a2.setDependencyFilter(new ExcludesArtifactFilter(Arrays.asList("foo")));

        // sanity checks
        assertNotSame(a1, a2);
        assertNotSame(lr1, lr2);
        assertNotSame(rr1, rr2);

        DefaultMavenMetadataCache.CacheKey k1 =
                new DefaultMavenMetadataCache.CacheKey(a1, false, lr1, Collections.singletonList(rr1));

import static org.junit.jupiter.api.Assertions.assertNotSame;

/**
 */
class DefaultMavenExecutionTest {
    @Test
    void testCopyDefault() {
        MavenExecutionRequest original = new DefaultMavenExecutionRequest();
        MavenExecutionRequest copy = DefaultMavenExecutionRequest.copy(original);
        assertNotNull(copy);
        assertNotSame(copy, original);
    }

    @Test

import org.mockito.Mock;
import org.mockito.junit.jupiter.MockitoExtension;

import static org.junit.jupiter.api.Assertions.assertNotNull;
import static org.junit.jupiter.api.Assertions.assertNotSame;
import static org.junit.jupiter.api.Assertions.assertSame;
import static org.junit.jupiter.api.Assertions.assertThrows;
import static org.junit.jupiter.api.Assertions.assertTrue;

@PlexusTest

            return new DecoupledClassLoader(new URL[] {base});
          }
        };

    Class<?> finalizerCopy = decoupledLoader.loadFinalizer();

    assertNotNull(finalizerCopy);
    assertNotSame(Finalizer.class, finalizerCopy);

    assertNotNull(FinalizableReferenceQueue.getStartFinalizer(finalizerCopy));
  }

  static class DecoupledClassLoader extends URLClassLoader {

            return new DecoupledClassLoader(new URL[] {base});
          }
        };

    Class<?> finalizerCopy = decoupledLoader.loadFinalizer();

    assertNotNull(finalizerCopy);
    assertNotSame(Finalizer.class, finalizerCopy);

    assertNotNull(FinalizableReferenceQueue.getStartFinalizer(finalizerCopy));
  }

  static class DecoupledClassLoader extends URLClassLoader {

    @SuppressWarnings("unchecked")
    Class<TestEnum> shadowTestEnum =
        (Class<TestEnum>) Class.forName(TestEnum.class.getName(), false, shadowLoader);
    assertNotSame(shadowTestEnum, TestEnum.class);
    // We can't write Set<TestEnum> because that is a Set of the TestEnum from the original
    // ClassLoader.
    Set<Object> shadowConstants = new HashSet<>();

    @SuppressWarnings("unchecked")
    Class<TestEnum> shadowTestEnum =
        (Class<TestEnum>) Class.forName(TestEnum.class.getName(), false, shadowLoader);
    assertNotSame(shadowTestEnum, TestEnum.class);
    // We can't write Set<TestEnum> because that is a Set of the TestEnum from the original
    // ClassLoader.
    Set<Object> shadowConstants = new HashSet<>();