### Restart After Crash { #restart-after-crash }

But in those cases with really bad errors that crash the running **process**, you would want an external component that is in charge of **restarting** the process, at least a couple of times...

/// tip

    val elapsedUntilPong3 = System.nanoTime() - startNanos
    assertThat(TimeUnit.NANOSECONDS.toMillis(elapsedUntilPong3).toDouble())
      .isCloseTo(1500.0, 250.0)

    // The client pinged the server 3 times, and it has ponged back 3 times.
    assertThat(webSocket.sentPingCount()).isEqualTo(3)
    assertThat(server.receivedPingCount()).isEqualTo(3)
    assertThat(webSocket.receivedPongCount()).isEqualTo(3)

            long lastAccess = currentTime;

            // When/Then
            assertDoesNotThrow(() -> mockResource.setFileTimes(createTime, lastModified, lastAccess),
                    "Setting file times should not throw exception");
            verify(mockResource).setFileTimes(createTime, lastModified, lastAccess);
        }

        @Test
        @DisplayName("individual time setters should work correctly")

import java.util.concurrent.atomic.AtomicInteger;
import junit.framework.TestCase;
import org.jspecify.annotations.NullUnmarked;

/**
 * Tests relating to cache expiration: make sure entries expire at the right times, make sure
 * expired entries don't show up, etc.
 *
 * @author mike nonemacher
 */
@SuppressWarnings("deprecation") // tests of deprecated method
@NullUnmarked
public class CacheExpirationTest extends TestCase {

import org.codelibs.core.io.CopyUtil;
import org.codelibs.core.io.FileUtil;
import org.codelibs.core.io.InputStreamUtil;
import org.codelibs.core.lang.StringUtil;
import org.codelibs.core.timer.TimeoutManager;
import org.codelibs.core.timer.TimeoutTask;
import org.codelibs.fess.crawler.Constants;
import org.codelibs.fess.crawler.builder.RequestDataBuilder;
import org.codelibs.fess.crawler.client.AbstractCrawlerClient;

   *         .putEdgeValue(BERLIN, BRUSSELS, kilometers(764))
   *         .addNode(REYKJAVIK)
   *         .build();
   * }
   *
   * <p>Builder instances can be reused; it is safe to call {@link #build} multiple times to build
   * multiple graphs in series. Each new graph contains all the elements of the ones created before
   * it.
   *
   * @since 28.0
   */
  public static class Builder<N, V> {

import java.nio.charset.Charset;
import java.nio.file.Files;

import org.codelibs.core.exception.IORuntimeException;
import org.codelibs.core.net.URLUtil;
import org.codelibs.core.nio.ChannelUtil;
import org.codelibs.core.timer.TimeoutManager;

/**
 * Utility class for handling {@link File}.
 *
 * @author higa
 */
public abstract class FileUtil {

    /**
     * Do not instantiate.
     */
    protected FileUtil() {

        byte[] buffer = new byte[1024];
        int bufferIndex = 0;

        // Set structure size to 2
        SMBUtil.writeInt2(2, buffer, bufferIndex);

        // Call readBytesWireFormat multiple times
        for (int i = 0; i < 5; i++) {
            int result = response.readBytesWireFormat(buffer, bufferIndex);
            assertEquals(2, result, "Should consistently return 2 on call " + (i + 1));
        }
    }

                    if (errorCount > maxErrorCount) {
                        throw e;
                    }
                    errorCount++;
                    logger.warn("Failed to access data. Retry to access it {} times.", errorCount, e);
                } finally {
                    if (systemHelper.isForceStop()) {
                        finishCrawling = true;
                        if (logger.isDebugEnabled()) {

					if err == nil {
						modTime = time.Unix(0, t)
					}
				}
			}
			// Fallback for older uploads without time in the ID.
			if modTime.IsZero() {
				wait := deleteMultipartCleanupSleeper.Timer(ctx)
				fi, err := disk.ReadVersion(ctx, "", minioMetaMultipartBucket, uploadIDPath, "", ReadOptions{})
				if err != nil {
					return nil
				}
				modTime = fi.ModTime
				wait()
			}