diff --git a/jps-plugin/test/org/jetbrains/kotlin/jps/build/KotlinJpsBuildTest.kt b/jps-plugin/test/org/jetbrains/kotlin/jps/build/KotlinJpsBuildTest.kt
index 5c807b2c89c..aa9d2abb009 100644
--- a/jps-plugin/test/org/jetbrains/kotlin/jps/build/KotlinJpsBuildTest.kt
+++ b/jps-plugin/test/org/jetbrains/kotlin/jps/build/KotlinJpsBuildTest.kt
@@ -757,18 +757,19 @@ public class KotlinJpsBuildTest : AbstractKotlinJpsBuildTestCase() {
         DELETE
     }
 
-    protected fun touch(path: String): Action = Action(Operation.CHANGE, path)
+    private fun touch(path: String): Action = Action(Operation.CHANGE, path)
 
-    protected fun del(path: String): Action = Action(Operation.DELETE, path)
+    private fun del(path: String): Action = Action(Operation.DELETE, path)
 
-    protected fun change(filePath: String): Unit = JpsBuildTestCase.change(filePath)
+    // TODO inline after KT-3974 will be fixed
+    private fun touch(file: File): Unit = JpsBuildTestCase.change(file.absolutePath)
 
-    protected inner class Action constructor(private val operation: Operation, private val path: String) {
+    private inner class Action constructor(private val operation: Operation, private val path: String) {
         fun apply() {
             val file = File(workDir, path)
             when (operation) {
                 Operation.CHANGE ->
-                    change(file.getAbsolutePath())
+                    touch(file)
                 Operation.DELETE ->
                     assertTrue(file.delete(), "Can not delete file \"" + file.getAbsolutePath() + "\"")
                 else ->