From 09435ad0e305b6630146dae426c88952ec5e532d Mon Sep 17 00:00:00 2001
From: Natalia Ukhorskaya <natalia.ukhorskaya@jetbrains.com>
Date: Wed, 25 Feb 2015 17:55:47 +0300
Subject: [PATCH] Gradle: fix warning about annotations path entry points to a
 non-existent location #KT-6865 Fixed

---
 .../main/kotlin/org/jetbrains/kotlin/gradle/tasks/Tasks.kt  | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/libraries/tools/kotlin-gradle-plugin-core/src/main/kotlin/org/jetbrains/kotlin/gradle/tasks/Tasks.kt b/libraries/tools/kotlin-gradle-plugin-core/src/main/kotlin/org/jetbrains/kotlin/gradle/tasks/Tasks.kt
index 3806f5bb81b..89cd145bbde 100644
--- a/libraries/tools/kotlin-gradle-plugin-core/src/main/kotlin/org/jetbrains/kotlin/gradle/tasks/Tasks.kt
+++ b/libraries/tools/kotlin-gradle-plugin-core/src/main/kotlin/org/jetbrains/kotlin/gradle/tasks/Tasks.kt
@@ -120,9 +120,11 @@ public open class KotlinCompile() : AbstractKotlinCompile<K2JVMCompilerArguments
         }
 
         val embeddedAnnotations = getAnnotations(getProject(), getLogger())
-        val userAnnotations = (kotlinOptions.annotations ?: "").split(File.pathSeparatorChar).toList()
+        val userAnnotations = kotlinOptions.annotations?.split(File.pathSeparatorChar)?.toList() ?: emptyList()
         val allAnnotations = if (kotlinOptions.noJdkAnnotations) userAnnotations else userAnnotations.plus(embeddedAnnotations.map { it.getPath() })
-        args.annotations = allAnnotations.makeString(File.pathSeparator)
+        if (allAnnotations.isNotEmpty()) {
+            args.annotations = allAnnotations.join(File.pathSeparator)
+        }
 
         args.noStdlib = true
         args.noJdkAnnotations = true