class ExecBuilder {

    public final AsynchronousExecResult asyncExec() throws IOException {
        DefaultExecuteResultHandler resultHandler = new DefaultExecuteResultHandler();
        getExecutor().execute(getCommandLine(), env, resultHandler);
        return new AsynchronousExecResult(resultHandler, stdOut, stdErr, toString());
    }

    public  ExecBuilder(final String command);
    public  ExecBuilder(final String command, final boolean handleQuoting);

}