} else {
      assertTrue(desc, isBoolean(method));
    }

    switch (method.getExceptionTypes().length) {
      case 0:
        assertFalse(desc, isInterruptible(method));
        break;
      case 1:
        assertTrue(desc, isInterruptible(method));
        break;
      default:
        fail(desc);
    }

    if (isEnterIf(method)) {
      assertTrue(desc, isGuarded(method));

    } else {
      assertTrue(desc, isBoolean(method));
    }

    switch (method.getExceptionTypes().length) {
      case 0:
        assertFalse(desc, isInterruptible(method));
        break;
      case 1:
        assertTrue(desc, isInterruptible(method));
        break;
      default:
        fail(desc);
    }

    if (isEnterIf(method)) {
      assertTrue(desc, isGuarded(method));

         * interrupting thread. In theory, interruptTask() should be very fast, but due to
         * InterruptibleChannel and JavaLangAccess.blockedOn(Thread, Interruptible), it isn't
         * predictable what work might be done. (e.g., close a file and flush buffers to disk). To
         * protect ourselves from this, we park ourselves and tell our interrupter that we did so.
         */

import java.util.concurrent.TimeoutException;
import java.util.concurrent.locks.Condition;
import java.util.concurrent.locks.Lock;
import org.checkerframework.checker.nullness.qual.Nullable;

/**
 * Utilities for treating interruptible operations as uninterruptible. In all cases, if a thread is
 * interrupted during such a call, the call continues to block until the result is available or the
 * timeout elapses, and only then re-interrupts the thread.
 *