public void testCloseExceptionsSuppressed_whenExceptionThrownFromTryBlock() throws IOException {
    Closer closer = new Closer(suppressor);

    IOException tryException = new IOException();
    IOException c1Exception = new IOException();
    IOException c2Exception = new IOException();

    TestCloseable c1 = closer.register(TestCloseable.throwsOnClose(c1Exception));

  }

  @J2ktIncompatible
  @GwtIncompatible
  public void testAsAsyncCallable_exception() throws Exception {
    final Exception expected = new IllegalArgumentException();
    Callable<String> callable =
        new Callable<String>() {
          @Override
          public String call() throws Exception {
            throw expected;
          }
        };

    AsyncCallable<String> asyncCallable =

  private static boolean hasConstructorUsableByGetChecked(
      Class<? extends Exception> exceptionClass) {
    try {
      Exception unused = newWithCause(exceptionClass, new Exception());
      return true;
    } catch (Throwable t) { // sneaky checked exception
      return false;
    }
  }

  private static <X extends Exception> X newWithCause(Class<X> exceptionClass, Throwable cause) {

  final Collection<? extends Throwable> exceptions;

  private ClusterException(Collection<? extends Throwable> exceptions) {
    super(
        exceptions.size() + " exceptions were thrown. The first exception is listed as a cause.",
        exceptions.iterator().next());
    ArrayList<? extends Throwable> temp = new ArrayList<>(exceptions);
    this.exceptions = Collections.unmodifiableCollection(temp);
  }

import java.io.File;
import java.io.IOException;

/**
 * Tests for {@link Files#fileTraverser()}.
 *
 * @author Jens Nyman
 */

public class FilesFileTraverserTest extends IoTestCase {

  private File rootDir;

  @Override
  public void setUp() throws IOException {
    rootDir = createTempDir();
  }

  public void testFileTraverser_emptyDirectory() throws Exception {

    Exception exception = new SampleCheckedException();
    ExecutionException e =
        assertThrows(
            ExecutionException.class,
            () ->
                timeLimiter.callWithTimeout(
                    callableThrowing(exception), DELAY_MS, TimeUnit.MILLISECONDS));
    assertThat(e.getCause()).isEqualTo(exception);
  }

import java.io.ByteArrayInputStream;
import java.io.FilterInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.util.Collections;
import java.util.List;

/**
 * Test class for {@link MultiInputStream}.
 *
 * @author Chris Nokleberg
 */
public class MultiInputStreamTest extends IoTestCase {

  public void testJoin() throws Exception {
    joinHelper(0);
    joinHelper(1);
    joinHelper(0, 0, 0);

import java.io.ByteArrayInputStream;
import java.io.FilterInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.util.Collections;
import java.util.List;

/**
 * Test class for {@link MultiInputStream}.
 *
 * @author Chris Nokleberg
 */
public class MultiInputStreamTest extends IoTestCase {

  public void testJoin() throws Exception {
    joinHelper(0);
    joinHelper(1);
    joinHelper(0, 0, 0);

  }

  public void testConstructor() throws Exception {
    Invokable<A, A> invokable = A.constructor();
    assertTrue(invokable.isPublic());
    assertFalse(invokable.isPackagePrivate());
    assertFalse(invokable.isAbstract());
    assertFalse(invokable.isStatic());
    assertTrue(invokable.isAnnotationPresent(Tested.class));
  }

  public void testAbstractMethod() throws Exception {

import static com.google.common.util.concurrent.FuturesGetCheckedInputs.OTHER_THROWABLE;
import static com.google.common.util.concurrent.FuturesGetCheckedInputs.RUNTIME_EXCEPTION;
import static com.google.common.util.concurrent.FuturesGetCheckedInputs.RUNTIME_EXCEPTION_FUTURE;
import static com.google.common.util.concurrent.FuturesGetCheckedInputs.UNCHECKED_EXCEPTION;