当本机库中发生错误时Java退出

Question

我有本机lib crated从unix socket读取。当我无法连接到unix socket时，我想以某种方式在java中捕获它。

在cpp我有：

    if (send(fd, input, strlen(input)+1, 0) == -1) {
        //perror("send");
        retText = err("Cannot send to unix socket");
        ok = 0;
    }
    return retText;

现在在java中我只希望得到带有错误信息的retText，而是在错误时jvm关闭并打印消息：

  

java ::连接被拒绝

在java代码中我有：

    try {
        System.out.println("NATIVE EXECUTING");
        byte[] bytes = exec(socketFile, channelId, jsonCommand);
        System.out.println("NATIVE EXECUTED");
        bytes[bytes.length - 1] = (byte) ' ';
        String ret = new String(bytes, StandardCharsets.UTF_8);
        if (ret.startsWith("ERROR: ")) {
            throw new StoredException("Cannot execute rpc command: " + ret.substring(7));
        }
        return ret;
    } catch (Throwable ex) {
        System.out.println("EXCEPTION THROWN");
        throw new StoredException("Cannot execute rpc command", ex);
    }

程序输出的最后两行：

NATIVE EXECUTING
java: : Connection refused
root@tst-cln-01:~/ln#