timothy65535 edited a comment on issue #940:
URL:
https://github.com/apache/incubator-kyuubi/issues/940#issuecomment-900045139
> Seems we can sleep a while if read line is null
For `BufferedReader`, we can use `reader.ready()`.
```
while (true) {
if (reader.ready()) {
var line: String = reader.readLine
// logic
} else {
Thread.sleep(300)
}
}
```
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