NullPointerException when there's no @Rule annotation

[nicolasms...@gmail.com]

I'm developing Java custom rules and at one of them I forgot to annotate the class with @Rule. When the tests ran, the only 

message was about a NullPointerException. I thought... It could be anything...

After some debug, I finally found that in the class org.sonar.java.checks.verifier.CheckVerifier, in the method 

private static String ruleKey(AnalyzerMessage issue), inside the else clause, the key is being recovered 

even when the getAnnotation returns null. Then I discovered my mistake.

I want to ask if you could just leave a message that exposes better this error when it occurs.

Thanks! ☺👍

[Michael Gumowski]

Hey Nicolas,

Thanks for the feedback. I've been hit by this one a few time already... and we should have fixed it sooner.

Ticket created: SONARJAVA-2448

Cheers,

Michael

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Michael Gumowski | SonarSource

Software Developer, Language Team
http://sonarsource.com