fix: Fix handling of null responses in rest transport #1668
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Null response should not ever happen, but apparently it is possible in cases when errors occur somewhere on network/authentication level
vam-google
changed the title
| statusCode, | ||
| "Exception during a client call closure", | ||
| new NullPointerException( | ||
| "Both response message and response exception were null"))); |
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I think this message should be "Either response message or response exception is null"?
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It should mean that both of them are null (i.e. and not or). One of them being null is Ok. Either one being null has been handled before. Specifically !future.isDone() means that there was no response message (null), trailers.getException() == null means that there was no excepiton either. I did not even think it was poissible combination, but apparently it is possible for a super-broken responses from server.
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Got it, so both check trailers == null and trailers.getException() == null are checking if the response exception exist or not. Yeah I found similar things when I was implementing the Error Details feature, where I checked both trailer and trailer error.
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🤖 I have created a release *beep* *boop* --- ## [2.17.0](v2.16.0...v2.17.0) (2022-05-10) ### Features * next release from main branch is 2.17.0 ([#1659](#1659)) ([5a31361](5a31361)) ### Bug Fixes * Fix handling of null responses in rest transport ([#1668](#1668)) ([8def947](8def947)) * use graal-sdk 21.3.2 ([#1670](#1670)) ([92c2697](92c2697)) --- This PR was generated with [Release Please](https://github.com/googleapis/release-please). See [documentation](https://github.com/googleapis/release-please#release-please).
🤖 I have created a release *beep* *boop* --- ## [2.17.0](googleapis/gax-java@v2.16.0...v2.17.0) (2022-05-10) ### Features * next release from main branch is 2.17.0 ([#1659](googleapis/gax-java#1659)) ([475b57b](googleapis/gax-java@475b57b)) ### Bug Fixes * Fix handling of null responses in rest transport ([#1668](googleapis/gax-java#1668)) ([49c6d70](googleapis/gax-java@49c6d70)) * use graal-sdk 21.3.2 ([#1670](googleapis/gax-java#1670)) ([ac55789](googleapis/gax-java@ac55789)) --- This PR was generated with [Release Please](https://github.com/googleapis/release-please). See [documentation](https://github.com/googleapis/release-please#release-please).
Null response should not ever happen, but apparently it is possible in cases when errors occur somewhere on network/authentication level