From cde84a79235aca39ebc81358d01d970a4ee5c049 Mon Sep 17 00:00:00 2001
From: Dmitry Jemerov <yole@jetbrains.com>
Date: Thu, 28 Dec 2017 12:15:25 +0100
Subject: [PATCH] Handle I/O exceptions when updating library jars

EA-101940 - FNFE: FileUtil.openOutputStream
---
 .../idea/versions/KotlinJVMRuntimeLibraryUtil.kt      | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

diff --git a/idea/idea-jvm/src/org/jetbrains/kotlin/idea/versions/KotlinJVMRuntimeLibraryUtil.kt b/idea/idea-jvm/src/org/jetbrains/kotlin/idea/versions/KotlinJVMRuntimeLibraryUtil.kt
index 96ae745f5f5..19417e30de8 100644
--- a/idea/idea-jvm/src/org/jetbrains/kotlin/idea/versions/KotlinJVMRuntimeLibraryUtil.kt
+++ b/idea/idea-jvm/src/org/jetbrains/kotlin/idea/versions/KotlinJVMRuntimeLibraryUtil.kt
@@ -33,6 +33,7 @@ import org.jetbrains.kotlin.idea.framework.JavaRuntimeDetectionUtil
 import org.jetbrains.kotlin.idea.util.application.runWriteAction
 import org.jetbrains.kotlin.idea.util.projectStructure.allModules
 import java.io.File
+import java.io.IOException
 
 fun updateLibraries(project: Project, libraries: Collection<Library>) {
     if (project.allModules().any { module -> KotlinPluginUtil.isMavenModule(module) }) {
@@ -92,7 +93,15 @@ private fun updateJar(
     }
 
     val jarFileToReplace = getLocalJar(fileToReplace)!!
-    val newVFile = replaceFile(jarPath, jarFileToReplace)
+    val newVFile = try {
+        replaceFile(jarPath, jarFileToReplace)
+    } catch (e: IOException) {
+        Messages.showErrorDialog(project,
+                                 "Failed to update $jarPath: ${e.message}",
+                                 "Library update failed")
+        return
+    }
+
     if (newVFile != null) {
         val model = library.modifiableModel
         runWriteAction {