Java example source code file (UnknownTypeException.java)

This example Java source code file (UnknownTypeException.java) is included in the alvinalexander.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" ^TM.

Learn more about this Java project at its project page.

Java - Java tags/keywords

object, typemirror, unknownentityexception, unknowntypeexception

The UnknownTypeException.java Java example source code

/*
 * Copyright (c) 2005, 2009, Oracle and/or its affiliates. All rights reserved.
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * This code is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 only, as
 * published by the Free Software Foundation.  Oracle designates this
 * particular file as subject to the "Classpath" exception as provided
 * by Oracle in the LICENSE file that accompanied this code.
 *
 * This code is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
 * You should have received a copy of the GNU General Public License version
 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
 * or visit www.oracle.com if you need additional information or have any
 * questions.
 */

package javax.lang.model.type;

import javax.lang.model.UnknownEntityException;

/**
 * Indicates that an unknown kind of type was encountered.  This can
 * occur if the language evolves and new kinds of types are added to
 * the {@code TypeMirror} hierarchy.  May be thrown by a {@linkplain
 * TypeVisitor type visitor} to indicate that the visitor was created
 * for a prior version of the language.
 *
 * @author Joseph D. Darcy
 * @author Scott Seligman
 * @author Peter von der Ahé
 * @see TypeVisitor#visitUnknown
 * @since 1.6
 */
public class UnknownTypeException extends UnknownEntityException {

    private static final long serialVersionUID = 269L;

    private transient TypeMirror type;
    private transient Object parameter;

    /**
     * Creates a new {@code UnknownTypeException}.The {@code p}
     * parameter may be used to pass in an additional argument with
     * information about the context in which the unknown type was
     * encountered; for example, the visit methods of {@link
     * TypeVisitor} may pass in their additional parameter.
     *
     * @param t the unknown type, may be {@code null}
     * @param p an additional parameter, may be {@code null}
     */
    public UnknownTypeException(TypeMirror t, Object p) {
        super("Unknown type: " + t);
        type = t;
        this.parameter = p;
    }

    /**
     * Returns the unknown type.
     * The value may be unavailable if this exception has been
     * serialized and then read back in.
     *
     * @return the unknown type, or {@code null} if unavailable
     */
    public TypeMirror getUnknownType() {
        return type;
    }

    /**
     * Returns the additional argument.
     *
     * @return the additional argument
     */
    public Object getArgument() {
        return parameter;
    }
}