Question about usage of org.apache.commons.exec.ExecuteWatchdog

[Carsten Dreesbach]

I'm a little confused about why the code example 
<https://github.com/apache/commons-exec/blob/4055e401ef7e4ad763cc69b892135b449baf0f13/src/main/java/org/apache/commons/exec/ExecuteWatchdog.java#L32-L34> 
says to check executor.isFailure(exitValue) to see if the process was 
killed by the watchdog. Since the only way that 
watchdog.killedProcess())could ever return true, why would the extra 
exit status be necessary? It seems to me that just checking 
watchdog.killedProcess() by itself would be sufficient - or am I missing 
something here?

Thanks,

Carsten