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13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
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25 
26 package javax.lang.model.type;
27 
28 import java.util.ArrayList;
29 import java.util.List;
30 import java.util.Collections;
31 import java.io.ObjectInputStream;
32 import java.io.IOException;
33 import javax.lang.model.element.Element;
34 
35 
36 /**
37  * Thrown when an application attempts to access a sequence of {@link
38  * Class} objects each corresponding to a {@link TypeMirror}.
39  *
40  * @author Joseph D. Darcy
41  * @author Scott Seligman
42  * @author Peter von der Ahé
43  * @see MirroredTypeException
44  * @see Element#getAnnotation(Class)
45  * @since 1.6
46  */
47 public class MirroredTypesException extends RuntimeException {
48 
49     private static final long serialVersionUID = 269;
50 
51     transient List<? extends TypeMirror> types; // cannot be serialized
52 
53     /*
54      * Trusted constructor to be called by MirroredTypeException.
55      */
MirroredTypesException(String message, TypeMirror type)56     MirroredTypesException(String message, TypeMirror type) {
57         super(message);
58         List<TypeMirror> tmp = (new ArrayList<>());
59         tmp.add(type);
60         types = Collections.unmodifiableList(tmp);
61     }
62 
63     /**
64      * Constructs a new MirroredTypesException for the specified types.
65      *
66      * @param types  the types being accessed
67      */
MirroredTypesException(List<? extends TypeMirror> types)68     public MirroredTypesException(List<? extends TypeMirror> types) {
69         super("Attempt to access Class objects for TypeMirrors " +
70               (types = // defensive copy
71                new ArrayList<>(types)).toString() );
72         this.types = Collections.unmodifiableList(types);
73     }
74 
75     /**
76      * Returns the type mirrors corresponding to the types being accessed.
77      * The type mirrors may be unavailable if this exception has been
78      * serialized and then read back in.
79      *
80      * @return the type mirrors in construction order, or {@code null} if unavailable
81      */
getTypeMirrors()82     public List<? extends TypeMirror> getTypeMirrors() {
83         return types;
84     }
85 
86     /**
87      * Explicitly set all transient fields.
88      * @param s the serial stream
89      * @throws ClassNotFoundException for a missing class during
90      * deserialization
91      * @throws IOException for an IO problem during deserialization
92      */
readObject(ObjectInputStream s)93     private void readObject(ObjectInputStream s)
94         throws IOException, ClassNotFoundException {
95         s.defaultReadObject();
96         types = null;
97     }
98 }
99