}

    @Override
    protected Map<String, ?> getInheritableEnvironment() {
        // Filter out any environment variables that should not be inherited.
        return Jvm.getInheritableEnvironmentVariables(super.getInheritableEnvironment());
    }

    @Override
    public JavaForkOptions copyTo(JavaForkOptions target) {
        super.copyTo(target);
        options.copyTo(target);

                    return Optional.of(toolsJar);
                }
            }
        }

        return Optional.absent();
    }

    public static Map<String, ?> getInheritableEnvironmentVariables(Map<String, ?> envVars) {
        Map<String, Object> vars = new HashMap<String, Object>();
        for (Map.Entry<String, ?> entry : envVars.entrySet()) {

    private void clearEnvironmentVars(MutableCommandLineToolContext invocation, String... names) {
        // TODO: This check should really be done in the compiler process
        Map<String, ?> environmentVariables = Jvm.getInheritableEnvironmentVariables(System.getenv());
        for (String name : names) {
            Object value = environmentVariables.get(name);
            if (value != null) {

            'OTHER': 'value',
            'TERM_SESSION_ID': '1234',
            'ITERM_SESSION_ID': '1234'
        ]

        def jvm = Jvm.current()

        expect:
        jvm.getInheritableEnvironmentVariables(env) == ['OTHER': 'value']
    }