import org.jspecify.annotations.Nullable;

/**
 * An object representing the differences between two maps.
 *
 * @author Kevin Bourrillion
 * @since 2.0
 */
@DoNotMock("Use Maps.difference")
@GwtCompatible
public interface MapDifference<K extends @Nullable Object, V extends @Nullable Object> {
  /**
   * Returns {@code true} if there are no differences between the two maps; that is, if the maps are
   * equal.
   */

        Instant monotonic = MonotonicClock.now();
        Instant system = Instant.now();

        // The difference should be relatively small (allow for 1 second max)
        Duration difference = Duration.between(monotonic, system).abs();
        assertTrue(difference.getSeconds() <= 1, "Monotonic time should be reasonably aligned with system time");
    }

 * limitations under the License.
 */

package com.google.common.collect;

import static com.google.common.base.Predicates.not;
import static com.google.common.collect.Multisets.difference;
import static com.google.common.collect.Multisets.intersection;
import static com.google.common.collect.Multisets.sum;
import static com.google.common.collect.Multisets.union;

	}
	for j := 1; j < len(q); j++ {
		q[j-1] = 1 // difference is only found on the last byte
		for i := range b {
			idx := Index(b[i:], q[:j])
			if idx != -1 {
				t.Fatalf("Index(b[%d:], q[:%d])=%d, want -1\n", i, j, idx)
			}
		}
		q[j-1] = 0
	}

	// Test differing alignments and sizes of q which always end on a page boundary.
	q[len(q)-1] = 1 // difference is only found on the last byte
	for j := 0; j < len(q); j++ {

## Current Behavior
<!--- If describing a bug, tell us what happens instead of the expected behavior -->
<!--- If suggesting a change/improvement, explain the difference from current behavior -->

## Possible Solution
<!--- Not obligatory, but suggest a fix/reason for the bug, -->
<!--- or ideas how to implement the addition or change -->

## Steps to Reproduce (for bugs)

 * limitations under the License.
 */

package com.google.common.collect;

import static com.google.common.base.Predicates.not;
import static com.google.common.collect.Multisets.difference;
import static com.google.common.collect.Multisets.intersection;
import static com.google.common.collect.Multisets.sum;
import static com.google.common.collect.Multisets.union;

 * limitations under the License.
 */

package com.google.common.collect;

import static com.google.common.collect.Lists.transform;
import static com.google.common.collect.Sets.difference;
import static java.lang.reflect.Modifier.isPublic;
import static java.lang.reflect.Modifier.isStatic;
import static java.util.Arrays.asList;
import static org.junit.Assert.assertThrows;

   * propagated. If, on the other hand, the time limit is reached, we attempt to abort the call to
   * the target, and throw a {@link TimeoutException} to the caller.
   *
   * <p>The difference with {@link #callWithTimeout(Callable, long, TimeUnit)} is that this method
   * will ignore interrupts on the current thread.
   *
   * @param callable the Callable to execute

    }

    @Test
    void testHeartbeatUpdate() throws InterruptedException {
        long initialTime = registration.getLastHeartbeat();

        Thread.sleep(50); // Ensure sufficient time difference
        registration.updateHeartbeat();

        // After update, should not be expired with long timeout
        assertFalse(registration.isExpired(60000));

        // Verify heartbeat was actually updated

	// position to discover whether there is a blank before the parenthesis.
	// We only get here if defining a macro inside a macro.
	// This imperfect implementation means we cannot tell the difference between
	//	#define A #define B(x) x
	// and
	//	#define A #define B (x) x
	// The first definition of B has an argument, the second doesn't. Because we let