} catch (InterruptedException e) {
        // ignore
      }
    }
  }

  /**
   * Cleans up the given reference and any other references already in the queue. Catches and logs
   * all throwables.
   *
   * @return true if the caller should continue to wait for more references to be added to the
   *     queue, false if the associated FinalizableReferenceQueue is no longer referenced.
   */

import static com.google.common.base.Throwables.getCausalChain;
import static com.google.common.base.Throwables.getCauseAs;
import static com.google.common.base.Throwables.getRootCause;
import static com.google.common.base.Throwables.getStackTraceAsString;
import static com.google.common.base.Throwables.lazyStackTrace;
import static com.google.common.base.Throwables.lazyStackTraceIsLazy;

      } catch (InterruptedException e) {
        // ignore
      }
    }
  }

  /**
   * Cleans up the given reference and any other references already in the queue. Catches and logs
   * all throwables.
   *
   * @return true if the caller should continue to wait for more references to be added to the
   *     queue, false if the associated FinalizableReferenceQueue is no longer referenced.
   */

    @Override
    public void suppress(Closeable closeable, Throwable thrown, Throwable suppressed) {
      suppressions.add(new Suppression(closeable, thrown, suppressed));
    }
  }

  /** Record of a call to suppress. */
  private static class Suppression {
    private final Closeable closeable;
    private final Throwable thrown;
    private final Throwable suppressed;

            }

            // reactor failure modes
            if (t instanceof RuntimeException || !(t instanceof Exception)) {
                // fail fast on RuntimeExceptions, Errors and "other" Throwables
                // assume these are system errors and further build is meaningless
                buildContext.getReactorBuildStatus().halt();

 * the License.
 */

package com.google.common.io;

import static com.google.common.base.Preconditions.checkArgument;
import static com.google.common.base.Throwables.throwIfUnchecked;
import static com.google.common.collect.Sets.newConcurrentHashSet;
import static java.util.Objects.requireNonNull;

import com.google.common.annotations.Beta;

    service.runFirstBarrier.await();
    service.runSecondBarrier.await();
    assertThrows(CancellationException.class, () -> future.get());
    // An execution exception holds a runtime exception (from throwables.propagate) that holds our
    // original exception.
    assertEquals(service.runException, service.failureCause());
    assertEquals(Service.State.FAILED, service.state());
  }

    service.runFirstBarrier.await();
    service.runSecondBarrier.await();
    assertThrows(CancellationException.class, () -> future.get());
    // An execution exception holds a runtime exception (from throwables.propagate) that holds our
    // original exception.
    assertEquals(service.runException, service.failureCause());
    assertEquals(Service.State.FAILED, service.state());
  }

   */
  public <X extends Throwable> ClosingFuture<V> catching(
      Class<X> exceptionType, ClosingFunction<? super X, ? extends V> fallback, Executor executor) {
    return catchingMoreGeneric(exceptionType, fallback, executor);
  }

  // Avoids generic type capture inconsistency problems where |? extends V| is incompatible with V.
  private <X extends Throwable, W extends V> ClosingFuture<V> catchingMoreGeneric(

        catchingAsync(failingFuture, Throwable.class, fallback, directExecutor());
    assertEquals(20, getDone(faultTolerantFuture).intValue());
    fallback.verifyCallCount(1);
  }

  @J2ktIncompatible
  @GwtIncompatible // non-Throwable exceptionType
  public void testCatchingAsync_inputCancelledWithoutFallback() throws Exception {
    AsyncFunction<Throwable, Integer> fallback = unexpectedAsyncFunction();