[BEAM-11385] Samza "[type.argument.type.incompatible] " error.

• Type: Bug
• Status: Resolved
• Priority: P2
• Resolution: Fixed
• Affects Version/s: 2.26.0
• Fix Version/s: 2.26.0
• Component/s: runner-samza
• Assignee: Robert Burke
• Reporter: Robert Burke
• Created: 02/Dec/20 22:05
• Updated: 07/Dec/20 22:59
• Resolved: 07/Dec/20 22:59

Description

Unable to build samza due to the following:

```

Task :runners:samza:compileJava /home/rebo/build_release_candidate/beam/runners/samza/src/main/java/org/apache/beam/runners/samza/runtime/KeyedTimerData.java:48: error: [type.argument.type.incompatible] incompatible type argument for type parameter K of KeyedTimerData. public class KeyedTimerData<K> implements Comparable<KeyedTimerData<K>> { ^ found : K[ extends @UnknownKeyFor Object super @KeyForBottom Void] required: [extends @UnknownKeyFor Object super @UnknownKeyFor null]

```

 

Suppressing "keyfor" for the class resolves the issue.

It's not clear why this isn't happening on master.

Issue Links

• links to: GitHub Pull Request #13467