1 /* 2 * Copyright (c) 2002, 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. 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 * @bug 4629548 27 * @summary Deferred StepRequests are lost in multithreaded debuggee 28 * @comment converted from test/jdk/com/sun/jdi/DeferredStepTest.sh 29 * 30 * @library /test/lib 31 * @build DeferredStepTest 32 * @run main/othervm DeferredStepTest 33 */ 34 35 import jdk.test.lib.Asserts; 36 import jdk.test.lib.Utils; 37 import lib.jdb.JdbCommand; 38 import lib.jdb.JdbTest; 39 40 import java.util.HashMap; 41 import java.util.List; 42 import java.util.Map; 43 import java.util.regex.Matcher; 44 import java.util.regex.Pattern; 45 import java.util.stream.Collectors; 46 47 class DeferredStepTestTarg { 48 static class jj1 implements Runnable { run()49 public void run() { 50 int count = 0; 51 52 for (int ii = 0; ii < 15; ii++) { 53 int intInPotato04 = 666; 54 ++count; // @1 breakpoint 55 System.out.println("Thread: " + Thread.currentThread().getName()); 56 } 57 } 58 } 59 60 static class jj2 implements Runnable { run()61 public void run() { 62 int count2 = 0; 63 64 for (int ii = 0; ii < 15; ii++) { 65 String StringInPotato05 = "I am"; 66 ++count2; // @2 breakpoint 67 System.out.println("Thread: " + Thread.currentThread().getName()); 68 } 69 } 70 } 71 main(String argv[])72 public static void main(String argv[]) { 73 System.out.println("Version = " + System.getProperty("java.version")); 74 75 jj1 obj1 = new jj1(); 76 jj2 obj2 = new jj2(); 77 new Thread(obj1, "jj1").start(); 78 new Thread(obj2, "jj2").start(); 79 } 80 } 81 82 public class DeferredStepTest extends JdbTest { main(String argv[])83 public static void main(String argv[]) { 84 new DeferredStepTest().run(); 85 } 86 DeferredStepTest()87 private DeferredStepTest() { 88 super(DeferredStepTestTarg.class.getName()); 89 } 90 91 private static class ThreadData { 92 int lastLine = -1; // line of the last stop 93 int minLine = -1; // min line (-1 means "not known yet") 94 int maxLine = -1; // max line (-1 means "not known yet") 95 } 96 97 private Map<String, ThreadData> threadData = new HashMap<>(); 98 99 private Pattern threadRegexp = Pattern.compile("^(.+)\\[\\d+\\].*"); 100 private Pattern lineRegexp = Pattern.compile("^(\\d+)\\b.*", Pattern.MULTILINE); 101 102 // returns the 1st group of the pattern. parse(Pattern p, String input)103 private String parse(Pattern p, String input) { 104 Matcher m = p.matcher(input); 105 if (!m.find()) { 106 throw new RuntimeException("Input '" + input + "' does not matches '" + p.pattern() + "'"); 107 } 108 return m.group(1); 109 } 110 next()111 private void next() { 112 List<String> reply = jdb.command(JdbCommand.next()); 113 /* 114 * Each "next" produces something like ("Breakpoint hit" line only if the line has BP) 115 * Step completed: 116 * Breakpoint hit: "thread=jj2", DeferredStepTestTarg$jj2.run(), line=74 bci=12 117 * 74 ++count2; // @ 2 breakpoint 118 * <empty line> 119 * jj2[1] 120 */ 121 // detect thread from the last line 122 String lastLine = reply.get(reply.size() - 1); 123 String threadName = parse(threadRegexp, lastLine); 124 String wholeReply = reply.stream().collect(Collectors.joining(Utils.NEW_LINE)); 125 int lineNum = Integer.parseInt(parse(lineRegexp, wholeReply)); 126 127 System.out.println("got: thread=" + threadName + ", line=" + lineNum); 128 129 ThreadData data = threadData.get(threadName); 130 if (data == null) { 131 data = new ThreadData(); 132 threadData.put(threadName, data); 133 } 134 processThreadData(threadName, lineNum, data); 135 } 136 processThreadData(String threadName, int lineNum, ThreadData data)137 private void processThreadData(String threadName, int lineNum, ThreadData data) { 138 int lastLine = data.lastLine; 139 data.lastLine = lineNum; 140 if (lastLine < 0) { 141 // the 1st stop in the thread 142 return; 143 } 144 if (lineNum == lastLine + 1) { 145 // expected. 146 return; 147 } 148 if (lineNum < lastLine) { 149 // looks like step to the beginning of the cycle 150 if (data.minLine > 0) { 151 // minLine and maxLine are not set - verify 152 Asserts.assertEquals(lineNum, data.minLine, threadName + " - minLine"); 153 Asserts.assertEquals(lastLine, data.maxLine, threadName + " - maxLine"); 154 } else { 155 // set minLine/maxLine 156 data.minLine = lineNum; 157 data.maxLine = lastLine; 158 } 159 return; 160 } 161 throw new RuntimeException(threadName + " (line " + lineNum + ") - unexpected." 162 + " lastLine=" + lastLine + ", minLine=" + data.minLine + ", maxLine=" + data.maxLine); 163 } 164 165 @Override runCases()166 protected void runCases() { 167 setBreakpoints(jdb, DeferredStepTestTarg.jj1.class.getName(), 168 getTestSourcePath("DeferredStepTest.java"), 1); 169 setBreakpoints(jdb, DeferredStepTestTarg.jj2.class.getName(), 170 getTestSourcePath("DeferredStepTest.java"), 2); 171 172 // Run to breakpoint #1 173 jdb.command(JdbCommand.run()); 174 175 // 2 cycles (15 iterations) with 4 lines each, 1st break at 3rd line - 58 stops 176 for (int i = 0; i < 50; i++) { 177 next(); 178 } 179 } 180 } 181