*
   * @throws IllegalArgumentException if {@code x <= 0}
   * @throws ArithmeticException if {@code mode} is {@link RoundingMode#UNNECESSARY} and {@code x}
   *     is not a power of two
   */
  @SuppressWarnings("fallthrough")
  // TODO(kevinb): remove after this warning is disabled globally
  public static int log2(BigInteger x, RoundingMode mode) {
    checkPositive("x", checkNotNull(x));
    int logFloor = x.bitLength() - 1;

 */
@GwtCompatible
@Ignore("test runners must not instantiate and run this directly, only via suites we build")
// @Ignore affects the Android test runner, which respects JUnit 4 annotations on JUnit 3 tests.
@SuppressWarnings("JUnit4ClassUsedInJUnit3")
public class MultimapKeysTester<K, V> extends AbstractMultimapTester<K, V, Multimap<K, V>> {
  @CollectionSize.Require(SEVERAL)
  public void testKeys() {

import org.jspecify.annotations.NullUnmarked;

/**
 * Tests for {@link Objects}.
 *
 * @author Laurence Gonsalves
 */
@GwtCompatible
@NullUnmarked
public class ObjectsTest extends TestCase {

  @SuppressWarnings({
    "ObjectEqualsForPrimitives", // test of a trivial call
    "EqualsInteger", // test of a trivial call
    "EqualsLong", // b/273939864
    "EqualsDouble", // b/273939864
    "EqualsFloat", // b/273939864

   *     method
   * @throws IOException if {@code swallowIOException} is false and {@link Flushable#flush} throws
   *     an {@code IOException}.
   * @see Closeables#close
   */
  @SuppressWarnings("IdentifierName") // See Closeables.close
  public static void flush(Flushable flushable, boolean swallowIOException) throws IOException {
    try {
      flushable.flush();
    } catch (IOException e) {

import static org.junit.jupiter.api.Assertions.assertNotNull;
import static org.junit.jupiter.api.Assertions.assertTrue;

/**
 * A test which demonstrates maven's dependency management
 *
 */
@Deprecated
@SuppressWarnings("checkstyle:UnusedLocalVariable")
class ProjectInheritanceTest extends AbstractProjectInheritanceTestCase {
    // ----------------------------------------------------------------------
    //
    // p1 inherits from p0

import java.util.NoSuchElementException;
import java.util.Set;
import org.jspecify.annotations.Nullable;

/**
 * An empty contiguous set.
 *
 * @author Gregory Kick
 */
@GwtCompatible
@SuppressWarnings("rawtypes") // allow ungenerified Comparable types
final class EmptyContiguousSet<C extends Comparable> extends ContiguousSet<C> {
  EmptyContiguousSet(DiscreteDomain<C> domain) {
    super(domain);
  }

  @Override

import junit.framework.TestCase;
import org.jspecify.annotations.NullUnmarked;

/**
 * @author David Beaumont
 */
@GwtCompatible
@NullUnmarked
public class ArrayBasedEscaperMapTest extends TestCase {
  @SuppressWarnings("nullness") // test of a bogus call
  public void testNullMap() {
    assertThrows(NullPointerException.class, () -> ArrayBasedEscaperMap.create(null));
  }

  public void testEmptyMap() {

package org.apache.maven.artifact.factory;

import org.apache.maven.artifact.Artifact;
import org.apache.maven.artifact.versioning.VersionRange;

/**
 * ArtifactFactory - deprecated
 */
@Deprecated
@SuppressWarnings("checkstyle:parameternumber")
public interface ArtifactFactory {
    @Deprecated
    String ROLE = ArtifactFactory.class.getName();

                VersionRange.createFromVersion(version),
                scope,
                type,
                classifier,
                artifactHandler,
                false);
    }

    @SuppressWarnings("checkstyle:ParameterNumber")
    public DefaultArtifact(
            String groupId,
            String artifactId,
            String version,
            String scope,
            String type,

   *     JVM
   * @param timeUnit unit of time for the time parameter
   * @return an unmodifiable version of the input which will not hang the JVM
   */
  @J2ktIncompatible
  @GwtIncompatible // TODO
  @SuppressWarnings("GoodTime") // should accept a java.time.Duration
  public static ExecutorService getExitingExecutorService(
      ThreadPoolExecutor executor, long terminationTimeout, TimeUnit timeUnit) {