// Load persisted handles on startup
        loadPersistedHandles();
        
        // Schedule periodic persistence
        scheduler.scheduleAtFixedRate(this::persistHandles, 30, 30, TimeUnit.SECONDS);
    }
    
    public static class HandleInfo implements Serializable {
        private static final long serialVersionUID = 1L;
        
        private final String path;

import static com.google.common.base.Preconditions.checkArgument;
import static java.nio.charset.StandardCharsets.UTF_8;
import static java.util.Objects.requireNonNull;
import static java.util.concurrent.TimeUnit.SECONDS;

import com.google.common.annotations.GwtIncompatible;
import com.google.common.annotations.J2ktIncompatible;
import com.google.common.base.CharMatcher;
import com.google.common.base.Defaults;

This can be quite noticeable when using `docker compose`. See this Docker Compose FAQ section for more technical details: <a href="https://docs.docker.com/compose/faq/#why-do-my-services-take-10-seconds-to-recreate-or-stop" class="external-link" target="_blank">Why do my services take 10 seconds to recreate or stop?</a>.

#### Directory Structure { #directory-structure }

You should now have a directory structure like:

```
.
├── app

    }

    @Test
    void testUTimeReadWrite() {
        byte[] buffer = new byte[4];
        long time = System.currentTimeMillis();
        // UTime is seconds since epoch, so divide by 1000
        long unixTime = time / 1000L;

        // Mocking date for timezone consistency
        TimeZone original = TimeZone.getDefault();
        try {

 */

package com.google.common.testing;

import static com.google.common.truth.Truth.assertThat;
import static java.nio.charset.StandardCharsets.UTF_8;
import static java.util.concurrent.TimeUnit.SECONDS;
import static org.junit.Assert.assertThrows;

import com.google.common.base.CharMatcher;
import com.google.common.base.Equivalence;
import com.google.common.base.Joiner;
import com.google.common.base.Predicate;

        this.cacheTemplateName = cacheTemplateName;
    }

    /**
     * Sets the facet cache duration in seconds.
     *
     * @param facetCacheDuration the cache duration in seconds
     */
    public void setFacetCacheDuration(final long facetCacheDuration) {
        this.facetCacheDuration = facetCacheDuration;
    }

    /**

    }

    /**
     * Returns an array of available data store names discovered from plugin JAR files.
     * This method implements a time-based caching mechanism that refreshes the list
     * every 60 seconds to balance performance with up-to-date plugin discovery.
     *
     * @return array of data store names sorted alphabetically, never null
     */
    public String[] getDataStoreNames() {

    /**
     * Gets the registration flags.
     *
     * @return the registration flags
     */
    public int getFlags() {
        return flags;
    }

    /**
     * Sets the timeout value in seconds.
     *
     * @param timeout the timeout value
     */
    public void setTimeout(int timeout) {
        this.timeout = timeout;
    }

    /**
     * Gets the timeout value.
     *

    /** Cache for storing group information to reduce API calls. */
    protected Cache<String, Pair<String[], String[]>> groupCache;

    /** Group cache expiry time in seconds. */
    protected long groupCacheExpiry = 10 * 60L;

    /** Use V2 endpoint. */
    protected boolean useV2Endpoint = true;

    /**
     * Initializes the Azure AD authenticator.

                    } finally {
                        latch.countDown();
                    }
                }).start();
            }

            latch.await(5, java.util.concurrent.TimeUnit.SECONDS);
            assertEquals(5, successCount.get(), "All concurrent calls should succeed");
        }
    }