluever
 */
@NullUnmarked
public class SynchronizedDequeTest extends TestCase {

  protected Deque<String> create() {
    TestDeque<String> inner = new TestDeque<>();
    Deque<String> outer = Synchronized.deque(inner, inner.mutex);