diff --git a/src/ru/pulsar/jenkins/library/edt/EdtCliEngineFactory.groovy b/src/ru/pulsar/jenkins/library/edt/EdtCliEngineFactory.groovy
index b8a3ce7..767638a 100644
--- a/src/ru/pulsar/jenkins/library/edt/EdtCliEngineFactory.groovy
+++ b/src/ru/pulsar/jenkins/library/edt/EdtCliEngineFactory.groovy
@@ -4,7 +4,7 @@ import java.lang.module.ModuleDescriptor
 
 class EdtCliEngineFactory {
 
-    static getEngine(String edtVersion) {
+    static IEdtCliEngine getEngine(String edtVersion) {
 
         def currentVersion = ModuleDescriptor.Version.parse(edtVersion)
         def version2024 = ModuleDescriptor.Version.parse("2024")
diff --git a/src/ru/pulsar/jenkins/library/edt/IEdtCliEngine.java b/src/ru/pulsar/jenkins/library/edt/IEdtCliEngine.groovy
similarity index 65%
rename from src/ru/pulsar/jenkins/library/edt/IEdtCliEngine.java
rename to src/ru/pulsar/jenkins/library/edt/IEdtCliEngine.groovy
index ef498d7..d5ce633 100644
--- a/src/ru/pulsar/jenkins/library/edt/IEdtCliEngine.java
+++ b/src/ru/pulsar/jenkins/library/edt/IEdtCliEngine.groovy
@@ -1,9 +1,9 @@
-package ru.pulsar.jenkins.library.edt;
+package ru.pulsar.jenkins.library.edt
 
-import ru.pulsar.jenkins.library.IStepExecutor;
-import ru.pulsar.jenkins.library.configuration.JobConfiguration;
+import ru.pulsar.jenkins.library.IStepExecutor
+import ru.pulsar.jenkins.library.configuration.JobConfiguration
 
-public interface IEdtCliEngine {
+interface IEdtCliEngine {
     void edtToDesignerTransformConfiguration(IStepExecutor steps, JobConfiguration config);
     void edtToDesignerTransformExtensions(IStepExecutor steps, JobConfiguration config);
     void designerToEdtTransform(IStepExecutor steps, JobConfiguration config);