long start = System.currentTimeMillis();
        for (int i = 0; i < num; i++) {
            System.out.println("test" + i);
        }
        final long sysout = System.currentTimeMillis() - start;
        start = System.currentTimeMillis();
        for (int i = 0; i < num; i++) {
            logger.fatal("test" + i);
        }
        final long logger = System.currentTimeMillis() - start;

        new ReleasedVersions(snapshot, rc, versions)
    }

    ReleasedVersion releasedVersion(String version, long date = System.currentTimeMillis()) {
        new ReleasedVersion(version, format.format(new Date(date)))
    }

    ReleasedVersion snapshot(String baseVersion, long date = System.currentTimeMillis()) {
        releasedVersion("${baseVersion}-${format.format(new Date(date))}", date)
    }

                        + System.getProperty("maven.home", "<unknown Maven " + "home>")))
                .append(ls);
        version.append("Java version: ")
                .append(System.getProperty("java.version", "<unknown Java version>"))
                .append(", vendor: ")
                .append(System.getProperty("java.vendor", "<unknown vendor>"))
                .append(", runtime: ")

        try {
            parser.parseArgument(args);
        } catch (final CmdLineException e) {
            System.err.println(e.getMessage());
            System.err.println("java " + Crawler.class.getCanonicalName() + " [options...] arguments...");
            parser.printUsage(System.err);
            return;
        }

        if (logger.isDebugEnabled()) {
            try {

            return a;
        }
        @SuppressWarnings("unchecked")
        final T[] array = (T[]) Array.newInstance(a.getClass().getComponentType(), a.length + b.length);
        System.arraycopy(a, 0, array, 0, a.length);
        System.arraycopy(b, 0, array, a.length, b.length);
        return array;
    }

    /**
     * Returns an array that is the concatenation of two arrays.
     * <p>

  cp -r "${TFCI_MACOS_CROSS_COMPILE_SDK_SOURCE}/System/Library/Frameworks/Security.framework" "${TFCI_MACOS_CROSS_COMPILE_SDK_DEST}/System/Library/Frameworks/Security.framework"
  cp -r "${TFCI_MACOS_CROSS_COMPILE_SDK_SOURCE}/System/Library/Frameworks/SystemConfiguration.framework" "${TFCI_MACOS_CROSS_COMPILE_SDK_DEST}/System/Library/Frameworks/SystemConfiguration.framework"

     */
    public ExecJob lastaEnv(final String env) {
        lastaEnv = env;
        return this;
    }

    /**
     * Adds a system property to the command list.
     * If the property exists in the system, it uses that value with optional append value.
     * Otherwise, it uses the default value if provided.
     *
     * @param cmdList the command list to add the property to

/**
 * A Clock implementation that combines monotonic timing with wall-clock time.
 * <p>
 * This class provides precise time measurements using {@link System#nanoTime()}
 * while maintaining wall-clock time information in UTC. The wall-clock time
 * is computed from the monotonic duration since system start to ensure consistency
 * between time measurements.
 * <p>
 * This implementation is singleton-based and always uses UTC timezone. The clock

 */
public class SystemProperties {
    /**
     * Thread-safe System.properties copy implementation.
     */
    public static void addSystemProperties(Properties props) {
        props.putAll(getSystemProperties());
    }

    /**
     * Returns a copy of {@link System#getProperties()} in a thread-safe manner.
     *
     * @return {@link System#getProperties()} obtained in a thread-safe manner.
     */

    System.out.printf("%.2f Executing call.%n", (System.nanoTime() - startNanos) / 1e9f);
    try (Response response = call.execute()) {
      System.out.printf("%.2f Call was expected to fail, but completed: %s%n",
          (System.nanoTime() - startNanos) / 1e9f, response);
    } catch (IOException e) {
      System.out.printf("%.2f Call failed as expected: %s%n",
          (System.nanoTime() - startNanos) / 1e9f, e);
    }
  }