long threadEnd = System.nanoTime();
                    totalTime.addAndGet(threadEnd - threadStart);

                } catch (InterruptedException e) {
                    Thread.currentThread().interrupt();
                } finally {
                    endLatch.countDown();
                }
            });
        }

        startLatch.countDown(); // Start all threads

        });
    }

    private void addMdcContext(Map<String, Object> context) {
        // Add MDC context efficiently
        context.put("thread", Thread.currentThread().getName());
        context.put("threadId", Thread.currentThread().getId());

        String sessionId = MDC.get("sessionId");
        if (sessionId != null) {
            context.put("sessionId", sessionId);
        }

        CompletableFuture<Void> asyncTask = CompletableFuture.runAsync(() -> {
            byte[] contextHandle = registration.getContextHandle();

            while (!Thread.currentThread().isInterrupted() && registrations.containsKey(registrationId)
                    && registration.getState() == WitnessRegistrationState.REGISTERED) {

                try {

    String oldName = Thread.currentThread().getName();
    renamingExecutor.execute(
        new Runnable() {
          @Override
          public void run() {
            assertEquals("FooBar", Thread.currentThread().getName());
          }
        });
    assertEquals(oldName, Thread.currentThread().getName());
  }

  public void testExecutors_nullCheck() throws Exception {

 * the License.
 */

package com.google.common.util.concurrent;

import static com.google.common.base.Preconditions.checkArgument;
import static java.lang.Thread.currentThread;
import static java.util.Arrays.asList;

import com.google.common.annotations.GwtIncompatible;
import com.google.common.annotations.J2ktIncompatible;
import com.google.common.annotations.VisibleForTesting;

                    try {
                        // Simulate some processing time
                        Thread.sleep(10);
                    } catch (InterruptedException e) {
                        Thread.currentThread().interrupt();
                    }
                    return Arrays.asList(createMockNotification("file" + watchCount + ".txt"));
                }
            }

            @Override

   * application successfully.
   *
   * <p>Example usage:
   *
   * <pre>
   * public static void main(String[] args) {
   *   Thread.currentThread().setUncaughtExceptionHandler(UncaughtExceptionHandlers.systemExit());
   *   ...
   * </pre>
   *
   * <p>The returned handler logs any exception at severity {@code SEVERE} and then shuts down the

        long initialTime = channelInfo.getLastActivityTime();

        // Wait a bit and update activity
        try {
            Thread.sleep(10);
        } catch (InterruptedException e) {
            Thread.currentThread().interrupt();
        }

        channelInfo.updateActivity();
        assertTrue(channelInfo.getLastActivityTime() > initialTime);
        assertTrue(channelInfo.getIdleTime() >= 0);
    }

    @Test

                    }

                    // In a real implementation, we would process actual change notifications here

                } catch (InterruptedException e) {
                    Thread.currentThread().interrupt();
                    break;
                } catch (Exception e) {
                    if (handle.isActive()) {

            return null;
        }
    }

    private void loadTestProperties() {
        // Load system.properties from test classpath
        try (InputStream is = Thread.currentThread().getContextClassLoader().getResourceAsStream("system.properties")) {
            if (is != null) {
                Properties props = new Properties();
                props.load(is);