| /* |
| * Copyright (c) 1998, 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 com.sun.jdi.event; |
| |
| import com.sun.jdi.*; |
| |
| /** |
| * Notification of an exception in the target VM. When an exception |
| * is thrown which satisfies a currently enabled |
| * {@link com.sun.jdi.request.ExceptionRequest exception request}, |
| * an {@link EventSet event set} |
| * containing an instance of this class will be added |
| * to the VM's event queue. |
| * If the exception is thrown from a non-native method, |
| * the exception event is generated at the location where the |
| * exception is thrown. |
| * If the exception is thrown from a native method, the exception event |
| * is generated at the first non-native location reached after the exception |
| * is thrown. |
| * |
| * @author Robert Field |
| * @since 1.3 |
| */ |
| @jdk.Exported |
| public interface ExceptionEvent extends LocatableEvent { |
| |
| /** |
| * Gets the thrown exception object. The exception object is |
| * an instance of {@link java.lang.Throwable} or a subclass in the |
| * target VM. |
| * |
| * @return an {@link ObjectReference} which mirrors the thrown object in |
| * the target VM. |
| */ |
| public ObjectReference exception(); |
| |
| /** |
| * Gets the location where the exception will be caught. An exception |
| * is considered to be caught if, at the point of the throw, the |
| * current location is dynamically enclosed in a try statement that |
| * handles the exception. (See the JVM specification for details). |
| * If there is such a try statement, the catch location is the |
| * first code index of the appropriate catch clause. |
| * <p> |
| * If there are native methods in the call stack at the time of the |
| * exception, there are important restrictions to note about the |
| * returned catch location. In such cases, |
| * it is not possible to predict whether an exception will be handled |
| * by some native method on the call stack. |
| * Thus, it is possible that exceptions considered uncaught |
| * here will, in fact, be handled by a native method and not cause |
| * termination of the target VM. Furthermore, it cannot be assumed that the |
| * catch location returned here will ever be reached by the throwing |
| * thread. If there is |
| * a native frame between the current location and the catch location, |
| * the exception might be handled and cleared in that native method |
| * instead. |
| * <p> |
| * Note that the compiler can generate try-catch blocks in some cases |
| * where they are not explicit in the source code; for example, |
| * the code generated for <code>synchronized</code> and |
| * <code>finally</code> blocks can contain implicit try-catch blocks. |
| * If such an implicitly generated try-catch is |
| * present on the call stack at the time of the throw, the exception |
| * will be considered caught even though it appears to be uncaught from |
| * examination of the source code. |
| * |
| * @return the {@link Location} where the exception will be caught or null if |
| * the exception is uncaught. |
| */ |
| public Location catchLocation(); |
| } |