1 /* java.lang.VMThrowable -- VM support methods for Throwable. 2 Copyright (C) 1998, 1999, 2002, 2004, 2005, 2006 3 Free Software Foundation, Inc. 4 5 This file is part of GNU Classpath. 6 7 GNU Classpath is free software; you can redistribute it and/or modify 8 it under the terms of the GNU General Public License as published by 9 the Free Software Foundation; either version 2, or (at your option) 10 any later version. 11 12 GNU Classpath is distributed in the hope that it will be useful, but 13 WITHOUT ANY WARRANTY; without even the implied warranty of 14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 15 General Public License for more details. 16 17 You should have received a copy of the GNU General Public License 18 along with GNU Classpath; see the file COPYING. If not, write to the 19 Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 20 02110-1301 USA. 21 22 Linking this library statically or dynamically with other modules is 23 making a combined work based on this library. Thus, the terms and 24 conditions of the GNU General Public License cover the whole 25 combination. 26 27 As a special exception, the copyright holders of this library give you 28 permission to link this library with independent modules to produce an 29 executable, regardless of the license terms of these independent 30 modules, and to copy and distribute the resulting executable under 31 terms of your choice, provided that you also meet, for each linked 32 independent module, the terms and conditions of the license of that 33 module. An independent module is a module which is not derived from 34 or based on this library. If you modify this library, you may extend 35 this exception to your version of the library, but you are not 36 obligated to do so. If you do not wish to do so, delete this 37 exception statement from your version. */ 38 39 package java.lang; 40 41 import gnu.gcj.RawDataManaged; 42 43 /** 44 * VM dependent state and support methods Throwable. 45 * It is deliberately package local and final and should only be accessed 46 * by the Throwable class. 47 * <p> 48 * This is the version used by libgcj (http://gcc.gnu.org/java/). 49 * 50 * @author Mark Wielaard (mark@klomp.org) 51 */ 52 final class VMThrowable 53 { 54 /** 55 * Private contructor, create VMThrowables with StackTrace(); 56 */ VMThrowable()57 private VMThrowable() { } 58 59 /** 60 * Fill in the stack trace with the current execution stack. 61 * Called by <code>Throwable.fillInStackTrace()</code> to get the state of 62 * the VM. Can return null when the VM does not support caputing the VM 63 * execution state. 64 * 65 * @return a new VMThrowable containing the current execution stack trace. 66 * @see Throwable#fillInStackTrace() 67 */ fillInStackTrace(Throwable t)68 static native VMThrowable fillInStackTrace(Throwable t); 69 70 /** 71 * Returns an <code>StackTraceElement</code> array based on the execution 72 * state of the VM as captured by <code>fillInStackTrace</code>. 73 * Called by <code>Throwable.getStackTrace()</code>. 74 * 75 * @return a non-null but possible zero length array of StackTraceElement. 76 * @see Throwable#getStackTrace() 77 */ getStackTrace(Throwable t)78 native StackTraceElement[] getStackTrace(Throwable t); 79 80 // Native stack data. 81 private RawDataManaged data; 82 } 83