1 /*
2 * Copyright (c) 2015, 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 8143214
27 * @summary Verify outputs of Thread.dumpStack() and Throwable.printStackTrace().
28 * This test should also been run against jdk9 successfully except of
29 * VM option MemberNameInStackFrame.
30 * @run main/othervm DumpStackTest
31 */
32
33 import java.lang.invoke.MethodHandle;
34 import java.lang.invoke.MethodHandles;
35 import java.lang.invoke.MethodType;
36 import java.lang.reflect.Method;
37 import java.util.Arrays;
38 import java.util.function.Consumer;
39
40 public class DumpStackTest {
41
42 public static void main(String args[]) {
43 test();
44 testThread();
45 testLambda();
46 testMethodInvoke();
47 testMethodHandle();
48 }
49
50 static class CallFrame {
51 final String classname;
52 final String methodname;
53 CallFrame(Class<?> c, String methodname) {
54 this(c.getName(), methodname);
55 }
56 CallFrame(String classname, String methodname) {
57 this.classname = classname;
58 this.methodname = methodname;
59 }
60
61 String getClassName() {
62 return classname;
63 }
64 String getMethodName() {
65 return methodname;
66 }
67 String getFileName() {
68 int i = classname.lastIndexOf('.');
69 int j = classname.lastIndexOf('$');
70 String name = classname.substring(i+1, j >= 0 ? j : classname.length());
71 return name + ".java";
72 }
73 @Override
74 public String toString() {
75 return classname + "." + methodname + "(" + getFileName() + ")";
76 }
77 }
78
79 static void test() {
80 CallFrame[] callStack = new CallFrame[] {
81 new CallFrame(Thread.class, "getStackTrace"),
82 new CallFrame(DumpStackTest.class, "test"),
83 new CallFrame(DumpStackTest.class, "main"),
84 // if invoked from jtreg
85 new CallFrame("sun.reflect.NativeMethodAccessorImpl", "invoke0"), // non-public class
86 new CallFrame("sun.reflect.NativeMethodAccessorImpl", "invoke"),
87 new CallFrame("sun.reflect.DelegatingMethodAccessorImpl", "invoke"),
88 new CallFrame(Method.class, "invoke"),
89 new CallFrame(Thread.class, "run"),
90 };
91
92 assertStackTrace(Thread.currentThread().getStackTrace(), callStack);
93 getStackTrace(callStack);
94 }
95
96 static void getStackTrace(CallFrame[] callStack) {
97 // this method is the top of the stack
98 callStack[0] = new CallFrame(DumpStackTest.class, "getStackTrace");
99
100 try {
101 throw new RuntimeException();
102 } catch(RuntimeException ex) {
103 assertStackTrace(ex.getStackTrace(), callStack);
104 }
105 }
106 static void testThread() {
107 Thread t1 = new Thread() {
108 public void run() {
109 c();
110 }
111
112 void c() {
113 CallFrame[] callStack = new CallFrame[] {
114 new CallFrame(Thread.class, "getStackTrace"),
115 new CallFrame(this.getClass(), "c"),
116 new CallFrame(this.getClass(), "run")
117 };
118 assertStackTrace(Thread.currentThread().getStackTrace(), callStack);
119 DumpStackTest.getStackTrace(callStack);
120 }
121 };
122 t1.start();
123 try {
124 t1.join();
125 } catch(InterruptedException e) {}
126 }
127
128 static void testLambda() {
129 Consumer<Void> c = (x) -> consumeLambda();
130 c.accept(null);
131 }
132
133 static void consumeLambda() {
134 CallFrame[] callStack = new CallFrame[]{
135 new CallFrame(Thread.class, "getStackTrace"),
136 new CallFrame(DumpStackTest.class, "consumeLambda"),
137 new CallFrame(DumpStackTest.class, "lambda$testLambda$0"),
138 new CallFrame(DumpStackTest.class, "testLambda"),
139 new CallFrame(DumpStackTest.class, "main"),
140 // if invoked from jtreg
141 new CallFrame("sun.reflect.NativeMethodAccessorImpl", "invoke0"),
142 new CallFrame("sun.reflect.NativeMethodAccessorImpl", "invoke"),
143 new CallFrame("sun.reflect.DelegatingMethodAccessorImpl", "invoke"),
144 new CallFrame(Method.class, "invoke"),
145 new CallFrame(Thread.class, "run")
146 };
147 assertStackTrace(Thread.currentThread().getStackTrace(), callStack);
148 DumpStackTest.getStackTrace(callStack);
149 }
150
151 static void testMethodInvoke() {
152 try {
153 Method m = DumpStackTest.class.getDeclaredMethod("methodInvoke");
154 m.invoke(null);
155 } catch(Exception e) {
156 throw new RuntimeException(e);
157 }
158 }
159
160 static void methodInvoke() {
161 CallFrame[] callStack = new CallFrame[] {
162 new CallFrame(Thread.class, "getStackTrace"),
163 new CallFrame(DumpStackTest.class, "methodInvoke"),
164 new CallFrame("sun.reflect.NativeMethodAccessorImpl", "invoke0"),
165 new CallFrame("sun.reflect.NativeMethodAccessorImpl", "invoke"),
166 new CallFrame("sun.reflect.DelegatingMethodAccessorImpl", "invoke"),
167 new CallFrame(Method.class, "invoke"),
168 new CallFrame(DumpStackTest.class, "testMethodInvoke"),
169 new CallFrame(DumpStackTest.class, "main"),
170 // if invoked from jtreg
171 new CallFrame("sun.reflect.NativeMethodAccessorImpl", "invoke0"),
172 new CallFrame("sun.reflect.NativeMethodAccessorImpl", "invoke"),
173 new CallFrame("sun.reflect.DelegatingMethodAccessorImpl", "invoke"),
174 new CallFrame(Method.class, "invoke"),
175 new CallFrame(Thread.class, "run")
176 };
177 assertStackTrace(Thread.currentThread().getStackTrace(), callStack);
178 DumpStackTest.getStackTrace(callStack);
179 }
180
181 static void testMethodHandle() {
182 MethodHandles.Lookup lookup = MethodHandles.lookup();
183 try {
184 MethodHandle handle = lookup.findStatic(DumpStackTest.class, "methodHandle",
185 MethodType.methodType(void.class));
186 handle.invoke();
187 } catch(Throwable t) {
188 throw new RuntimeException(t);
189 }
190 }
191
192 static void methodHandle() {
193 CallFrame[] callStack = new CallFrame[]{
194 new CallFrame(Thread.class, "getStackTrace"),
195 new CallFrame(DumpStackTest.class, "methodHandle"),
196 new CallFrame(DumpStackTest.class, "testMethodHandle"),
197 new CallFrame(DumpStackTest.class, "main"),
198 // if invoked from jtreg
199 new CallFrame("sun.reflect.NativeMethodAccessorImpl", "invoke0"),
200 new CallFrame("sun.reflect.NativeMethodAccessorImpl", "invoke"),
201 new CallFrame("sun.reflect.DelegatingMethodAccessorImpl", "invoke"),
202 new CallFrame(Method.class, "invoke"),
203 new CallFrame(Thread.class, "run")
204 };
205 assertStackTrace(Thread.currentThread().getStackTrace(), callStack);
206 DumpStackTest.getStackTrace(callStack);
207 }
208
209 static void assertStackTrace(StackTraceElement[] actual, CallFrame[] expected) {
210 System.out.println("--- Actual ---");
211 Arrays.stream(actual).forEach(e -> System.out.println(e));
212 System.out.println("--- Expected ---");
213 Arrays.stream(expected).forEach(e -> System.out.println(e));
214
215 for (int i = 0, j = 0; i < actual.length; i++) {
216 // filter test framework classes
217 if (actual[i].getClassName().startsWith("com.sun.javatest.regtest"))
218 continue;
219 assertEquals(actual[i], expected[j++], i);
220 }
221
222 }
223 static void assertEquals(StackTraceElement actual, CallFrame expected, int idx) {
224 if (!actual.getClassName().equals(expected.getClassName()) ||
225 !actual.getFileName().equals(expected.getFileName()) ||
226 !actual.getMethodName().equals(expected.getMethodName())) {
227 throw new RuntimeException("StackTraceElements mismatch at index " + idx +
228 ". Expected [" + expected + "], but get [" + actual + "]");
229 }
230 }
231 }