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kotlinlang

after adding a custom JSR305 `@Nullable` annotation to my Java code and annotating my Java packages with `@NonnullByDefault`, I'm getting inexplicable errors for my Kotlin code in IntelliJ (but not in Gradle build). For example, some equality comparisons (`!=`) now give this error:
```
Error:(522, 58) Kotlin: No method 'equals(Any?): Boolean' available
Error:(522, 58) Kotlin: Unresolved reference: !=
```
Any ideas what's going on here?