Can't debug Watch

[gyorokpeter]

I'm getting an error:

java.lang.IllegalArgumentException: Expected the field `containers` to be an array in the JSON string but got `null`

However there seems to be no way to debug this because Watch.next() handles all of reading the response, parsing the JSON and converting to the target type all by itself with no way to print the results in between.

[yue9944882]

@gyorokpeter which client version are you using? is it 20.0.0?

[gyorokpeter]

Yes, 20.0.0. In the meantime I found that normal modify/add/delete events are being picked up correctly, but sometimes this error still pops up.

The code looks quite similar to https://github.com/kubernetes-client/java/blob/master/examples/examples-release-20/src/main/java/io/kubernetes/client/examples/WatchExample.java but it watches pods and sets allowWatchBookmarks to true.

[yue9944882]

i think it's failing because the new client is not able to properly deserialize watch bookmark event from kube-apiserver. thanks for reporting the issue. i will try reproduce that locally