* already garbage collected.
 *
 * <p>Like other {@code Entry} instances associated with {@code CacheBuilder}, this class holds
 * strong references to the key and value, regardless of the type of references the cache may be
 * using.
 *
 * @author Charles Fry
 * @since 10.0
 */
@GwtCompatible
public final class RemovalNotification<K, V>

import java.util.concurrent.ConcurrentMap;
import org.jspecify.annotations.Nullable;

/**
 * A builder of {@link ConcurrentMap} instances that can have keys or values automatically wrapped
 * in {@linkplain WeakReference weak} references.
 *
 * <p>Usage example:
 *
 * {@snippet :
 * ConcurrentMap<Request, Stopwatch> timers = new MapMaker()
 *     .concurrencyLevel(4)
 *     .weakKeys()
 *     .makeMap();
 * }
 *

    assertThat(sepStopwatchA.get()).isNotNull();
    // Clear all references to the Stopwatch and wait for it to be gc'd.
    sepStopwatchA.set(null);
    GcFinalization.awaitClear(sepStopwatchRef.get());
    // Return a weak reference to the parallel ClassLoader. This is the reference that should
    // eventually become clear if there are no other references to the ClassLoader.
    return new WeakReference<ClassLoader>(sepLoader);
  }

        try {
            // Force release the handle with null checks
            if (this.usageCount != null) {
                this.usageCount.set(0);
            }

            // Clear references to prevent memory leaks
            try {
                if (this.treeConnection != null) {
                    // Release the tree connection if possible

replacers:
  # Strip backport branch prefixes like [maven-4.0.x], [maven-3.x], etc.
  - search: '/^\[maven-[\d\.x-]+\]\s*-?\s*/g'
    replace: ''
  # Convert JIRA ticket references to links (but not maven branch prefixes)
  - search: '/\[([A-Z]+)-(\d+)\]\s*-?\s*/g'

            return 0;
          }
        };

    assertEquals(0, (int) iter.next());

    assertThrows(UnsupportedOperationException.class, iter::remove);
  }


  @GwtIncompatible // weak references
  @J2ktIncompatible
  public void testFreesNextReference() {
    Iterator<Object> itr =
        new AbstractIterator<Object>() {
          @Override
          public Object computeNext() {

 * specific language governing permissions and limitations
 * under the License.
 */
package org.apache.maven.model.path;

/**
 * Normalizes a URL to remove the ugly parent references "../" that got potentially inserted by URL adjustment during
 * model inheritance.
 *
 * @deprecated use {@code org.apache.maven.api.services.ModelBuilder} instead
 */
@Deprecated(since = "4.0.0")

import java.util.concurrent.ConcurrentMap;
import org.jspecify.annotations.Nullable;

/**
 * A builder of {@link ConcurrentMap} instances that can have keys or values automatically wrapped
 * in {@linkplain WeakReference weak} references.
 *
 * <p>Usage example:
 *
 * {@snippet :
 * ConcurrentMap<Request, Stopwatch> timers = new MapMaker()
 *     .concurrencyLevel(4)
 *     .weakKeys()
 *     .makeMap();
 * }
 *

        // parent references child with artifactId (which is not directory name)
        // then relative path calculation will fail during build from disk but success when calculated from repo
        try {
            // build from disk expected to fail
            testInheritance("tricky-flat-artifactId-urls", false);
            // fail( "should have failed since module reference == artifactId != directory name" );

    @ParametricNullness private final T reference;

    private Wrapper(Equivalence<? super @NonNull T> equivalence, @ParametricNullness T reference) {
      this.equivalence = checkNotNull(equivalence);
      this.reference = reference;
    }

    /** Returns the (possibly null) reference wrapped by this instance. */
    @ParametricNullness
    public T get() {
      return reference;
    }

    /**