*     constructor that omits the cause.
   */
  @Deprecated
  protected UncheckedExecutionException() {}

  /**
   * Creates a new instance with the given detail message and no cause.
   *
   * @deprecated Prefer {@linkplain UncheckedExecutionException(String, Throwable)} a constructor
   *     that accepts a cause: Users of this class typically expect for instances to have a non-null

          }

          @Override
          public @Nullable Object getIfPresent(Object key) {
            return valueRef.get();
          }
        };

    UncheckedExecutionException expected =
        assertThrows(UncheckedExecutionException.class, () -> cache.getUnchecked(new Object()));
    assertThat(expected).hasCauseThat().isEqualTo(cause);

    Object newValue = new Object();
    valueRef.set(newValue);

  }

  public void testCallWithTimeout_wrapsUncheckedException() throws Exception {
    Exception exception = new RuntimeException("test");
    UncheckedExecutionException e =
        assertThrows(
            UncheckedExecutionException.class,
            () -> timeLimiter.callWithTimeout(callableThrowing(exception), DELAY_MS, MILLISECONDS));
    assertThat(e).hasCauseThat().isEqualTo(exception);
  }

      assertThat(result.get(i)).isInstanceOf(UncheckedExecutionException.class);
      assertThat((UncheckedExecutionException) result.get(i)).hasCauseThat().isSameInstanceAs(e);
    }

    // subsequent calls should call the loader again, not get the old exception
    assertThrows(UncheckedExecutionException.class, () -> cache.getUnchecked("bar"));

        () -> service.runWithTimeout(GOOD_RUNNABLE, NOT_ENOUGH_MS, MILLISECONDS));
  }

  public void testRunWithTimeout_badRunnableWithEnoughTime() throws Exception {
    UncheckedExecutionException expected =
        assertThrows(
            UncheckedExecutionException.class,
            () -> service.runWithTimeout(BAD_RUNNABLE, ENOUGH_MS, MILLISECONDS));
    assertThat(expected).hasCauseThat().isInstanceOf(SampleRuntimeException.class);
  }

        () -> service.runWithTimeout(GOOD_RUNNABLE, NOT_ENOUGH_MS, MILLISECONDS));
  }

  public void testRunWithTimeout_badRunnableWithEnoughTime() throws Exception {
    UncheckedExecutionException expected =
        assertThrows(
            UncheckedExecutionException.class,
            () -> service.runWithTimeout(BAD_RUNNABLE, ENOUGH_MS, MILLISECONDS));
    assertThat(expected).hasCauseThat().isInstanceOf(SampleRuntimeException.class);
  }

import com.google.common.base.Function;
import com.google.common.collect.ImmutableMap;
import com.google.common.util.concurrent.ExecutionError;
import com.google.common.util.concurrent.UncheckedExecutionException;
import com.google.errorprone.annotations.CanIgnoreReturnValue;
import java.util.concurrent.ConcurrentMap;
import java.util.concurrent.ExecutionException;

/**

  }

  public void testCallWithTimeout_wrapsUncheckedException() throws Exception {
    Exception exception = new RuntimeException("test");
    UncheckedExecutionException e =
        assertThrows(
            UncheckedExecutionException.class,
            () -> timeLimiter.callWithTimeout(callableThrowing(exception), DELAY_MS, MILLISECONDS));
    assertThat(e).hasCauseThat().isEqualTo(exception);
  }

  public void testGetUnchecked_executionExceptionChecked() {
    UncheckedExecutionException expected =
        assertThrows(
            UncheckedExecutionException.class, () -> getUnchecked(FAILED_FUTURE_CHECKED_EXCEPTION));
    assertThat(expected).hasCauseThat().isEqualTo(CHECKED_EXCEPTION);
  }

  public void testGetUnchecked_executionExceptionUnchecked() {
    UncheckedExecutionException expected =
        assertThrows(

  public void testGetUnchecked_executionExceptionChecked() {
    UncheckedExecutionException expected =
        assertThrows(
            UncheckedExecutionException.class, () -> getUnchecked(FAILED_FUTURE_CHECKED_EXCEPTION));
    assertThat(expected).hasCauseThat().isEqualTo(CHECKED_EXCEPTION);
  }

  public void testGetUnchecked_executionExceptionUnchecked() {
    UncheckedExecutionException expected =
        assertThrows(