SerializableException


1   /*
2    * Copyright 2006 Google Inc.
3    * 
4    * Licensed under the Apache License, Version 2.0 (the "License"); you may not
5    * use this file except in compliance with the License. You may obtain a copy of
6    * the License at
7    * 
8    * http://www.apache.org/licenses/LICENSE-2.0
9    * 
10   * Unless required by applicable law or agreed to in writing, software
11   * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
12   * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
13   * License for the specific language governing permissions and limitations under
14   * the License.
15   */
16  package com.google.gwt.user.client.rpc;
17  
18  /**
19   * Superclass for exceptions thrown from RPC methods (those appearing in
20   * interfaces derived from {@link RemoteService}).
21   */
22  public class SerializableException extends Exception   implements IsSerializable {
23  
24    private String   msg;
25  
26    /**
27     * The default constructor. This constructor is used implicitly during
28     * serialization or when constructing subclasses.
29     */
30    public SerializableException() {
31    }
32  
33    /**
34     * Constructs a serializable exception with the specified message. This
35     * constructor is most often called by subclass constructors.
36     */
37    public SerializableException(String   msg) {
38      this.msg = msg;
39    }
40  
41    /**
42     * Exception chaining is not currently supported for serialized exceptions.
43     * 
44     * @return always <code>null</code>
45     */
46    public Throwable   getCause() {
47      return null;
48    }
49  
50    public String   getMessage() {
51      return msg;
52    }
53  
54    /**
55     * No effect; exception chaining is not currently supported for serialized
56     * exceptions.
57     */
58    public Throwable   initCause(Throwable   cause) {
59      // nothing
60      return null;
61    }
62  }
63
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