| /* |
| * Copyright (c) 2005, 2014, 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 sun.io; |
| |
| /** |
| * Used to set the Windows error mode at VM initialization time. |
| * <p> |
| * The error mode decides whether the system will handle specific types of serious errors |
| * or whether the process will handle them. |
| * |
| * @since 1.6 |
| */ |
| public class Win32ErrorMode { |
| |
| // The system does not display the critical-error-handler message box. Instead, |
| // the system sends the error to the calling process. |
| private static final long SEM_FAILCRITICALERRORS = 0x0001; |
| |
| // The system does not display the general-protection-fault message box. This flag should |
| // only be set by debugging applications that handle general protection (GP) faults themselves |
| // with an exception handler. |
| private static final long SEM_NOGPFAULTERRORBOX = 0x0002; |
| |
| // The system automatically fixes memory alignment faults and makes them invisible |
| // to the application. It does this for the calling process and any descendant processes. |
| private static final long SEM_NOALIGNMENTFAULTEXCEPT = 0x0004; |
| |
| // The system does not display a message box when it fails to find a file. Instead, |
| // the error is returned to the calling process. |
| private static final long SEM_NOOPENFILEERRORBOX = 0x8000; |
| |
| private Win32ErrorMode() { |
| } |
| |
| /** |
| * Invoke at VM initialization time to disable the critical error message box. |
| * <p> |
| * The critial error message box is disabled unless the system property |
| * {@code sun.io.allowCriticalErrorMessageBox} is set to something other than |
| * {@code false}. This includes the empty string. |
| * <p> |
| * This method does nothing if invoked after VM and class library initialization |
| * has completed. |
| */ |
| public static void initialize() { |
| if (!jdk.internal.misc.VM.isBooted()) { |
| String s = System.getProperty("sun.io.allowCriticalErrorMessageBox"); |
| if (s == null || s.equals(Boolean.FALSE.toString())) { |
| long mode = setErrorMode(0); |
| mode |= SEM_FAILCRITICALERRORS; |
| setErrorMode(mode); |
| } |
| } |
| } |
| |
| // Win32 SetErrorMode |
| private static native long setErrorMode(long mode); |
| } |