1 /*
   2  * Copyright (c) 2005, 2009, Oracle and/or its affiliates. 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.  Oracle designates this
   8  * particular file as subject to the "Classpath" exception as provided
   9  * by Oracle 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  22  * or visit www.oracle.com if you need additional information or have any
  23  * questions.
  24  */
  25 
  26 package javax.lang.model.type;
  27 
  28 import java.lang.annotation.Annotation;
  29 import java.util.ArrayList;
  30 import java.util.List;
  31 import java.util.Collections;
  32 import java.io.ObjectInputStream;
  33 import java.io.IOException;
  34 import javax.lang.model.element.Element;
  35 
  36 
  37 /**
  38  * Thrown when an application attempts to access a sequence of {@link
  39  * Class} objects each corresponding to a {@link TypeMirror}.
  40  *
  41  * @author Joseph D. Darcy
  42  * @author Scott Seligman
  43  * @author Peter von der Ahé
  44  * @see MirroredTypeException
  45  * @see Element#getAnnotation(Class)
  46  * @since 1.6
  47  */
  48 public class MirroredTypesException extends RuntimeException {
  49 
  50     private static final long serialVersionUID = 269;
  51 
  52     transient List<? extends TypeMirror> types; // cannot be serialized
  53 
  54     /*
  55      * Trusted constructor to be called by MirroredTypeException.
  56      */
  57     MirroredTypesException(String message, TypeMirror type) {
  58         super(message);
  59         List<TypeMirror> tmp = (new ArrayList<TypeMirror>());
  60         tmp.add(type);
  61         types = Collections.unmodifiableList(tmp);
  62     }
  63 
  64     /**
  65      * Constructs a new MirroredTypesException for the specified types.
  66      *
  67      * @param types  the types being accessed
  68      */
  69     public MirroredTypesException(List<? extends TypeMirror> types) {
  70         super("Attempt to access Class objects for TypeMirrors " +
  71               (types = // defensive copy
  72                new ArrayList<TypeMirror>(types)).toString() );
  73         this.types = Collections.unmodifiableList(types);
  74     }
  75 
  76     /**
  77      * Returns the type mirrors corresponding to the types being accessed.
  78      * The type mirrors may be unavailable if this exception has been
  79      * serialized and then read back in.
  80      *
  81      * @return the type mirrors in construction order, or {@code null} if unavailable
  82      */
  83     public List<? extends TypeMirror> getTypeMirrors() {
  84         return types;
  85     }
  86 
  87     /**
  88      * Explicitly set all transient fields.
  89      */
  90     private void readObject(ObjectInputStream s)
  91         throws IOException, ClassNotFoundException {
  92         s.defaultReadObject();
  93         types = null;
  94     }
  95 }