8194546: Choosier FileManagers

Reviewed-by: prr, serb, skoivu, rhalade

src/windows/classes/sun/awt/shell/Win32ShellFolder2.java

 /*
- * Copyright (c) 2003, 2012, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2003, 2018, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
@@ -677,7 +677,7 @@ final class Win32ShellFolder2 extends ShellFolder {
         }
 
         try {
-            return invoke(new Callable<File[]>() {
+                File[] files = invoke(new Callable<File[]>() {
                 public File[] call() throws InterruptedException {
                     if (!isDirectory()) {
                         return null;
@@ -731,6 +731,8 @@ final class Win32ShellFolder2 extends ShellFolder {
                         ? new File[0]
                         : list.toArray(new ShellFolder[list.size()]);
                 }
+
+                return Win32ShellFolderManager2.checkFiles(files);
             }, InterruptedException.class);
         } catch (InterruptedException e) {
             return new File[0];

src/windows/classes/sun/awt/shell/Win32ShellFolderManager2.java

 /*
- * Copyright (c) 2003, 2014, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2003, 2018, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
@@ -379,21 +379,30 @@ public class Win32ShellFolderManager2 extends ShellFolderManager {
         return null;
     }
 
-    private File checkFile(File file) {
+    private static File checkFile(File file) {
         SecurityManager sm = System.getSecurityManager();
         return (sm == null || file == null) ? file : checkFile(file, sm);
     }
 
-    private File checkFile(File file, SecurityManager sm) {
+    private static File checkFile(File file, SecurityManager sm) {
         try {
             sm.checkRead(file.getPath());
+
+            if (file instanceof Win32ShellFolder2) {
+                Win32ShellFolder2 f = (Win32ShellFolder2)file;
+                if (f.isLink()) {
+                    Win32ShellFolder2 link = (Win32ShellFolder2)f.getLinkLocation();
+                    if (link != null)
+                        sm.checkRead(link.getPath());
+                }
+            }
             return file;
         } catch (SecurityException se) {
             return null;
         }
     }
 
-    private File[] checkFiles(File[] files) {
+    static File[] checkFiles(File[] files) {
         SecurityManager sm = System.getSecurityManager();
         if (sm == null || files == null || files.length == 0) {
             return files;
@@ -401,7 +410,7 @@ public class Win32ShellFolderManager2 extends ShellFolderManager {
         return checkFiles(Arrays.stream(files), sm);
     }
 
-    private File[] checkFiles(List<File> files) {
+    private static File[] checkFiles(List<File> files) {
         SecurityManager sm = System.getSecurityManager();
         if (sm == null || files.isEmpty()) {
             return files.toArray(new File[files.size()]);
@@ -409,7 +418,7 @@ public class Win32ShellFolderManager2 extends ShellFolderManager {
         return checkFiles(files.stream(), sm);
     }
 
-    private File[] checkFiles(Stream<File> filesStream, SecurityManager sm) {
+    private static File[] checkFiles(Stream<File> filesStream, SecurityManager sm) {
         return filesStream.filter((file) -> checkFile(file, sm) != null)
                 .toArray(File[]::new);
     }