@Test
    void testCauseConstructor() {
        Throwable cause = new RuntimeException("Root cause");
        PACDecodingException e = new PACDecodingException(cause);
        // When constructed with only a cause, the implementation passes (null, cause) to super
        // which results in a null message rather than deriving it from the cause
        assertNull(e.getMessage());
        assertSame(cause, e.getCause());
    }

    /**

import org.apache.maven.api.annotations.Experimental;
import org.apache.maven.api.services.Request;
import org.apache.maven.api.services.Result;

/**
 * Interface for caching request results in Maven. This cache implementation provides
 * methods for executing and optionally caching both single requests and batches of requests.
 * <p>
 * The cache behavior is determined by the cache retention specified in the request's metadata.

import com.google.caliper.Benchmark;
import com.google.caliper.Param;
import java.util.BitSet;
import java.util.Random;
import org.jspecify.annotations.NullUnmarked;

/** Benchmark for the {@link CharMatcher#whitespace} implementation. */
@NullUnmarked
public class WhitespaceMatcherBenchmark {
  private static final int STRING_LENGTH = 10000;

  private static final String OLD_WHITESPACE_TABLE =

import java.util.HashSet;
import java.util.List;
import java.util.Set;
import junit.framework.TestSuite;

/**
 * Creates, based on your criteria, a JUnit test suite that exhaustively tests a Set implementation.
 *
 * @author George van den Driessche
 */
@GwtIncompatible
public class SetTestSuiteBuilder<E>
    extends AbstractCollectionTestSuiteBuilder<SetTestSuiteBuilder<E>, E> {

 */
package org.codelibs.core.collection;

import java.util.AbstractSet;
import java.util.ConcurrentModificationException;
import java.util.Iterator;
import java.util.Set;

/**
 * A {@link Set} implementation that stores its elements in a {@link LruHashMap}.
 * <p>
 * This set has a fixed maximum capacity. When the capacity is reached and a new element is added,
 * the least recently used element is removed.
 * </p>

import jcifs.SmbPipeResource;
import jcifs.SmbResource;
import jcifs.SmbTransportPool;
import jcifs.smb.Handler;
import jcifs.smb.SmbFile;
import jcifs.smb.SmbNamedPipe;

/**
 * A wrapper implementation of CIFSContext that delegates to another context.
 * This class allows for context decoration and customization through delegation.
 *
 * @author mbechler
 */
public class CIFSContextWrapper implements CIFSContext {

import org.junit.jupiter.api.Test;

import jcifs.smb1.util.Hexdump;

/**
 * Unit test for {@link Trans2QueryFSInformation}. The class contains mostly
 * trivial wire-format helpers and a custom {@code toString()} implementation.
 * All tests are pure unit tests – no network or file system access is
 * required.
 */
class Trans2QueryFSInformationTest {

    /** Small helper to create a byte buffer larger than the maximum expected

    private DataStore dataStore;

    @Override
    public void setUp() throws Exception {
        super.setUp();
    }

    public void test_store_basic() {
        // Create a simple DataStore implementation for testing
        final AtomicBoolean storeCalled = new AtomicBoolean(false);
        final AtomicReference<DataConfig> capturedConfig = new AtomicReference<>();

        // Arrange/Act: do nothing
        // Assert: verify no interactions
        verifyNoInteractions(mockEntry);
    }

    // --- Fake implementation tests (happy path and edge cases) ---

    @Test
    @DisplayName("Fake implementation returns provided values (happy path)")
    void fakeImplementation_happyPath() {
        // Arrange

import java.io.Serializable;
import java.util.Collection;
import java.util.Set;
import org.jspecify.annotations.NullUnmarked;
import org.jspecify.annotations.Nullable;

/**
 * {@link Set} implementation that asserts that a given lock is held whenever one of its methods is
 * called.
 */
@NullUnmarked
class LockHeldAssertingSet<E> extends ForwardingSet<E> implements Serializable {
  final Set<E> delegate;