// This test verifies that the handler resolution mechanism correctly skips the 'jcifs'
        // package when it is listed in the 'java.protocol.handler.pkgs' system property.
        // We use mock handlers since actual system handlers might not be available in test environment.
        System.setProperty("java.protocol.handler.pkgs", "jcifs");
        setupMockProtocolHandlers();
        URL url = new URL("http://example.com/resource");

        PrintStream originalErr = System.err;
        try {
            ByteArrayOutputStream errContent = new ByteArrayOutputStream();
            System.setErr(new PrintStream(errContent));

            String[] args = { "--help" };
            // Note: main calls System.exit, so we can't test it directly
            // Instead, we test the parsing logic separately

            System.setErr(originalErr);

                synchronized (this) {
                    ltime = System.currentTimeMillis();
                    wait();
                }

                try {
                    final double r = Math.random();
                    if (r < 0.333) {
                        f.exists();
                        //                      System.out.print('e');
                    } else if (r < 0.667) {

        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 {

      response2Body = response2.body().string();
      System.out.println("Response 2 response:          " + response2);
      System.out.println("Response 2 cache response:    " + response2.cacheResponse());
      System.out.println("Response 2 network response:  " + response2.networkResponse());
    }

    System.out.println("Response 2 equals Response 1? " + response1Body.equals(response2Body));
  }

     * The client implementation is determined by the system property.
     */
    public SwitchableHttpClient() {
        super();
        selectClient();
    }

    /**
     * Selects the appropriate HTTP client based on system property.
     */
    protected void selectClient() {
        final String clientType = System.getProperty(HTTP_CLIENT_PROPERTY);

import jakarta.annotation.PreDestroy;

/**
 * Helper class for system-level operations and utilities.
 * This class provides methods for managing system properties, handling JSP files,
 * normalizing configurations, and other system-related tasks.
 */
public class SystemHelper {

    /**
     * Constructs a new system helper.
     */
    public SystemHelper() {
        // do nothing
    }

    /**
     * Gets the system properties to use for interpolation. The system properties are collected from the runtime
     * environment like {@link System#getProperties()} and environment variables.
     *
     * @return The system properties, never {@code null}.
     */
    Properties getSystemProperties();

    /**

        ArtifactResult artifactResult = system.resolveArtifact(session, artifactRequest);
        checkArtifactResult(artifactResult, "artifact-1.0.jar");

        artifact = new DefaultArtifact("ut.simple:artifact:zip:1.0");
        artifactRequest.setArtifact(artifact);
        artifactResult = system.resolveArtifact(session, artifactRequest);

        and: 'Tracing is provided'
        result.output.contains("Test jvm system exit trace (run: 1)")
        result.output.contains("Test jvm system exit trace (run: 2)")
        result.output.contains("Test jvm system exit trace (run: 3)")
        result.output.contains("Test jvm system exit trace (run: 4)")
        result.output.contains("Test jvm system exit trace (run: 5)")
    }