1 /* 2 * Copyright (c) 2014, 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 26 * @key nmt regression 27 * @bug 8005936 28 * @summary Make sure PrintNMTStatistics works on normal JVM exit 29 * @library /testlibrary /testlibrary/whitebox 30 * @build PrintNMTStatistics 31 * @run main PrintNMTStatistics 32 */ 33 34 import com.oracle.java.testlibrary.*; 35 36 import java.util.regex.Matcher; 37 import java.util.regex.Pattern; 38 import sun.hotspot.WhiteBox; 39 40 public class PrintNMTStatistics { 41 42 public static void main(String args[]) throws Exception { 43 44 // We start a new java process running with an argument and use WB API to ensure 45 // we have data for NMT on VM exit 46 if (args.length > 0) { 47 // Use WB API to ensure that all data has been merged before we continue 48 if (!WhiteBox.getWhiteBox().NMTWaitForDataMerge()) { 49 throw new Exception("Call to WB API NMTWaitForDataMerge() failed"); 50 } 51 return; 52 } 53 54 ProcessBuilder pb = ProcessTools.createJavaProcessBuilder( 55 "-XX:+UnlockDiagnosticVMOptions", 56 "-Xbootclasspath/a:" + System.getProperty("test.classes"), 57 "-XX:+WhiteBoxAPI", 58 "-XX:NativeMemoryTracking=summary", 59 "-XX:+PrintNMTStatistics", 60 "PrintNMTStatistics", 61 "test"); 62 63 OutputAnalyzer output = new OutputAnalyzer(pb.start()); 64 output.shouldContain("Java Heap (reserved="); 65 output.shouldNotContain("error"); 66 output.shouldHaveExitValue(0); 67 } 68 }