// !LANGUAGE: -ProperTypeInferenceConstraintsProcessing // TARGET_BACKEND: JVM // FILE: GoBuildingRunningState.java public abstract class GoBuildingRunningState>> implements RunProfileState { public String getBuildingWorkingDirectory() { return ""; } } // FILE: GoBuildingRunConfiguration.java public abstract class GoBuildingRunConfiguration>> { } // FILE: RunProfileState.java public interface RunProfileState { } // FILE: Test.java import org.jetbrains.annotations.Nullable; public class Test { @Nullable public RunProfileState getState() { return null; } } // FILE: main.kt fun String.asFsdAddress(): String { return "" } fun box(): String { val state = Test().state if (state is GoBuildingRunningState<*>) { state.buildingWorkingDirectory.asFsdAddress() } return "OK" }