J. Duke | 319a3b9 | 2007-12-01 00:00:00 +0000 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright 1997-2006 Sun Microsystems, Inc. All Rights Reserved. |
| 3 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| 4 | * |
| 5 | * This code is free software; you can redistribute it and/or modify it |
| 6 | * under the terms of the GNU General Public License version 2 only, as |
| 7 | * published by the Free Software Foundation. Sun designates this |
| 8 | * particular file as subject to the "Classpath" exception as provided |
| 9 | * by Sun in the LICENSE file that accompanied this code. |
| 10 | * |
| 11 | * This code is distributed in the hope that it will be useful, but WITHOUT |
| 12 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| 13 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| 14 | * version 2 for more details (a copy is included in the LICENSE file that |
| 15 | * accompanied this code). |
| 16 | * |
| 17 | * You should have received a copy of the GNU General Public License version |
| 18 | * 2 along with this work; if not, write to the Free Software Foundation, |
| 19 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| 20 | * |
| 21 | * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, |
| 22 | * CA 95054 USA or visit www.sun.com if you need additional information or |
| 23 | * have any questions. |
| 24 | */ |
| 25 | |
| 26 | package java.security; |
| 27 | |
| 28 | import java.util.Enumeration; |
| 29 | import java.util.Hashtable; |
| 30 | import java.util.NoSuchElementException; |
| 31 | import java.util.Map; |
| 32 | import java.util.HashMap; |
| 33 | import java.util.List; |
| 34 | import java.util.ArrayList; |
| 35 | import java.util.Iterator; |
| 36 | import java.util.Collections; |
| 37 | import java.io.Serializable; |
| 38 | import java.io.ObjectStreamField; |
| 39 | import java.io.ObjectOutputStream; |
| 40 | import java.io.ObjectInputStream; |
| 41 | import java.io.IOException; |
| 42 | |
| 43 | |
| 44 | /** |
| 45 | * This class represents a heterogeneous collection of Permissions. That is, |
| 46 | * it contains different types of Permission objects, organized into |
| 47 | * PermissionCollections. For example, if any |
| 48 | * <code>java.io.FilePermission</code> objects are added to an instance of |
| 49 | * this class, they are all stored in a single |
| 50 | * PermissionCollection. It is the PermissionCollection returned by a call to |
| 51 | * the <code>newPermissionCollection</code> method in the FilePermission class. |
| 52 | * Similarly, any <code>java.lang.RuntimePermission</code> objects are |
| 53 | * stored in the PermissionCollection returned by a call to the |
| 54 | * <code>newPermissionCollection</code> method in the |
| 55 | * RuntimePermission class. Thus, this class represents a collection of |
| 56 | * PermissionCollections. |
| 57 | * |
| 58 | * <p>When the <code>add</code> method is called to add a Permission, the |
| 59 | * Permission is stored in the appropriate PermissionCollection. If no such |
| 60 | * collection exists yet, the Permission object's class is determined and the |
| 61 | * <code>newPermissionCollection</code> method is called on that class to create |
| 62 | * the PermissionCollection and add it to the Permissions object. If |
| 63 | * <code>newPermissionCollection</code> returns null, then a default |
| 64 | * PermissionCollection that uses a hashtable will be created and used. Each |
| 65 | * hashtable entry stores a Permission object as both the key and the value. |
| 66 | * |
| 67 | * <p> Enumerations returned via the <code>elements</code> method are |
| 68 | * not <em>fail-fast</em>. Modifications to a collection should not be |
| 69 | * performed while enumerating over that collection. |
| 70 | * |
| 71 | * @see Permission |
| 72 | * @see PermissionCollection |
| 73 | * @see AllPermission |
| 74 | * |
| 75 | * |
| 76 | * @author Marianne Mueller |
| 77 | * @author Roland Schemers |
| 78 | * |
| 79 | * @serial exclude |
| 80 | */ |
| 81 | |
| 82 | public final class Permissions extends PermissionCollection |
| 83 | implements Serializable |
| 84 | { |
| 85 | /** |
| 86 | * Key is permissions Class, value is PermissionCollection for that class. |
| 87 | * Not serialized; see serialization section at end of class. |
| 88 | */ |
| 89 | private transient Map<Class<?>, PermissionCollection> permsMap; |
| 90 | |
| 91 | // optimization. keep track of whether unresolved permissions need to be |
| 92 | // checked |
| 93 | private transient boolean hasUnresolved = false; |
| 94 | |
| 95 | // optimization. keep track of the AllPermission collection |
| 96 | // - package private for ProtectionDomain optimization |
| 97 | PermissionCollection allPermission; |
| 98 | |
| 99 | /** |
| 100 | * Creates a new Permissions object containing no PermissionCollections. |
| 101 | */ |
| 102 | public Permissions() { |
| 103 | permsMap = new HashMap<Class<?>, PermissionCollection>(11); |
| 104 | allPermission = null; |
| 105 | } |
| 106 | |
| 107 | /** |
| 108 | * Adds a permission object to the PermissionCollection for the class the |
| 109 | * permission belongs to. For example, if <i>permission</i> is a |
| 110 | * FilePermission, it is added to the FilePermissionCollection stored |
| 111 | * in this Permissions object. |
| 112 | * |
| 113 | * This method creates |
| 114 | * a new PermissionCollection object (and adds the permission to it) |
| 115 | * if an appropriate collection does not yet exist. <p> |
| 116 | * |
| 117 | * @param permission the Permission object to add. |
| 118 | * |
| 119 | * @exception SecurityException if this Permissions object is |
| 120 | * marked as readonly. |
| 121 | * |
| 122 | * @see PermissionCollection#isReadOnly() |
| 123 | */ |
| 124 | |
| 125 | public void add(Permission permission) { |
| 126 | if (isReadOnly()) |
| 127 | throw new SecurityException( |
| 128 | "attempt to add a Permission to a readonly Permissions object"); |
| 129 | |
| 130 | PermissionCollection pc; |
| 131 | |
| 132 | synchronized (this) { |
| 133 | pc = getPermissionCollection(permission, true); |
| 134 | pc.add(permission); |
| 135 | } |
| 136 | |
| 137 | // No sync; staleness -> optimizations delayed, which is OK |
| 138 | if (permission instanceof AllPermission) { |
| 139 | allPermission = pc; |
| 140 | } |
| 141 | if (permission instanceof UnresolvedPermission) { |
| 142 | hasUnresolved = true; |
| 143 | } |
| 144 | } |
| 145 | |
| 146 | /** |
| 147 | * Checks to see if this object's PermissionCollection for permissions of |
| 148 | * the specified permission's class implies the permissions |
| 149 | * expressed in the <i>permission</i> object. Returns true if the |
| 150 | * combination of permissions in the appropriate PermissionCollection |
| 151 | * (e.g., a FilePermissionCollection for a FilePermission) together |
| 152 | * imply the specified permission. |
| 153 | * |
| 154 | * <p>For example, suppose there is a FilePermissionCollection in this |
| 155 | * Permissions object, and it contains one FilePermission that specifies |
| 156 | * "read" access for all files in all subdirectories of the "/tmp" |
| 157 | * directory, and another FilePermission that specifies "write" access |
| 158 | * for all files in the "/tmp/scratch/foo" directory. |
| 159 | * Then if the <code>implies</code> method |
| 160 | * is called with a permission specifying both "read" and "write" access |
| 161 | * to files in the "/tmp/scratch/foo" directory, <code>true</code> is |
| 162 | * returned. |
| 163 | * |
| 164 | * <p>Additionally, if this PermissionCollection contains the |
| 165 | * AllPermission, this method will always return true. |
| 166 | * <p> |
| 167 | * @param permission the Permission object to check. |
| 168 | * |
| 169 | * @return true if "permission" is implied by the permissions in the |
| 170 | * PermissionCollection it |
| 171 | * belongs to, false if not. |
| 172 | */ |
| 173 | |
| 174 | public boolean implies(Permission permission) { |
| 175 | // No sync; staleness -> skip optimization, which is OK |
| 176 | if (allPermission != null) { |
| 177 | return true; // AllPermission has already been added |
| 178 | } else { |
| 179 | synchronized (this) { |
| 180 | PermissionCollection pc = getPermissionCollection(permission, |
| 181 | false); |
| 182 | if (pc != null) { |
| 183 | return pc.implies(permission); |
| 184 | } else { |
| 185 | // none found |
| 186 | return false; |
| 187 | } |
| 188 | } |
| 189 | } |
| 190 | } |
| 191 | |
| 192 | /** |
| 193 | * Returns an enumeration of all the Permission objects in all the |
| 194 | * PermissionCollections in this Permissions object. |
| 195 | * |
| 196 | * @return an enumeration of all the Permissions. |
| 197 | */ |
| 198 | |
| 199 | public Enumeration<Permission> elements() { |
| 200 | // go through each Permissions in the hash table |
| 201 | // and call their elements() function. |
| 202 | |
| 203 | synchronized (this) { |
| 204 | return new PermissionsEnumerator(permsMap.values().iterator()); |
| 205 | } |
| 206 | } |
| 207 | |
| 208 | /** |
| 209 | * Gets the PermissionCollection in this Permissions object for |
| 210 | * permissions whose type is the same as that of <i>p</i>. |
| 211 | * For example, if <i>p</i> is a FilePermission, |
| 212 | * the FilePermissionCollection |
| 213 | * stored in this Permissions object will be returned. |
| 214 | * |
| 215 | * If createEmpty is true, |
| 216 | * this method creates a new PermissionCollection object for the specified |
| 217 | * type of permission objects if one does not yet exist. |
| 218 | * To do so, it first calls the <code>newPermissionCollection</code> method |
| 219 | * on <i>p</i>. Subclasses of class Permission |
| 220 | * override that method if they need to store their permissions in a |
| 221 | * particular PermissionCollection object in order to provide the |
| 222 | * correct semantics when the <code>PermissionCollection.implies</code> |
| 223 | * method is called. |
| 224 | * If the call returns a PermissionCollection, that collection is stored |
| 225 | * in this Permissions object. If the call returns null and createEmpty |
| 226 | * is true, then |
| 227 | * this method instantiates and stores a default PermissionCollection |
| 228 | * that uses a hashtable to store its permission objects. |
| 229 | * |
| 230 | * createEmpty is ignored when creating empty PermissionCollection |
| 231 | * for unresolved permissions because of the overhead of determining the |
| 232 | * PermissionCollection to use. |
| 233 | * |
| 234 | * createEmpty should be set to false when this method is invoked from |
| 235 | * implies() because it incurs the additional overhead of creating and |
| 236 | * adding an empty PermissionCollection that will just return false. |
| 237 | * It should be set to true when invoked from add(). |
| 238 | */ |
| 239 | private PermissionCollection getPermissionCollection(Permission p, |
| 240 | boolean createEmpty) { |
| 241 | Class c = p.getClass(); |
| 242 | |
| 243 | PermissionCollection pc = permsMap.get(c); |
| 244 | |
| 245 | if (!hasUnresolved && !createEmpty) { |
| 246 | return pc; |
| 247 | } else if (pc == null) { |
| 248 | |
| 249 | // Check for unresolved permissions |
| 250 | pc = (hasUnresolved ? getUnresolvedPermissions(p) : null); |
| 251 | |
| 252 | // if still null, create a new collection |
| 253 | if (pc == null && createEmpty) { |
| 254 | |
| 255 | pc = p.newPermissionCollection(); |
| 256 | |
| 257 | // still no PermissionCollection? |
| 258 | // We'll give them a PermissionsHash. |
| 259 | if (pc == null) |
| 260 | pc = new PermissionsHash(); |
| 261 | } |
| 262 | |
| 263 | if (pc != null) { |
| 264 | permsMap.put(c, pc); |
| 265 | } |
| 266 | } |
| 267 | return pc; |
| 268 | } |
| 269 | |
| 270 | /** |
| 271 | * Resolves any unresolved permissions of type p. |
| 272 | * |
| 273 | * @param p the type of unresolved permission to resolve |
| 274 | * |
| 275 | * @return PermissionCollection containing the unresolved permissions, |
| 276 | * or null if there were no unresolved permissions of type p. |
| 277 | * |
| 278 | */ |
| 279 | private PermissionCollection getUnresolvedPermissions(Permission p) |
| 280 | { |
| 281 | // Called from within synchronized method so permsMap doesn't need lock |
| 282 | |
| 283 | UnresolvedPermissionCollection uc = |
| 284 | (UnresolvedPermissionCollection) permsMap.get(UnresolvedPermission.class); |
| 285 | |
| 286 | // we have no unresolved permissions if uc is null |
| 287 | if (uc == null) |
| 288 | return null; |
| 289 | |
| 290 | List<UnresolvedPermission> unresolvedPerms = |
| 291 | uc.getUnresolvedPermissions(p); |
| 292 | |
| 293 | // we have no unresolved permissions of this type if unresolvedPerms is null |
| 294 | if (unresolvedPerms == null) |
| 295 | return null; |
| 296 | |
| 297 | java.security.cert.Certificate certs[] = null; |
| 298 | |
| 299 | Object signers[] = p.getClass().getSigners(); |
| 300 | |
| 301 | int n = 0; |
| 302 | if (signers != null) { |
| 303 | for (int j=0; j < signers.length; j++) { |
| 304 | if (signers[j] instanceof java.security.cert.Certificate) { |
| 305 | n++; |
| 306 | } |
| 307 | } |
| 308 | certs = new java.security.cert.Certificate[n]; |
| 309 | n = 0; |
| 310 | for (int j=0; j < signers.length; j++) { |
| 311 | if (signers[j] instanceof java.security.cert.Certificate) { |
| 312 | certs[n++] = (java.security.cert.Certificate)signers[j]; |
| 313 | } |
| 314 | } |
| 315 | } |
| 316 | |
| 317 | PermissionCollection pc = null; |
| 318 | synchronized (unresolvedPerms) { |
| 319 | int len = unresolvedPerms.size(); |
| 320 | for (int i = 0; i < len; i++) { |
| 321 | UnresolvedPermission up = unresolvedPerms.get(i); |
| 322 | Permission perm = up.resolve(p, certs); |
| 323 | if (perm != null) { |
| 324 | if (pc == null) { |
| 325 | pc = p.newPermissionCollection(); |
| 326 | if (pc == null) |
| 327 | pc = new PermissionsHash(); |
| 328 | } |
| 329 | pc.add(perm); |
| 330 | } |
| 331 | } |
| 332 | } |
| 333 | return pc; |
| 334 | } |
| 335 | |
| 336 | private static final long serialVersionUID = 4858622370623524688L; |
| 337 | |
| 338 | // Need to maintain serialization interoperability with earlier releases, |
| 339 | // which had the serializable field: |
| 340 | // private Hashtable perms; |
| 341 | |
| 342 | /** |
| 343 | * @serialField perms java.util.Hashtable |
| 344 | * A table of the Permission classes and PermissionCollections. |
| 345 | * @serialField allPermission java.security.PermissionCollection |
| 346 | */ |
| 347 | private static final ObjectStreamField[] serialPersistentFields = { |
| 348 | new ObjectStreamField("perms", Hashtable.class), |
| 349 | new ObjectStreamField("allPermission", PermissionCollection.class), |
| 350 | }; |
| 351 | |
| 352 | /** |
| 353 | * @serialData Default fields. |
| 354 | */ |
| 355 | /* |
| 356 | * Writes the contents of the permsMap field out as a Hashtable for |
| 357 | * serialization compatibility with earlier releases. allPermission |
| 358 | * unchanged. |
| 359 | */ |
| 360 | private void writeObject(ObjectOutputStream out) throws IOException { |
| 361 | // Don't call out.defaultWriteObject() |
| 362 | |
| 363 | // Copy perms into a Hashtable |
| 364 | Hashtable<Class<?>, PermissionCollection> perms = |
| 365 | new Hashtable<Class<?>, PermissionCollection>(permsMap.size()*2); // no sync; estimate |
| 366 | synchronized (this) { |
| 367 | perms.putAll(permsMap); |
| 368 | } |
| 369 | |
| 370 | // Write out serializable fields |
| 371 | ObjectOutputStream.PutField pfields = out.putFields(); |
| 372 | |
| 373 | pfields.put("allPermission", allPermission); // no sync; staleness OK |
| 374 | pfields.put("perms", perms); |
| 375 | out.writeFields(); |
| 376 | } |
| 377 | |
| 378 | /* |
| 379 | * Reads in a Hashtable of Class/PermissionCollections and saves them in the |
| 380 | * permsMap field. Reads in allPermission. |
| 381 | */ |
| 382 | private void readObject(ObjectInputStream in) throws IOException, |
| 383 | ClassNotFoundException { |
| 384 | // Don't call defaultReadObject() |
| 385 | |
| 386 | // Read in serialized fields |
| 387 | ObjectInputStream.GetField gfields = in.readFields(); |
| 388 | |
| 389 | // Get allPermission |
| 390 | allPermission = (PermissionCollection) gfields.get("allPermission", null); |
| 391 | |
| 392 | // Get permissions |
| 393 | Hashtable<Class<?>, PermissionCollection> perms = |
| 394 | (Hashtable<Class<?>, PermissionCollection>)gfields.get("perms", null); |
| 395 | permsMap = new HashMap<Class<?>, PermissionCollection>(perms.size()*2); |
| 396 | permsMap.putAll(perms); |
| 397 | |
| 398 | // Set hasUnresolved |
| 399 | UnresolvedPermissionCollection uc = |
| 400 | (UnresolvedPermissionCollection) permsMap.get(UnresolvedPermission.class); |
| 401 | hasUnresolved = (uc != null && uc.elements().hasMoreElements()); |
| 402 | } |
| 403 | } |
| 404 | |
| 405 | final class PermissionsEnumerator implements Enumeration<Permission> { |
| 406 | |
| 407 | // all the perms |
| 408 | private Iterator<PermissionCollection> perms; |
| 409 | // the current set |
| 410 | private Enumeration<Permission> permset; |
| 411 | |
| 412 | PermissionsEnumerator(Iterator<PermissionCollection> e) { |
| 413 | perms = e; |
| 414 | permset = getNextEnumWithMore(); |
| 415 | } |
| 416 | |
| 417 | // No need to synchronize; caller should sync on object as required |
| 418 | public boolean hasMoreElements() { |
| 419 | // if we enter with permissionimpl null, we know |
| 420 | // there are no more left. |
| 421 | |
| 422 | if (permset == null) |
| 423 | return false; |
| 424 | |
| 425 | // try to see if there are any left in the current one |
| 426 | |
| 427 | if (permset.hasMoreElements()) |
| 428 | return true; |
| 429 | |
| 430 | // get the next one that has something in it... |
| 431 | permset = getNextEnumWithMore(); |
| 432 | |
| 433 | // if it is null, we are done! |
| 434 | return (permset != null); |
| 435 | } |
| 436 | |
| 437 | // No need to synchronize; caller should sync on object as required |
| 438 | public Permission nextElement() { |
| 439 | |
| 440 | // hasMoreElements will update permset to the next permset |
| 441 | // with something in it... |
| 442 | |
| 443 | if (hasMoreElements()) { |
| 444 | return permset.nextElement(); |
| 445 | } else { |
| 446 | throw new NoSuchElementException("PermissionsEnumerator"); |
| 447 | } |
| 448 | |
| 449 | } |
| 450 | |
| 451 | private Enumeration<Permission> getNextEnumWithMore() { |
| 452 | while (perms.hasNext()) { |
| 453 | PermissionCollection pc = perms.next(); |
| 454 | Enumeration<Permission> next =pc.elements(); |
| 455 | if (next.hasMoreElements()) |
| 456 | return next; |
| 457 | } |
| 458 | return null; |
| 459 | |
| 460 | } |
| 461 | } |
| 462 | |
| 463 | /** |
| 464 | * A PermissionsHash stores a homogeneous set of permissions in a hashtable. |
| 465 | * |
| 466 | * @see Permission |
| 467 | * @see Permissions |
| 468 | * |
| 469 | * |
| 470 | * @author Roland Schemers |
| 471 | * |
| 472 | * @serial include |
| 473 | */ |
| 474 | |
| 475 | final class PermissionsHash extends PermissionCollection |
| 476 | implements Serializable |
| 477 | { |
| 478 | /** |
| 479 | * Key and value are (same) permissions objects. |
| 480 | * Not serialized; see serialization section at end of class. |
| 481 | */ |
| 482 | private transient Map<Permission, Permission> permsMap; |
| 483 | |
| 484 | /** |
| 485 | * Create an empty PermissionsHash object. |
| 486 | */ |
| 487 | |
| 488 | PermissionsHash() { |
| 489 | permsMap = new HashMap<Permission, Permission>(11); |
| 490 | } |
| 491 | |
| 492 | /** |
| 493 | * Adds a permission to the PermissionsHash. |
| 494 | * |
| 495 | * @param permission the Permission object to add. |
| 496 | */ |
| 497 | |
| 498 | public void add(Permission permission) { |
| 499 | synchronized (this) { |
| 500 | permsMap.put(permission, permission); |
| 501 | } |
| 502 | } |
| 503 | |
| 504 | /** |
| 505 | * Check and see if this set of permissions implies the permissions |
| 506 | * expressed in "permission". |
| 507 | * |
| 508 | * @param permission the Permission object to compare |
| 509 | * |
| 510 | * @return true if "permission" is a proper subset of a permission in |
| 511 | * the set, false if not. |
| 512 | */ |
| 513 | |
| 514 | public boolean implies(Permission permission) { |
| 515 | // attempt a fast lookup and implies. If that fails |
| 516 | // then enumerate through all the permissions. |
| 517 | synchronized (this) { |
| 518 | Permission p = permsMap.get(permission); |
| 519 | |
| 520 | // If permission is found, then p.equals(permission) |
| 521 | if (p == null) { |
| 522 | for (Permission p_ : permsMap.values()) { |
| 523 | if (p_.implies(permission)) |
| 524 | return true; |
| 525 | } |
| 526 | return false; |
| 527 | } else { |
| 528 | return true; |
| 529 | } |
| 530 | } |
| 531 | } |
| 532 | |
| 533 | /** |
| 534 | * Returns an enumeration of all the Permission objects in the container. |
| 535 | * |
| 536 | * @return an enumeration of all the Permissions. |
| 537 | */ |
| 538 | |
| 539 | public Enumeration<Permission> elements() { |
| 540 | // Convert Iterator of Map values into an Enumeration |
| 541 | synchronized (this) { |
| 542 | return Collections.enumeration(permsMap.values()); |
| 543 | } |
| 544 | } |
| 545 | |
| 546 | private static final long serialVersionUID = -8491988220802933440L; |
| 547 | // Need to maintain serialization interoperability with earlier releases, |
| 548 | // which had the serializable field: |
| 549 | // private Hashtable perms; |
| 550 | /** |
| 551 | * @serialField perms java.util.Hashtable |
| 552 | * A table of the Permissions (both key and value are same). |
| 553 | */ |
| 554 | private static final ObjectStreamField[] serialPersistentFields = { |
| 555 | new ObjectStreamField("perms", Hashtable.class), |
| 556 | }; |
| 557 | |
| 558 | /** |
| 559 | * @serialData Default fields. |
| 560 | */ |
| 561 | /* |
| 562 | * Writes the contents of the permsMap field out as a Hashtable for |
| 563 | * serialization compatibility with earlier releases. |
| 564 | */ |
| 565 | private void writeObject(ObjectOutputStream out) throws IOException { |
| 566 | // Don't call out.defaultWriteObject() |
| 567 | |
| 568 | // Copy perms into a Hashtable |
| 569 | Hashtable<Permission, Permission> perms = |
| 570 | new Hashtable<Permission, Permission>(permsMap.size()*2); |
| 571 | synchronized (this) { |
| 572 | perms.putAll(permsMap); |
| 573 | } |
| 574 | |
| 575 | // Write out serializable fields |
| 576 | ObjectOutputStream.PutField pfields = out.putFields(); |
| 577 | pfields.put("perms", perms); |
| 578 | out.writeFields(); |
| 579 | } |
| 580 | |
| 581 | /* |
| 582 | * Reads in a Hashtable of Permission/Permission and saves them in the |
| 583 | * permsMap field. |
| 584 | */ |
| 585 | private void readObject(ObjectInputStream in) throws IOException, |
| 586 | ClassNotFoundException { |
| 587 | // Don't call defaultReadObject() |
| 588 | |
| 589 | // Read in serialized fields |
| 590 | ObjectInputStream.GetField gfields = in.readFields(); |
| 591 | |
| 592 | // Get permissions |
| 593 | Hashtable<Permission, Permission> perms = |
| 594 | (Hashtable<Permission, Permission>)gfields.get("perms", null); |
| 595 | permsMap = new HashMap<Permission, Permission>(perms.size()*2); |
| 596 | permsMap.putAll(perms); |
| 597 | } |
| 598 | } |