@Override
    public T create() {
        if (toolchain != null) {
            return chooseSpecForToolchain();
        }

        if (compileOptions.isFork()) {
            return chooseSpecFromCompileOptions(Jvm.current().getJavaHome());
        }

        return getDefaultSpec();
    }

    private T chooseSpecForToolchain() {
        File toolchainJavaHome = toolchain.getInstallationPath().getAsFile();