private void setupBooter()

in surefire-booter/src/main/java/org/apache/maven/surefire/booter/ForkedBooter.java [103:158]
44 lines of code
6 McCabe index (conditional complexity)

    private void setupBooter(
            String tmpDir, String dumpFileName, String surefirePropsFileName, String effectiveSystemPropertiesFileName)
            throws IOException {
        BooterDeserializer booterDeserializer =
                new BooterDeserializer(createSurefirePropertiesIfFileExists(tmpDir, surefirePropsFileName));
        setSystemProperties(new File(tmpDir, effectiveSystemPropertiesFileName));

        providerConfiguration = booterDeserializer.deserialize();
        DumpErrorSingleton.getSingleton()
                .init(providerConfiguration.getReporterConfiguration().getReportsDirectory(), dumpFileName);

        int forkNumber = booterDeserializer.getForkNumber();

        if (isDebugging()) {
            DumpErrorSingleton.getSingleton()
                    .dumpText("Found Maven process ID " + booterDeserializer.getPluginPid() + " for the fork "
                            + forkNumber + ".");
        }

        startupConfiguration = booterDeserializer.getStartupConfiguration();

        String channelConfig = booterDeserializer.getConnectionString();
        channelProcessorFactory = lookupDecoderFactory(channelConfig);
        channelProcessorFactory.connect(channelConfig);
        boolean isDebugging = isDebugging();
        boolean debug = isDebugging || providerConfiguration.getMainCliOptions().contains(LOGGING_LEVEL_DEBUG);
        ForkNodeArguments args = new ForkedNodeArg(forkNumber, debug);
        eventChannel = channelProcessorFactory.createEncoder(args);
        MasterProcessChannelDecoder decoder = channelProcessorFactory.createDecoder(args);

        flushEventChannelOnExit();

        forkingReporterFactory = createForkingReporterFactory();
        logger = forkingReporterFactory.createTestReportListener();
        commandReader = new CommandReader(decoder, providerConfiguration.getShutdown(), logger);

        pingScheduler = isDebugging ? null : listenToShutdownCommands(booterDeserializer.getPluginPid());

        systemExitTimeoutInSeconds = providerConfiguration.systemExitTimeout(DEFAULT_SYSTEM_EXIT_TIMEOUT_IN_SECONDS);

        AbstractPathConfiguration classpathConfiguration = startupConfiguration.getClasspathConfiguration();

        if (classpathConfiguration.isClassPathConfig()) {
            if (startupConfiguration.isManifestOnlyJarRequestedAndUsable()) {
                classpathConfiguration
                        .toRealPath(ClasspathConfiguration.class)
                        .trickClassPathWhenManifestOnlyClasspath();
            }
            startupConfiguration.writeSurefireTestClasspathProperty();
        }

        ClassLoader classLoader = currentThread().getContextClassLoader();
        classLoader.setDefaultAssertionStatus(classpathConfiguration.isEnableAssertions());
        boolean readTestsFromCommandReader = providerConfiguration.isReadTestsFromInStream();
        testSet = createTestSet(providerConfiguration.getTestForFork(), readTestsFromCommandReader, classLoader);
    }