}

    /**
     * In order to reuse the glob matcher from the filesystem, we need
     * to create Path instances.  Those are only used with the toString method.
     * This hack works because the only system-dependent thing is the path
     * separator which should not be part of the groupId or artifactId.
     */
    private static Path createPathProxy(String value) {
        return (Path) Proxy.newProxyInstance(

https://www.elastic.co/guide/en/elasticsearch/reference/current/setup-upgrade.html[Elasticsearch upgrade
documentation].

[[build-source]]
== Build from source

Elasticsearch uses https://gradle.org[Gradle] for its build system.

To build a distribution for your local OS and print its output location upon
completion, run:
----
./gradlew localDistro
----

To build a distribution for another platform, run the related command:
----

import org.codelibs.fess.exception.JobProcessingException;
import org.codelibs.fess.util.InputStreamThread;
import org.codelibs.fess.util.JobProcess;

import jakarta.annotation.PreDestroy;

/**
 * Helper class for managing system processes in Fess.
 * This class provides functionality to start, stop, and manage external processes
 * such as crawler processes, with proper resource cleanup and lifecycle management.
 */
public class ProcessHelper {

            queryCommand.isSearchField(testField);
        }

        // Measure Set-based lookup
        long startTime = System.nanoTime();
        for (int i = 0; i < 10000; i++) {
            queryCommand.isSearchField(testField);
        }
        long duration = System.nanoTime() - startTime;

        // Should complete quickly (relaxed threshold for CI environments)

  static void delay(long millis) throws InterruptedException {
    long startTime = System.nanoTime();
    long ns = millis * 1000 * 1000;
    for (; ; ) {
      if (millis > 0L) {
        Thread.sleep(millis);
      } else {
        // too short to sleep
        Thread.yield();
      }
      long d = ns - (System.nanoTime() - startTime);
      if (d > 0L) {
        millis = d / (1000 * 1000);
      } else {

    }

    @Test
    @DisplayName("EmptyIterator should be lightweight and efficient")
    void testPerformanceCharacteristics() {
        // When - create many instances quickly
        long startTime = System.currentTimeMillis();

        for (int i = 0; i < 10000; i++) {
            EmptyIterator iterator = new EmptyIterator();
            iterator.hasNext();
            iterator.next();
            iterator.remove();

          if (!response.isSuccessful()) throw new IOException("Unexpected code " + response);

          for (Certificate certificate : response.handshake().peerCertificates()) {
            System.out.println(CertificatePinner.pin(certificate));
          }
        }
      }
    ```

### Customizing Trusted Certificates ([.kt][CustomTrustKotlin], [.java][CustomTrustJava])

      if (initialBytes == null) {
        return checkNotNull(bytes);
      } else {
        byte[] result = new byte[initialBytes.length + bytes.length];
        System.arraycopy(initialBytes, 0, result, 0, initialBytes.length);
        System.arraycopy(bytes, 0, result, initialBytes.length, bytes.length);
        return result;
      }
    }

    @Override
    public byte[] getSinkContents() throws IOException {

        Encdec.enc_uint32le(0x00000000, blob, 4); // Reserved
        Encdec.enc_uint64le(nanos1601, blob, 8);
        System.arraycopy(clientChallenge, 0, blob, 16, 8);
        Encdec.enc_uint32le(0x00000000, blob, 24); // Unknown
        System.arraycopy(avPairs, 0, blob, 28, avPairsLength);
        Encdec.enc_uint32le(0x00000000, blob, 28 + avPairsLength);

        // Act

        NtlmPasswordAuthentication creds = new NtlmPasswordAuthentication(
                new BaseContext(new PropertyConfiguration(System.getProperties())), "domain", "user", "password");
        when(mockCifsContext.getCredentials()).thenReturn(creds);
        when(mockCifsContext.getConfig()).thenReturn(new PropertyConfiguration(System.getProperties()));
        when(mockCifsContext.getNameServiceClient()).thenReturn(mockNameServiceClient);