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image.png

Anyone an idea why IDEA complains about that? The code compiles fine

The involved `cache` is
```
    private val cache: Cache&lt;String, Signal&lt;out AttributeDefinition&gt;&gt; = Caffeine.newBuilder()
            .maximumSize(500)
            .expireAfterWrite(Duration.ofMinutes(5))
            .build()
```
and the call to `CacheMono` looks like
```
    fun findByName(name: String): Mono&lt;AttributeDefinition&gt; = CacheMono
            .lookup(cache.asMap(), name)
            .onCacheMissResume(findByNameRemote(name))
```

It compiles, all tests are running fine …

Looks like a regression of the new type inference.

<@UDUCNGBN3> So only in the IDEA plugin? My kotlin version is 1.3.41 as well … shouldn't they both use the same type inference?

No, since Kotlin 1.3.40 IDEA uses a new type inference. The command line compiler still uses the old one in order to not break everything, until they have found all the deviations between the versions. You can read about it here <https://blog.jetbrains.com/kotlin/2019/06/kotlin-1-3-40-released/>

Because this is a regression, I have created an Issue: <https://youtrack.jetbrains.com/issue/KT-32434>