Removed IllegalAccessException and UnsupportedOperationException.

utils/archive/entry.dart

 // Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 #library("entry");
 
 #import("dart:io");
 #import("archive.dart", prefix: "archive");
 #import("entry_request.dart");
 #import("read_request.dart", prefix: 'read');
@@ skipping 242 matching lines @@
    * The contents of an entry must be consumed before the next entry is read
    * from the parent [ArchiveInputStream]. This means that [openInputStream]
    * must be called from the [ArchiveInputStream.onEntry] callback, or before
    * the future returned by that callback completes. Once the next entry has
    * been read, calling [openInputStream] will throw an [ArchiveException].
    *
    * Only one input stream may be opened per entry.
    */
   InputStream openInputStream() {
     if (_archiveId == null) {
-      throw new UnsupportedOperationException("Cannot open input stream for "
+      throw new UnsupportedError("Cannot open input stream for "
           "archive entry $pathname.");
     } else if (_input != null) {
-      throw new UnsupportedOperationException("An input stream has already been"
+      throw new UnsupportedError("An input stream has already been"
           "opened for archive entry $pathname.");
     }
 
     var inputCompleter = new Completer();
     inputComplete = inputCompleter.future;
 
     _input = new ListInputStream();
     // TODO(nweiz): Report errors once issue 3657 is fixed
     var future = _consumeInput().chain((_) {
       if (!_input.closed) _input.markEndOfStream();
@@ skipping 51 matching lines @@
 class CompleteArchiveEntry extends ArchiveEntry {
   /** The contents of the entry as bytes. */
   final List<int> contentBytes;
 
   /** The contents of the entry as a string. */
   String get contents => new String.fromCharCodes(contentBytes);
 
   CompleteArchiveEntry._(List properties, this.contentBytes)
     : super.internal(properties, null);
 }