8344337: SecurityManager cleanup in java.prefs module

Reviewed-by: lancea, bpb, rriggs, iris

src/java.prefs/macosx/classes/java/util/prefs/MacOSXPreferences.java

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2011, 2012, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2011, 2024, 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
@@ -28,8 +28,6 @@ package java.util.prefs;
 import java.util.Objects;
 
 class MacOSXPreferences extends AbstractPreferences {
-    // fixme need security checks?
-
     // CF preferences file name for Java nodes with short names
     // This value is also in MacOSXPreferencesFile.c
     private static final String defaultAppName = "com.apple.java.util.prefs";

src/java.prefs/macosx/classes/java/util/prefs/MacOSXPreferencesFile.java

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2011, 2021, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2011, 2024, 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
@@ -82,15 +82,9 @@ class MacOSXPreferencesFile {
         loadPrefsLib();
     }
 
-    @SuppressWarnings({"removal", "restricted"})
+    @SuppressWarnings("restricted")
     private static void loadPrefsLib() {
-        java.security.AccessController.doPrivileged(
-            new java.security.PrivilegedAction<Void>() {
-                public Void run() {
         System.loadLibrary("prefs");
-                    return null;
-                }
-            });
     }
 
     private static class FlushTask extends TimerTask {

src/java.prefs/share/classes/java/util/prefs/AbstractPreferences.java

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2000, 2022, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2000, 2024, 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
@@ -27,8 +27,6 @@ package java.util.prefs;
 
 import java.util.*;
 import java.io.*;
-import java.security.AccessController;
-import java.security.PrivilegedAction;
 
 /**
  * This class provides a skeletal implementation of the {@link Preferences}
@@ -1058,15 +1056,9 @@ public abstract class AbstractPreferences extends Preferences {
      *         preference tree, {@code false} if it's in the system
      *         preference tree.
      */
-    @SuppressWarnings("removal")
     public boolean isUserNode() {
-        return AccessController.doPrivileged(
-            new PrivilegedAction<Boolean>() {
-                public Boolean run() {
         return root == Preferences.userRoot();
     }
-            }).booleanValue();
-    }
 
     public void addPreferenceChangeListener(PreferenceChangeListener pcl) {
         if (pcl==null)

src/java.prefs/share/classes/java/util/prefs/Preferences.java

@@ -30,20 +30,10 @@ import jdk.internal.util.OperatingSystem;
 import java.io.InputStream;
 import java.io.IOException;
 import java.io.OutputStream;
-import java.security.AccessController;
-import java.security.Permission;
-import java.security.PrivilegedAction;
 import java.util.Iterator;
 import java.util.ServiceLoader;
 import java.util.ServiceConfigurationError;
 
-// These imports needed only as a workaround for a JavaDoc bug
-import java.lang.RuntimePermission;
-import java.lang.Integer;
-import java.lang.Long;
-import java.lang.Float;
-import java.lang.Double;
-
 /**
  * A node in a hierarchical collection of preference data.  This class
  * allows applications to store and retrieve user and system
@@ -227,19 +217,10 @@ public abstract class Preferences {
 
     private static final PreferencesFactory factory = factory();
 
-    @SuppressWarnings("removal")
     private static PreferencesFactory factory() {
         // 1. Try user-specified system property
-        String factoryName = AccessController.doPrivileged(
+        String factoryName = System.getProperty("java.util.prefs.PreferencesFactory");
-            new PrivilegedAction<String>() {
-                public String run() {
-                    return System.getProperty(
-                        "java.util.prefs.PreferencesFactory");}});
         if (factoryName != null) {
-            // FIXME: This code should be run in a doPrivileged and
-            // not use the context classloader, to avoid being
-            // dependent on the invoking thread.
-            // Checking AllPermission also seems wrong.
             try {
                 @SuppressWarnings("deprecation")
                 Object result =Class.forName(factoryName, false,
@@ -250,10 +231,6 @@ public abstract class Preferences {
                 try {
                     // workaround for javaws, plugin,
                     // load factory class using non-system classloader
-                    SecurityManager sm = System.getSecurityManager();
-                    if (sm != null) {
-                        sm.checkPermission(new java.security.AllPermission());
-                    }
                     @SuppressWarnings("deprecation")
                     Object result = Class.forName(factoryName, false,
                                                   Thread.currentThread()
@@ -267,14 +244,6 @@ public abstract class Preferences {
                 }
             }
         }
-
-        return AccessController.doPrivileged(
-            new PrivilegedAction<PreferencesFactory>() {
-                public PreferencesFactory run() {
-                    return factory1();}});
-    }
-
-    private static PreferencesFactory factory1() {
         // 2. Try service provider interface
         Iterator<PreferencesFactory> itr = ServiceLoader
             .load(PreferencesFactory.class, ClassLoader.getSystemClassLoader())
@@ -427,24 +396,12 @@ public abstract class Preferences {
         return "/" + packageName.replace('.', '/');
     }
 
-    /**
-     * This permission object represents the permission required to get
-     * access to the user or system root (which in turn allows for all
-     * other operations).
-     */
-    private static Permission prefsPerm = new RuntimePermission("preferences");
-
     /**
      * Returns the root preference node for the calling user.
      *
      * @return the root preference node for the calling user.
      */
     public static Preferences userRoot() {
-        @SuppressWarnings("removal")
-        SecurityManager security = System.getSecurityManager();
-        if (security != null)
-            security.checkPermission(prefsPerm);
-
         return factory.userRoot();
     }
 
@@ -454,11 +411,6 @@ public abstract class Preferences {
      * @return the root preference node for the system.
      */
     public static Preferences systemRoot() {
-        @SuppressWarnings("removal")
-        SecurityManager security = System.getSecurityManager();
-        if (security != null)
-            security.checkPermission(prefsPerm);
-
         return factory.systemRoot();
     }
 

src/java.prefs/unix/classes/java/util/prefs/FileSystemPreferences.java

@@ -27,9 +27,6 @@ package java.util.prefs;
 
 import java.util.*;
 import java.io.*;
-import java.security.AccessController;
-import java.security.PrivilegedAction;
-import java.security.PrivilegedExceptionAction;
 import java.security.PrivilegedActionException;
 import sun.util.logging.PlatformLogger;
 
@@ -53,13 +50,9 @@ class FileSystemPreferences extends AbstractPreferences {
         loadPrefsLib();
     }
 
-    @SuppressWarnings({"removal", "restricted"})
+    @SuppressWarnings("restricted")
     private static void loadPrefsLib() {
-        PrivilegedAction<Void> load = () -> {
         System.loadLibrary("prefs");
-            return null;
-        };
-        AccessController.doPrivileged(load);
     }
 
     /**
@@ -67,8 +60,7 @@ class FileSystemPreferences extends AbstractPreferences {
      */
     @SuppressWarnings("removal")
     private static final int SYNC_INTERVAL = Math.max(1,
-        AccessController.doPrivileged((PrivilegedAction<Integer>) () ->
+            Integer.getInteger("java.util.prefs.syncInterval", 30));
-             Integer.getInteger("java.util.prefs.syncInterval", 30)));
 
     /**
      * Returns logger for error messages. Backing store exceptions are logged at
@@ -117,10 +109,7 @@ class FileSystemPreferences extends AbstractPreferences {
         return root;
     }
 
-    @SuppressWarnings("removal")
     private static void setupUserRoot() {
-        AccessController.doPrivileged(new PrivilegedAction<Void>() {
-            public Void run() {
         userRootDir =
               new File(System.getProperty("java.util.prefs.userRoot",
                       System.getProperty("user.home")), ".java/.userPrefs");
@@ -134,17 +123,17 @@ class FileSystemPreferences extends AbstractPreferences {
                         " on userRoot directory. ");
                 }
                 getLogger().info("Created user preferences directory.");
-                    }
+            } else {
-                    else
                 getLogger().warning("Couldn't create user preferences" +
                         " directory. User preferences are unusable.");
             }
+        }
         isUserRootWritable = userRootDir.canWrite();
         String USER_NAME = System.getProperty("user.name");
         userLockFile = new File(userRootDir,".user.lock." + USER_NAME);
         userRootModFile = new File (userRootDir,
                                        ".userRootModFile." + USER_NAME);
-                if (!userRootModFile.exists())
+        if (!userRootModFile.exists()) {
             try {
                 // create if does not exist.
                 userRootModFile.createNewFile();
@@ -159,10 +148,8 @@ class FileSystemPreferences extends AbstractPreferences {
             } catch (IOException e) {
                 getLogger().warning(e.toString());
             }
-                userRootModTime = userRootModFile.lastModified();
-                return null;
         }
-        });
+        userRootModTime = userRootModFile.lastModified();
     }
 
 
@@ -185,10 +172,7 @@ class FileSystemPreferences extends AbstractPreferences {
         return root;
     }
 
-    @SuppressWarnings("removal")
     private static void setupSystemRoot() {
-        AccessController.doPrivileged(new PrivilegedAction<Void>() {
-            public Void run() {
         String systemPrefsDirName =
           System.getProperty("java.util.prefs.systemRoot", "/etc/.java");
         systemRootDir =
@@ -219,24 +203,23 @@ class FileSystemPreferences extends AbstractPreferences {
         }
         isSystemRootWritable = systemRootDir.canWrite();
         systemLockFile = new File(systemRootDir, ".system.lock");
-                systemRootModFile =
+        systemRootModFile = new File (systemRootDir, ".systemRootModFile");
-                               new File (systemRootDir,".systemRootModFile");
+        if (!systemRootModFile.exists() && isSystemRootWritable) {
-                if (!systemRootModFile.exists() && isSystemRootWritable)
             try {
                 // create if does not exist.
                 systemRootModFile.createNewFile();
                 int result = chmod(systemRootModFile.getCanonicalPath(),
                         USER_RW_ALL_READ);
-                    if (result !=0)
+                if (result != 0) {
                     getLogger().warning("Chmod failed on " +
                             systemRootModFile.getCanonicalPath() +
                             " Unix error code " + result);
-                } catch (IOException e) { getLogger().warning(e.toString());
+                }
+            } catch (IOException e) {
+                getLogger().warning(e.toString());
+            }
         }
         systemRootModTime = systemRootModFile.lastModified();
-                return null;
-            }
-        });
     }
 
 
@@ -456,7 +439,6 @@ class FileSystemPreferences extends AbstractPreferences {
         addShutdownHook();
     }
 
-    @SuppressWarnings("removal")
     private static void addShutdownHook() {
         // Add periodic timer task to periodically sync cached prefs
         syncTimer.schedule(new TimerTask() {
@@ -466,8 +448,6 @@ class FileSystemPreferences extends AbstractPreferences {
         }, SYNC_INTERVAL*1000, SYNC_INTERVAL*1000);
 
         // Add shutdown hook to flush cached prefs on normal termination
-        AccessController.doPrivileged(new PrivilegedAction<Void>() {
-            public Void run() {
         Runtime.getRuntime().addShutdownHook(
             new Thread(null, null, "Sync Timer Thread", 0, false) {
             public void run() {
@@ -475,9 +455,6 @@ class FileSystemPreferences extends AbstractPreferences {
                 syncWorld();
             }
         });
-                return null;
-            }
-        });
     }
 
     private static void syncWorld() {
@@ -526,19 +503,13 @@ class FileSystemPreferences extends AbstractPreferences {
      * parent node and name.  This constructor, called from childSpi,
      * is used to make every node except for the two //roots.
      */
-    @SuppressWarnings("removal")
     private FileSystemPreferences(FileSystemPreferences parent, String name) {
         super(parent, name);
         isUserNode = parent.isUserNode;
         dir  = new File(parent.dir, dirName(name));
         prefsFile = new File(dir, "prefs.xml");
         tmpFile  = new File(dir, "prefs.tmp");
-        AccessController.doPrivileged(new PrivilegedAction<Void>() {
-            public Void run() {
         newNode = !dir.exists();
-                return null;
-            }
-        });
         if (newNode) {
             // These 2 things guarantee node will get written at next flush/sync
             prefsCache = new TreeMap<>();
@@ -596,12 +567,7 @@ class FileSystemPreferences extends AbstractPreferences {
      * fails, a BackingStoreException is thrown and both prefsCache and
      * lastSyncTime are unaffected by the call.
      */
-    @SuppressWarnings("removal")
     private void loadCache() throws BackingStoreException {
-        try {
-            AccessController.doPrivileged(
-                new PrivilegedExceptionAction<Void>() {
-                public Void run() throws BackingStoreException {
         Map<String, String> m = new TreeMap<>();
         long newLastSyncTime = 0;
         try {
@@ -627,12 +593,6 @@ class FileSystemPreferences extends AbstractPreferences {
         // Attempt succeeded; update state
         prefsCache = m;
         lastSyncTime = newLastSyncTime;
-                    return null;
-                }
-            });
-        } catch (PrivilegedActionException e) {
-            throw (BackingStoreException) e.getException();
-        }
     }
 
     /**
@@ -644,12 +604,7 @@ class FileSystemPreferences extends AbstractPreferences {
      * and lastSyncTime will be unaffected by this call.  This call will
      * NEVER leave prefsFile in a corrupt state.
      */
-    @SuppressWarnings("removal")
     private void writeBackCache() throws BackingStoreException {
-        try {
-            AccessController.doPrivileged(
-                new PrivilegedExceptionAction<Void>() {
-                public Void run() throws BackingStoreException {
         try {
             if (!dir.exists() && !dir.mkdirs())
                 throw new BackingStoreException(dir +
@@ -660,17 +615,11 @@ class FileSystemPreferences extends AbstractPreferences {
             if (!tmpFile.renameTo(prefsFile))
                 throw new BackingStoreException("Can't rename " +
                 tmpFile + " to " + prefsFile);
+        } catch(BackingStoreException e) {
+            throw e;
         } catch(Exception e) {
-                        if (e instanceof BackingStoreException)
-                            throw (BackingStoreException)e;
             throw new BackingStoreException(e);
         }
-                    return null;
-                }
-            });
-        } catch (PrivilegedActionException e) {
-            throw (BackingStoreException) e.getException();
-        }
     }
 
     protected String[] keysSpi() {
@@ -678,11 +627,7 @@ class FileSystemPreferences extends AbstractPreferences {
         return prefsCache.keySet().toArray(new String[prefsCache.size()]);
     }
 
-    @SuppressWarnings("removal")
     protected String[] childrenNamesSpi() {
-        return AccessController.doPrivileged(
-            new PrivilegedAction<String[]>() {
-                public String[] run() {
         List<String> result = new ArrayList<>();
         File[] dirContents = dir.listFiles();
         if (dirContents != null) {
@@ -692,8 +637,6 @@ class FileSystemPreferences extends AbstractPreferences {
         }
         return result.toArray(EMPTY_STRING_ARRAY);
     }
-            });
-    }
 
     private static final String[] EMPTY_STRING_ARRAY = new String[0];
 
@@ -717,19 +660,14 @@ class FileSystemPreferences extends AbstractPreferences {
     /**
      * Called with file lock held (in addition to node locks).
      */
-    @SuppressWarnings("removal")
     protected void removeNodeSpi() throws BackingStoreException {
-        try {
-            AccessController.doPrivileged(
-                new PrivilegedExceptionAction<Void>() {
-                public Void run() throws BackingStoreException {
         if (changeLog.contains(nodeCreate)) {
             changeLog.remove(nodeCreate);
             nodeCreate = null;
-                        return null;
+            return;
         }
         if (!dir.exists())
-                        return null;
+            return;
         prefsFile.delete();
         tmpFile.delete();
         // dir should be empty now.  If it's not, empty it
@@ -744,15 +682,8 @@ class FileSystemPreferences extends AbstractPreferences {
         if (!dir.delete())
             throw new BackingStoreException("Couldn't delete dir: "
                                                              + dir);
-                    return null;
-                }
-            });
-        } catch (PrivilegedActionException e) {
-            throw (BackingStoreException) e.getException();
-        }
     }
 
-    @SuppressWarnings("removal")
     public synchronized void sync() throws BackingStoreException {
         boolean userNode = isUserNode();
         boolean shared;
@@ -765,12 +696,9 @@ class FileSystemPreferences extends AbstractPreferences {
             shared = !isSystemRootWritable;
         }
         synchronized (isUserNode()? userLockFile:systemLockFile) {
-           if (!lockFile(shared))
+           if (!lockFile(shared)) {
                throw (new BackingStoreException("Couldn't get file lock."));
-           final Long newModTime =
+           }
-                AccessController.doPrivileged(
-                    new PrivilegedAction<Long>() {
-               public Long run() {
            long nmt;
            if (isUserNode()) {
                nmt = userRootModFile.lastModified();
@@ -779,44 +707,23 @@ class FileSystemPreferences extends AbstractPreferences {
                nmt = systemRootModFile.lastModified();
                isSystemRootModified = systemRootModTime == nmt;
            }
-                   return nmt;
+           final long newModTime = nmt;
-               }
-           });
            try {
                super.sync();
-               AccessController.doPrivileged(new PrivilegedAction<Void>() {
-                   public Void run() {
                if (isUserNode()) {
-                       userRootModTime = newModTime.longValue() + 1000;
+                   userRootModTime = newModTime + 1000;
                    userRootModFile.setLastModified(userRootModTime);
                } else {
-                       systemRootModTime = newModTime.longValue() + 1000;
+                   systemRootModTime = newModTime + 1000;
                    systemRootModFile.setLastModified(systemRootModTime);
                }
-                   return null;
-                   }
-               });
            } finally {
                 unlockFile();
            }
         }
     }
 
-    @SuppressWarnings("removal")
     protected void syncSpi() throws BackingStoreException {
-        try {
-            AccessController.doPrivileged(
-                new PrivilegedExceptionAction<Void>() {
-                public Void run() throws BackingStoreException {
-                    syncSpiPrivileged();
-                    return null;
-                }
-            });
-        } catch (PrivilegedActionException e) {
-            throw (BackingStoreException) e.getException();
-        }
-    }
-    private void syncSpiPrivileged() throws BackingStoreException {
         if (isRemoved())
             throw new IllegalStateException("Node has been removed");
         if (prefsCache == null)

src/java.prefs/windows/classes/java/util/prefs/WindowsPreferences.java

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2000, 2022, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2000, 2024, 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
@@ -27,8 +27,6 @@ package java.util.prefs;
 
 import java.util.StringTokenizer;
 import java.io.ByteArrayOutputStream;
-import java.security.AccessController;
-import java.security.PrivilegedAction;
 
 import sun.util.logging.PlatformLogger;
 
@@ -50,13 +48,9 @@ class WindowsPreferences extends AbstractPreferences {
         loadPrefsLib();
     }
 
-    @SuppressWarnings({"removal", "restricted"})
+    @SuppressWarnings("restricted")
     private static void loadPrefsLib() {
-        PrivilegedAction<Void> load = () -> {
         System.loadLibrary("prefs");
-            return null;
-        };
-        AccessController.doPrivileged(load);
     }
 
     /**