From 74893feb9fa24b56b13d5d55f292897a57cb771b Mon Sep 17 00:00:00 2001
From: Alexey Kudravtsev <cdr@intellij.com>
Date: Fri, 17 Mar 2017 18:42:40 +0300
Subject: [PATCH] IDEA-167037 The assertion "File accessed outside allowed
 root" is triggered by files symlinked from the the JDK installation folder

---
 .../openapi/vfs/newvfs/impl/VfsRootAccess.java  | 17 +++++------------
 1 file changed, 5 insertions(+), 12 deletions(-)

diff --git a/platform/platform-impl/src/com/intellij/openapi/vfs/newvfs/impl/VfsRootAccess.java b/platform/platform-impl/src/com/intellij/openapi/vfs/newvfs/impl/VfsRootAccess.java
index 264201570bce..c36ff7784bfd 100644
--- a/platform/platform-impl/src/com/intellij/openapi/vfs/newvfs/impl/VfsRootAccess.java
+++ b/platform/platform-impl/src/com/intellij/openapi/vfs/newvfs/impl/VfsRootAccess.java
@@ -73,12 +73,7 @@ public class VfsRootAccess {
         return;
       }
 
-      Set<String> allowed = ApplicationManager.getApplication().runReadAction(new Computable<Set<String>>() {
-        @Override
-        public Set<String> compute() {
-          return allowedRoots();
-        }
-      });
+      Set<String> allowed = ApplicationManager.getApplication().runReadAction((Computable<Set<String>>)VfsRootAccess::allowedRoots);
       boolean isUnder = allowed == null || allowed.isEmpty();
 
       if (!isUnder) {
@@ -141,6 +136,9 @@ public class VfsRootAccess {
     allowed.add(FileUtil.toSystemIndependentName(System.getProperty("java.io.tmpdir")));
     allowed.add(FileUtil.toSystemIndependentName(SystemProperties.getUserHome()));
 
+    allowed.add("/etc"); // After recent update of Oracle JDK 1.8 under Ubuntu Certain files in the JDK installation are symlinked to /etc
+    // see IDEA-167037 The assertion "File accessed outside allowed root" is triggered by files symlinked from the the JDK installation folder
+
     for (final Project project : openProjects) {
       if (!project.isInitialized()) {
         return null; // all is allowed
@@ -178,12 +176,7 @@ public class VfsRootAccess {
   public static void allowRootAccess(@NotNull Disposable disposable, @NotNull final String... roots) {
     if (roots.length == 0) return;
     allowRootAccess(roots);
-    Disposer.register(disposable, new Disposable() {
-      @Override
-      public void dispose() {
-        disallowRootAccess(roots);
-      }
-    });
+    Disposer.register(disposable, () -> disallowRootAccess(roots));
   }
 
   @TestOnly