diff --git a/idea/idea-analysis/src/org/jetbrains/kotlin/idea/highlighter/DebugInfoAnnotator.java b/idea/idea-analysis/src/org/jetbrains/kotlin/idea/highlighter/DebugInfoAnnotator.kt
similarity index 100%
rename from idea/idea-analysis/src/org/jetbrains/kotlin/idea/highlighter/DebugInfoAnnotator.java
rename to idea/idea-analysis/src/org/jetbrains/kotlin/idea/highlighter/DebugInfoAnnotator.kt
diff --git a/idea/idea-analysis/src/org/jetbrains/kotlin/idea/highlighter/DuplicateJvmSignatureAnnotator.java b/idea/idea-analysis/src/org/jetbrains/kotlin/idea/highlighter/DuplicateJvmSignatureAnnotator.kt
similarity index 100%
rename from idea/idea-analysis/src/org/jetbrains/kotlin/idea/highlighter/DuplicateJvmSignatureAnnotator.java
rename to idea/idea-analysis/src/org/jetbrains/kotlin/idea/highlighter/DuplicateJvmSignatureAnnotator.kt
diff --git a/idea/src/org/jetbrains/kotlin/idea/actions/internal/CopyAsDiagnosticTestAction.java b/idea/src/org/jetbrains/kotlin/idea/actions/internal/CopyAsDiagnosticTestAction.kt
similarity index 100%
rename from idea/src/org/jetbrains/kotlin/idea/actions/internal/CopyAsDiagnosticTestAction.java
rename to idea/src/org/jetbrains/kotlin/idea/actions/internal/CopyAsDiagnosticTestAction.kt