1 /* 2 * Copyright (c) 2015, 2018, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. Oracle designates this 8 * particular file as subject to the "Classpath" exception as provided 9 * by Oracle in the LICENSE file that accompanied this code. 10 * 11 * This code is distributed in the hope that it will be useful, but WITHOUT 12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 14 * version 2 for more details (a copy is included in the LICENSE file that 15 * accompanied this code). 16 * 17 * You should have received a copy of the GNU General Public License version 18 * 2 along with this work; if not, write to the Free Software Foundation, 19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 20 * 21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 22 * or visit www.oracle.com if you need additional information or have any 23 * questions. 24 */ 25 26 package sun.java2d.marlin; 27 28 29 public final class MarlinUtils { 30 // Marlin logger 31 private static final sun.util.logging.PlatformLogger LOG; 32 33 static { 34 if (MarlinConst.USE_LOGGER) { 35 LOG = sun.util.logging.PlatformLogger.getLogger("sun.java2d.marlin"); 36 } else { 37 LOG = null; 38 } 39 } 40 41 private MarlinUtils() { 42 // no-op 43 } 44 45 public static void logInfo(final String msg) { 46 if (MarlinConst.USE_LOGGER) { 47 LOG.info(msg); 48 } else if (MarlinConst.ENABLE_LOGS) { 49 System.out.print("INFO: "); 50 System.out.println(msg); 51 } 52 } 53 54 public static void logException(final String msg, final Throwable th) { 55 if (MarlinConst.USE_LOGGER) { 56 LOG.warning(msg, th); 57 } else if (MarlinConst.ENABLE_LOGS) { 58 System.out.print("WARNING: "); 59 System.out.println(msg); 60 th.printStackTrace(System.err); 61 } 62 } 63 64 // From sun.awt.util.ThreadGroupUtils 65 66 /** 67 * Returns a root thread group. 68 * Should be called with {@link sun.security.util.SecurityConstants#MODIFY_THREADGROUP_PERMISSION} 69 * 70 * @return a root {@code ThreadGroup} 71 */ 72 public static ThreadGroup getRootThreadGroup() { 73 ThreadGroup currentTG = Thread.currentThread().getThreadGroup(); 74 ThreadGroup parentTG = currentTG.getParent(); 75 while (parentTG != null) { 76 currentTG = parentTG; 77 parentTG = currentTG.getParent(); 78 } 79 return currentTG; 80 } 81 }