// Then
        assertEquals(expectedException, actualException);
        verify(response).getException();
    }

    @Test
    @DisplayName("Test Response interface methods - exception")
    void testException() {
        // Given
        Exception ex = new RuntimeException("Runtime error");
        doNothing().when(response).exception(ex);

        // When
        response.exception(ex);

        // Then

    assertThat(
            new AbstractFuture<Object>() {
              {
                set(value);
              }
            }.get())
        .isEqualTo(value);
  }

  public void testException() throws InterruptedException {
    Throwable failure = new Throwable();
    AbstractFuture<String> future =
        new AbstractFuture<String>() {
          {
            setException(failure);
          }

    assertThat(
            new AbstractFuture<Object>() {
              {
                set(value);
              }
            }.get())
        .isEqualTo(value);
  }

  public void testException() throws InterruptedException {
    Throwable failure = new Throwable();
    AbstractFuture<String> future =
        new AbstractFuture<String>() {
          {
            setException(failure);
          }

    assertFalse(input.isCancelled());
    assertFalse(input.isDone());
  }

  @J2ktIncompatible
  @GwtIncompatible // used only in GwtIncompatible tests
  private static class TestException extends Exception {

    TestException(@Nullable Throwable cause) {
      super(cause);
    }
  }

  @J2ktIncompatible
  @GwtIncompatible // used only in GwtIncompatible tests

    assertFalse(input.isCancelled());
    assertFalse(input.isDone());
  }

  @J2ktIncompatible
  @GwtIncompatible // used only in GwtIncompatible tests
  private static class TestException extends Exception {

    TestException(@Nullable Throwable cause) {
      super(cause);
    }
  }

  @J2ktIncompatible
  @GwtIncompatible // used only in GwtIncompatible tests

 */

package com.google.common.collect.testing.testers;

import com.google.common.annotations.GwtCompatible;

/** Exception classes for use in tests. */
@GwtCompatible
final class TestExceptions {
  static final class SomeError extends Error {}

  static final class SomeCheckedException extends Exception {}

  static final class SomeOtherCheckedException extends Exception {}

 */

package com.google.common.collect.testing.testers;

import com.google.common.annotations.GwtCompatible;

/** Exception classes for use in tests. */
@GwtCompatible
final class TestExceptions {
  static final class SomeError extends Error {}

  static final class SomeCheckedException extends Exception {}

  static final class SomeOtherCheckedException extends Exception {}

import com.google.common.annotations.GwtCompatible;
import org.jspecify.annotations.NullUnmarked;

/** Exception classes for use in tests. */
@GwtCompatible
@NullUnmarked
final class TestExceptions {
  static class SomeError extends Error {}

  static class SomeCheckedException extends Exception {}

  static class SomeOtherCheckedException extends Exception {}

import com.google.common.annotations.GwtCompatible;
import org.jspecify.annotations.NullUnmarked;

/** Exception classes for use in tests. */
@GwtCompatible
@NullUnmarked
final class TestExceptions {
  static class SomeError extends Error {}

  static class SomeCheckedException extends Exception {}

  static class SomeOtherCheckedException extends Exception {}

package com.google.common.base;

import com.google.common.annotations.GwtCompatible;
import org.jspecify.annotations.NullUnmarked;

/** Exception classes for use in tests. */
@GwtCompatible
@NullUnmarked
final class TestExceptions {
  static class SomeError extends Error {}

  static class SomeCheckedException extends Exception {}

  static class SomeOtherCheckedException extends Exception {}