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update: warning suppression on Any #5216

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update: warning suppression on Any #5216

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12 changes: 10 additions & 2 deletions docs/topics/jvm/java-interop.md
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Expand Up @@ -687,10 +687,18 @@ so to make other members of `java.lang.Object` available, Kotlin uses [extension
### wait()/notify()

Methods `wait()` and `notify()` are not available on references of type `Any`. Their usage is generally discouraged in
favor of `java.util.concurrent`. If you really need to call these methods, you can cast to `java.lang.Object`:
favor of `java.util.concurrent`.

If you have to call these methods, cast to `java.lang.Object` and suppress the warning:

```kotlin
(foo as java.lang.Object).wait()
fun main() {
val any = Any()
synchronized(any) {
@Suppress("PLATFORM_CLASS_MAPPED_TO_KOTLIN")
(any as java.lang.Object).wait()
}
}
```

### getClass()
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