| /* |
| * Copyright (c) 2003, 2013, 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.xml.xpath; |
| |
| import java.io.PrintWriter; |
| import java.io.IOException; |
| import java.io.ObjectInputStream; |
| import java.io.ObjectOutputStream; |
| import java.io.ObjectStreamField; |
| import java.io.InvalidClassException; |
| |
| /** |
| * <code>XPathException</code> represents a generic XPath exception.</p> |
| * |
| * @author <a href="Norman.Walsh@Sun.com">Norman Walsh</a> |
| * @author <a href="mailto:Jeff.Suttor@Sun.COM">Jeff Suttor</a> |
| * @since 1.5 |
| */ |
| public class XPathException extends Exception { |
| |
| private static final ObjectStreamField[] serialPersistentFields = { |
| new ObjectStreamField( "cause", Throwable.class ) |
| }; |
| |
| /** |
| * <p>Stream Unique Identifier.</p> |
| */ |
| private static final long serialVersionUID = -1837080260374986980L; |
| |
| /** |
| * <p>Constructs a new <code>XPathException</code> |
| * with the specified detail <code>message</code>.</p> |
| * |
| * <p>The <code>cause</code> is not initialized.</p> |
| * |
| * <p>If <code>message</code> is <code>null</code>, |
| * then a <code>NullPointerException</code> is thrown.</p> |
| * |
| * @param message The detail message. |
| * |
| * @throws NullPointerException When <code>message</code> is |
| * <code>null</code>. |
| */ |
| public XPathException(String message) { |
| super(message); |
| if ( message == null ) { |
| throw new NullPointerException ( "message can't be null"); |
| } |
| } |
| |
| /** |
| * <p>Constructs a new <code>XPathException</code> |
| * with the specified <code>cause</code>.</p> |
| * |
| * <p>If <code>cause</code> is <code>null</code>, |
| * then a <code>NullPointerException</code> is thrown.</p> |
| * |
| * @param cause The cause. |
| * |
| * @throws NullPointerException if <code>cause</code> is <code>null</code>. |
| */ |
| public XPathException(Throwable cause) { |
| super(cause); |
| if ( cause == null ) { |
| throw new NullPointerException ( "cause can't be null"); |
| } |
| } |
| |
| /** |
| * <p>Get the cause of this XPathException.</p> |
| * |
| * @return Cause of this XPathException. |
| */ |
| public Throwable getCause() { |
| return super.getCause(); |
| } |
| |
| /** |
| * Writes "cause" field to the stream. |
| * The cause is got from the parent class. |
| * |
| * @param out stream used for serialization. |
| * @throws IOException thrown by <code>ObjectOutputStream</code> |
| * |
| */ |
| private void writeObject(ObjectOutputStream out) |
| throws IOException |
| { |
| ObjectOutputStream.PutField fields = out.putFields(); |
| fields.put("cause", (Throwable) super.getCause()); |
| out.writeFields(); |
| } |
| |
| /** |
| * Reads the "cause" field from the stream. |
| * And initializes the "cause" if it wasn't |
| * done before. |
| * |
| * @param in stream used for deserialization |
| * @throws IOException thrown by <code>ObjectInputStream</code> |
| * @throws ClassNotFoundException thrown by <code>ObjectInputStream</code> |
| */ |
| private void readObject(ObjectInputStream in) |
| throws IOException, ClassNotFoundException |
| { |
| ObjectInputStream.GetField fields = in.readFields(); |
| Throwable scause = (Throwable) fields.get("cause", null); |
| |
| if (super.getCause() == null && scause != null) { |
| try { |
| super.initCause(scause); |
| } catch(IllegalStateException e) { |
| throw new InvalidClassException("Inconsistent state: two causes"); |
| } |
| } |
| } |
| |
| /** |
| * <p>Print stack trace to specified <code>PrintStream</code>.</p> |
| * |
| * @param s Print stack trace to this <code>PrintStream</code>. |
| */ |
| public void printStackTrace(java.io.PrintStream s) { |
| if (getCause() != null) { |
| getCause().printStackTrace(s); |
| s.println("--------------- linked to ------------------"); |
| } |
| |
| super.printStackTrace(s); |
| } |
| |
| /** |
| * <p>Print stack trace to <code>System.err</code>.</p> |
| */ |
| public void printStackTrace() { |
| printStackTrace(System.err); |
| } |
| |
| /** |
| * <p>Print stack trace to specified <code>PrintWriter</code>.</p> |
| * |
| * @param s Print stack trace to this <code>PrintWriter</code>. |
| */ |
| public void printStackTrace(PrintWriter s) { |
| |
| if (getCause() != null) { |
| getCause().printStackTrace(s); |
| s.println("--------------- linked to ------------------"); |
| } |
| |
| super.printStackTrace(s); |
| } |
| } |