diff --git a/libraries/tools/kotlin-gradle-plugin/src/main/kotlin/org/jetbrains/kotlin/compilerRunner/KotlinToolRunner.kt b/libraries/tools/kotlin-gradle-plugin/src/main/kotlin/org/jetbrains/kotlin/compilerRunner/KotlinToolRunner.kt
index add34fed3ce..1087d2ebbf9 100644
--- a/libraries/tools/kotlin-gradle-plugin/src/main/kotlin/org/jetbrains/kotlin/compilerRunner/KotlinToolRunner.kt
+++ b/libraries/tools/kotlin-gradle-plugin/src/main/kotlin/org/jetbrains/kotlin/compilerRunner/KotlinToolRunner.kt
@@ -36,7 +36,7 @@ internal abstract class KotlinToolRunner(
     open fun checkClasspath(): Unit = check(classpath.isNotEmpty()) { "Classpath of the tool is empty: $displayName" }
 
     abstract val isolatedClassLoaderCacheKey: Any
-    private fun getIsolatedClassLoader(): ClassLoader = isolatedClassLoadersMap.computeIfAbsent(isolatedClassLoaderCacheKey) {
+    private fun getIsolatedClassLoader(): URLClassLoader = isolatedClassLoadersMap.computeIfAbsent(isolatedClassLoaderCacheKey) {
         val arrayOfURLs = classpath.map { File(it.absolutePath).toURI().toURL() }.toTypedArray()
         URLClassLoader(arrayOfURLs, null).apply {
             setDefaultAssertionStatus(enableAssertions)
@@ -112,18 +112,19 @@ internal abstract class KotlinToolRunner(
 
     private fun runInProcess(args: List<String>) {
         val transformedArgs = transformArgs(args)
+        val isolatedClassLoader = getIsolatedClassLoader()
 
         project.logger.info(
             """|Run in-process tool "$displayName"
                |Entry point method = $mainClass.$daemonEntryPoint
-               |Classpath = ${classpath.map { it.absolutePath }.toPrettyString()}
+               |Classpath = ${isolatedClassLoader.urLs.map { it.file }.toPrettyString()}
                |Arguments = ${args.toPrettyString()}
                |Transformed arguments = ${if (transformedArgs == args) "same as arguments" else transformedArgs.toPrettyString()}
             """.trimMargin()
         )
 
         try {
-            val mainClass = getIsolatedClassLoader().loadClass(mainClass)
+            val mainClass = isolatedClassLoader.loadClass(mainClass)
             val entryPoint = mainClass.methods.single { it.name == daemonEntryPoint }
 
             entryPoint.invoke(null, transformedArgs.toTypedArray())
@@ -138,7 +139,7 @@ internal abstract class KotlinToolRunner(
         private fun Sequence<Pair<String, String>>.escapeQuotesForWindows() =
             if (HostManager.hostIsMingw) map { (key, value) -> key.escapeQuotes() to value.escapeQuotes() } else this
 
-        private val isolatedClassLoadersMap = ConcurrentHashMap<Any, ClassLoader>()
+        private val isolatedClassLoadersMap = ConcurrentHashMap<Any, URLClassLoader>()
 
         private fun Map<String, String>.toPrettyString(): String = buildString {
             append('[')