diff --git a/platform/platform-api/src/org/jetbrains/concurrency/AsyncPromise.java b/platform/platform-api/src/org/jetbrains/concurrency/AsyncPromise.kt
similarity index 100%
rename from platform/platform-api/src/org/jetbrains/concurrency/AsyncPromise.java
rename to platform/platform-api/src/org/jetbrains/concurrency/AsyncPromise.kt
diff --git a/platform/script-debugger/debugger-ui/src/org/jetbrains/debugger/RejectErrorReporter.java b/platform/script-debugger/debugger-ui/src/org/jetbrains/debugger/RejectErrorReporter.kt
similarity index 100%
rename from platform/script-debugger/debugger-ui/src/org/jetbrains/debugger/RejectErrorReporter.java
rename to platform/script-debugger/debugger-ui/src/org/jetbrains/debugger/RejectErrorReporter.kt