/**
     * Set the properties to be used for configuration.
     *
     * @param prp the properties to set
     */
    public static void setProperties(final Properties prp) {
        Config.prp = new Properties(prp);
        try {
            Config.prp.putAll(System.getProperties());
        } catch (final SecurityException se) {
            if (LogStream.level > 1) {

            if (sourceDominant) {
                merged.putAll(target.getProperties());
                putAll(merged, source.getProperties(), CHILD_DIRECTORY_PROPERTY);
            } else {
                putAll(merged, source.getProperties(), CHILD_DIRECTORY_PROPERTY);
                merged.putAll(target.getProperties());
            }
            target.setProperties(merged);
            target.setLocation(

        return getProperties().elements();
    }

    @Override
    public Set<java.util.Map.Entry<Object, Object>> entrySet() {
        return getProperties().entrySet();
    }

    @Override
    public boolean equals(final Object o) {
        return getProperties().equals(o);
    }

    @Override
    public Object get(final Object key) {
        return getProperties().get(key);
    }

     *
     * @param cmdList the command list to add properties to
     */
    protected void addFessConfigProperties(final List<String> cmdList) {
        System.getProperties()
                .keySet()
                .stream()
                .filter(k -> k != null && k.toString().startsWith(Constants.FESS_CONFIG_PREFIX))

        Model out = interpolator.interpolateModel(model, new File("."), createModelBuildingRequest(context), collector);
        assertProblemFree(collector);

        assertEquals("/path/to/home", out.getProperties().get("outputDirectory"));
    }

    @Test
    public void envarExpressionThatEvaluatesToNullReturnsTheLiteralString() throws Exception {

        Map<String, String> modelProperties = new HashMap<>();

        Properties properties = getMavenProject(project).getProperties();
        if (value == null) {
            properties.remove(key);
        } else {
            properties.setProperty(key, value);
        }
    }

    @Override
    @Nonnull
    public Map<String, String> getProperties(@Nonnull Project project) {
        return Collections.unmodifiableMap(

                    property.setValue(dispatcherConfigResult.get(field.getKey()).getResult());
                    dispatcherConfig.addProperty(property);
                }
                if (!dispatcherConfig.getProperties().isEmpty()) {
                    config.addConfiguration(dispatcherConfig);
                }
            }
        }

        if (yes) {
            secDispatcher.writeConfiguration(config);

    // Properties

    /**
     * Sets the system properties to use for interpolation and profile activation. The system properties are collected
     * from the runtime environment like {@link System#getProperties()} and environment variables.
     *
     * @param systemProperties The system properties, may be {@code null}.
     * @return This request, never {@code null}.
     */

        if (logger.isDebugEnabled()) {
            try {
                ManagementFactory.getRuntimeMXBean().getInputArguments().stream().forEach(s -> logger.debug("Parameter: {}", s));
                System.getProperties()
                        .entrySet()
                        .stream()
                        .forEach(e -> logger.debug("Property: {}={}", e.getKey(),

    }

    private boolean isEnabled(Project project) {
        Object bwcEnabled = project.getExtensions().getExtraProperties().getProperties().get("bwc_tests_enabled");
        return bwcEnabled == null || (Boolean) bwcEnabled;
    }

    // TODO: implement custom extension that allows us move around of the projects between major versions and still find them