1 /* 2 * Copyright (c) 2015, 2017, 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. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 */ 23 24 /* 25 * @test TestPrintReferences 26 * @bug 8136991 27 * @summary Validate the reference processing logging 28 * @key gc 29 * @library /test/lib 30 * @modules java.base/jdk.internal.misc 31 * java.management 32 */ 33 34 import jdk.test.lib.process.OutputAnalyzer; 35 import jdk.test.lib.process.ProcessTools; 36 37 public class TestPrintReferences { 38 public static void main(String[] args) throws Exception { 39 ProcessBuilder pb_enabled = 40 ProcessTools.createJavaProcessBuilder("-Xlog:gc+ref=debug", "-Xmx32M", GCTest.class.getName()); 41 OutputAnalyzer output = new OutputAnalyzer(pb_enabled.start()); 42 43 String gcLogTimeRegex = ".* GC\\([0-9]+\\)"; 44 String countRegex = "[0-9]+"; 45 String timeRegex = "[0-9]+[.,][0-9]+ms\n"; 46 String refDetailRegex = gcLogTimeRegex + " Phase2: " + timeRegex + 47 gcLogTimeRegex + " Phase3: " + timeRegex + 48 gcLogTimeRegex + " Cleared: " + countRegex + "\n" + 49 gcLogTimeRegex + " Discovered: " + countRegex + "\n"; 50 String softRefDetailRegex = gcLogTimeRegex + " Phase1: " + timeRegex + 51 refDetailRegex; 52 53 output.shouldMatch(/* SoftReference processing */ 54 gcLogTimeRegex + " SoftReference " + timeRegex + softRefDetailRegex + 55 /* WeakReference processing */ 56 gcLogTimeRegex + " WeakReference " + timeRegex + refDetailRegex + 57 /* FinalReference processing */ 58 gcLogTimeRegex + " FinalReference " + timeRegex + refDetailRegex + 59 /* PhantomReference processing */ 60 gcLogTimeRegex + " PhantomReference " + timeRegex + refDetailRegex + 61 /* JNI Weak Reference processing */ 62 gcLogTimeRegex + " JNI Weak Reference " + timeRegex + 63 /* Enqueue Reference Lists */ 64 gcLogTimeRegex + " Enqueue reference lists " + timeRegex + 65 /* Enqueued Stats */ 66 gcLogTimeRegex + " Counts: Soft: " + countRegex + " Weak: " + countRegex + 67 " Final: " + countRegex + " Phantom: " + countRegex 68 ); 69 70 output.shouldHaveExitValue(0); 71 } 72 73 static class GCTest { 74 public static void main(String [] args) { 75 System.gc(); 76 } 77 } 78 }