diff --git a/src/test/java/de/platon42/intellij/jupiter/AddLocalJarToModule.java b/src/test/java/de/platon42/intellij/jupiter/AddLocalJarToModule.kt
similarity index 100%
rename from src/test/java/de/platon42/intellij/jupiter/AddLocalJarToModule.java
rename to src/test/java/de/platon42/intellij/jupiter/AddLocalJarToModule.kt
diff --git a/src/test/java/de/platon42/intellij/jupiter/AddMavenDependencyToModule.java b/src/test/java/de/platon42/intellij/jupiter/AddMavenDependencyToModule.kt
similarity index 100%
rename from src/test/java/de/platon42/intellij/jupiter/AddMavenDependencyToModule.java
rename to src/test/java/de/platon42/intellij/jupiter/AddMavenDependencyToModule.kt
diff --git a/src/test/java/de/platon42/intellij/jupiter/TestDataPath.java b/src/test/java/de/platon42/intellij/jupiter/TestDataPath.kt
similarity index 100%
rename from src/test/java/de/platon42/intellij/jupiter/TestDataPath.java
rename to src/test/java/de/platon42/intellij/jupiter/TestDataPath.kt
diff --git a/src/test/java/de/platon42/intellij/jupiter/TestDataSubPath.java b/src/test/java/de/platon42/intellij/jupiter/TestDataSubPath.kt
similarity index 100%
rename from src/test/java/de/platon42/intellij/jupiter/TestDataSubPath.java
rename to src/test/java/de/platon42/intellij/jupiter/TestDataSubPath.kt
diff --git a/src/test/java/de/platon42/intellij/jupiter/TestJdk.java b/src/test/java/de/platon42/intellij/jupiter/TestJdk.kt
similarity index 100%
rename from src/test/java/de/platon42/intellij/jupiter/TestJdk.java
rename to src/test/java/de/platon42/intellij/jupiter/TestJdk.kt