1 /*
2 * Copyright (c) 2024, 2025, 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 /*
26 * @test id=static
27 * @summary Dump time resolution of constant pool entries (Static CDS archive).
28 * @requires vm.cds
29 * @requires vm.cds.supports.aot.class.linking
30 * @requires vm.compMode != "Xcomp"
31 * @library /test/lib /test/hotspot/jtreg/runtime/cds/appcds/test-classes/
32 * @build OldProvider OldClass OldConsumer StringConcatTestOld
33 * @build ResolvedConstants
34 * @run driver jdk.test.lib.helpers.ClassFileInstaller -jar app.jar
35 * ResolvedConstantsApp ResolvedConstantsFoo ResolvedConstantsBar
36 * MyInterface InterfaceWithClinit NormalClass
37 * OldProvider OldClass OldConsumer SubOfOldClass
38 * StringConcatTest StringConcatTestOld
39 * @run driver ResolvedConstants STATIC
40 */
41
42 /*
43 * @test id=dynamic
44 * @summary Dump time resolution of constant pool entries (Dynamic CDS archive)
45 * @requires vm.cds
46 * @requires vm.cds.supports.aot.class.linking
47 * @requires vm.compMode != "Xcomp"
48 * @library /test/lib /test/hotspot/jtreg/runtime/cds/appcds/test-classes/
49 * @build OldProvider OldClass OldConsumer StringConcatTestOld
50 * @build ResolvedConstants
51 * @run driver jdk.test.lib.helpers.ClassFileInstaller -jar app.jar
52 * ResolvedConstantsApp ResolvedConstantsFoo ResolvedConstantsBar
53 * MyInterface InterfaceWithClinit NormalClass
54 * OldProvider OldClass OldConsumer SubOfOldClass
55 * StringConcatTest StringConcatTestOld
56 * @build jdk.test.whitebox.WhiteBox
57 * @run driver jdk.test.lib.helpers.ClassFileInstaller jdk.test.whitebox.WhiteBox
58 * @run main/othervm -Dcds.app.tester.workflow=DYNAMIC -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI -Xbootclasspath/a:. ResolvedConstants DYNAMIC
59 */
60
61 import java.util.function.Consumer;
62 import jdk.test.lib.cds.CDSOptions;
63 import jdk.test.lib.cds.CDSTestUtils;
64 import jdk.test.lib.cds.SimpleCDSAppTester;
65 import jdk.test.lib.helpers.ClassFileInstaller;
66 import jdk.test.lib.process.OutputAnalyzer;
67
68 public class ResolvedConstants {
69 static final String classList = "ResolvedConstants.classlist";
70 static final String appJar = ClassFileInstaller.getJarPath("app.jar");
71 static final String mainClass = ResolvedConstantsApp.class.getName();
72
73 static boolean aotClassLinking;
74 public static void main(String[] args) throws Exception {
75 test(args, false);
76 test(args, true);
77 }
78
79 static void test(String[] args, boolean testMode) throws Exception {
80 aotClassLinking = testMode;
81
82 SimpleCDSAppTester.of("ResolvedConstantsApp" + (aotClassLinking ? "1" : "0"))
83 .addVmArgs(aotClassLinking ? "-XX:+AOTClassLinking" : "-XX:-AOTClassLinking",
84 "-Xlog:aot+resolve=trace",
85 "-Xlog:aot+class=debug",
86 "-Xlog:cds+class=debug")
87 .classpath(appJar)
88 .appCommandLine(mainClass)
89 .setAssemblyChecker((OutputAnalyzer out) -> {
90 checkAssemblyOutput(args, out);
91 })
92 .setProductionChecker((OutputAnalyzer out) -> {
93 out.shouldContain("Hello ResolvedConstantsApp");
94 })
95 .run(args);
96 }
97
98 static void checkAssemblyOutput(String args[], OutputAnalyzer out) {
99 testGroup("Class References", out)
100 // Always resolve reference when a class references itself
101 .shouldMatch(ALWAYS("klass.* ResolvedConstantsApp app => ResolvedConstantsApp app"))
102
103 // Always resolve reference when a class references a super class
104 .shouldMatch(ALWAYS("klass.* ResolvedConstantsApp app => java/lang/Object boot"))
105 .shouldMatch(ALWAYS("klass.* ResolvedConstantsBar app => ResolvedConstantsFoo app"))
106
107 // Always resolve reference when a class references a super interface
108 .shouldMatch(ALWAYS("klass.* ResolvedConstantsApp app => java/lang/Runnable boot"))
109
110 /** premain allows static method pre-resolution
111 // Without -XX:+AOTClassLinking:
112 // java/lang/System is in the boot loader but ResolvedConstantsApp is loaded by the app loader.
113 // Even though System is in the vmClasses list, when ResolvedConstantsApp looks up
114 // "java/lang/System" in its ConstantPool, the app loader may not have resolved the System
115 // class yet (i.e., there's no initiaited class entry for System in the app loader's dictionary)
116 .shouldMatch(AOTLINK_ONLY("klass.* ResolvedConstantsApp .*java/lang/System"))
117 **/
118 ;
119
120 testGroup("Field References", out)
121 // Always resolve references to fields in the current class or super class(es)
122 .shouldMatch(ALWAYS("field.* ResolvedConstantsBar => ResolvedConstantsBar.b:I"))
123 .shouldMatch(ALWAYS("field.* ResolvedConstantsBar => ResolvedConstantsBar.a:I"))
124 .shouldMatch(ALWAYS("field.* ResolvedConstantsBar => ResolvedConstantsFoo.a:I"))
125 .shouldMatch(ALWAYS("field.* ResolvedConstantsFoo => ResolvedConstantsFoo.a:I"))
126
127 // Resolve field references to child classes ONLY when using -XX:+AOTClassLinking
128 .shouldMatch(AOTLINK_ONLY("field.* ResolvedConstantsFoo => ResolvedConstantsBar.a:I"))
129 .shouldMatch(AOTLINK_ONLY("field.* ResolvedConstantsFoo => ResolvedConstantsBar.b:I"))
130
131 // Resolve field references to unrelated classes ONLY when using -XX:+AOTClassLinking
132 .shouldMatch(AOTLINK_ONLY("field.* ResolvedConstantsApp => ResolvedConstantsBar.a:I"))
133 .shouldMatch(AOTLINK_ONLY("field.* ResolvedConstantsApp => ResolvedConstantsBar.b:I"));
134
135 if (args[0].equals("DYNAMIC")) {
136 // AOT resolution of CP methods/indy references is not implemeted
137 return;
138 }
139
140 testGroup("Method References", out)
141 // Should resolve references to own constructor
142 .shouldMatch(ALWAYS("method.* ResolvedConstantsApp ResolvedConstantsApp.<init>:"))
143 // Should resolve references to super constructor
144 .shouldMatch(ALWAYS("method.* ResolvedConstantsApp java/lang/Object.<init>:"))
145
146 // Should resolve interface methods in VM classes
147 .shouldMatch(ALWAYS("interface method .* ResolvedConstantsApp java/lang/Runnable.run:"))
148
149 // Should resolve references to own non-static method (private or public)
150 .shouldMatch(ALWAYS("method.*: ResolvedConstantsBar ResolvedConstantsBar.doBar:"))
151 .shouldMatch(ALWAYS("method.*: ResolvedConstantsApp ResolvedConstantsApp.privateInstanceCall:"))
152 .shouldMatch(ALWAYS("method.*: ResolvedConstantsApp ResolvedConstantsApp.publicInstanceCall:"))
153 /** premain allows static method pre-resolution
154 // Should not resolve references to static method
155 .shouldNotMatch(ALWAYS("method.*: ResolvedConstantsApp ResolvedConstantsApp.staticCall:"))
156 **/
157
158 // Should resolve references to method in super type
159 .shouldMatch(ALWAYS("method.*: ResolvedConstantsBar ResolvedConstantsFoo.doBar:"))
160
161 // Without -XX:+AOTClassLinking App class cannot resolve references to methods in boot classes:
162 // When the app class loader tries to resolve a class X that's normally loaded by
163 // the boot loader, it's possible for the app class loader to get a different copy of
164 // X (by using MethodHandles.Lookup.defineClass(), etc). Therefore, let's be on
165 // the side of safety and revert all such references.
166 .shouldMatch(AOTLINK_ONLY("method.*: ResolvedConstantsApp java/io/PrintStream.println:"))
167 .shouldMatch(AOTLINK_ONLY("method.*: ResolvedConstantsBar java/lang/Class.getName:"))
168
169 // Resole resolve methods in unrelated classes ONLY when using -XX:+AOTClassLinking
170 .shouldMatch(AOTLINK_ONLY("method.*: ResolvedConstantsApp ResolvedConstantsBar.doit:"))
171
172 // End ---
173 ;
174
175
176 // Indy References ---
177 if (aotClassLinking) {
178 /** premain allows Old classes to be linked
179 testGroup("Indy References", out)
180 .shouldContain("Cannot aot-resolve Lambda proxy because OldConsumer is excluded")
181 .shouldContain("Cannot aot-resolve Lambda proxy because OldProvider is excluded")
182 .shouldContain("Cannot aot-resolve Lambda proxy because OldClass is excluded")
183 .shouldContain("Cannot aot-resolve Lambda proxy of interface type InterfaceWithClinit")
184 .shouldMatch("klasses.* app *NormalClass[$][$]Lambda/.* hidden aot-linked inited")
185 .shouldNotMatch("klasses.* app *SubOfOldClass[$][$]Lambda/")
186 .shouldMatch("archived indy *CP entry.*StringConcatTest .* => java/lang/invoke/StringConcatFactory.makeConcatWithConstants")
187 .shouldNotMatch("archived indy *CP entry.*StringConcatTestOld .* => java/lang/invoke/StringConcatFactory.makeConcatWithConstants");
188 **/
189 }
190 }
191
192 static String ALWAYS(String s) {
193 return ",resolve.*archived " + s;
194 }
195
196 static String AOTLINK_ONLY(String s) {
197 if (aotClassLinking) {
198 return ALWAYS(s);
199 } else {
200 return ",resolve.*reverted " + s;
201 }
202 }
203
204 static OutputAnalyzer testGroup(String name, OutputAnalyzer out) {
205 System.out.println("Checking for: " + name);
206 return out;
207 }
208 }
209
210 class ResolvedConstantsApp implements Runnable {
211 public static void main(String args[]) {
212 System.out.println("Hello ResolvedConstantsApp");
213 ResolvedConstantsApp app = new ResolvedConstantsApp();
214 ResolvedConstantsApp.staticCall();
215 app.privateInstanceCall();
216 app.publicInstanceCall();
217 Object a = app;
218 ((Runnable)a).run();
219
220 ResolvedConstantsFoo foo = new ResolvedConstantsFoo();
221 ResolvedConstantsBar bar = new ResolvedConstantsBar();
222 bar.a ++;
223 bar.b ++;
224 bar.doit();
225
226 testLambda();
227 StringConcatTest.test();
228 StringConcatTestOld.main(null);
229 }
230 private static void staticCall() {}
231 private void privateInstanceCall() {}
232 public void publicInstanceCall() {}
233
234 public void run() {}
235
236 static void testLambda() {
237 // The functional type used in the Lambda is an excluded class
238 OldProvider op = () -> {
239 return null;
240 };
241
242 // A captured value is an instance of an excluded Class
243 OldClass c = new OldClass();
244 Runnable r = () -> {
245 System.out.println("Test 1 " + c);
246 };
247 r.run();
248
249 // The functional interface accepts an argument that's an excluded class
250 MyInterface i = (o) -> {
251 System.out.println("Test 2 " + o);
252 };
253 i.dispatch(c);
254
255 // Method reference to old class
256 OldConsumer oldConsumer = new OldConsumer();
257 Consumer<String> wrapper = oldConsumer::consumeString;
258 wrapper.accept("Hello");
259
260 // Lambda of interfaces that have <clinit> are not archived.
261 InterfaceWithClinit i2 = () -> {
262 System.out.println("Test 3");
263 };
264 i2.dispatch();
265
266 // These two classes have almost identical source code, but
267 // only NormalClass should have its lambdas pre-resolved.
268 // SubOfOldClass is "old" -- it should be excluded from the AOT cache,
269 // so none of its lambda proxies should be cached
270 NormalClass.testLambda(); // Lambda proxy should be cached
271 SubOfOldClass.testLambda(); // Lambda proxy shouldn't be cached
272 }
273 }
274
275 class StringConcatTest {
276 static void test() {
277 System.out.println("StringConcatTest <concat> " + new StringConcatTest()); // concat should be aot-resolved
278 }
279 }
280
281 /* see StringConcatTestOld.jasm
282
283 class StringConcatTestOld {
284 public static void main(String args[]) {
285 // concat should be aot-resolved => the MethodType refers to an old class
286 System.out.println("StringConcatTestOld <concat> " + new OldConsumer());
287 }
288 }
289 */
290
291 class NormalClass {
292 static void testLambda() {
293 Runnable r = () -> {
294 System.out.println("NormalClass testLambda");
295 };
296 r.run();
297 }
298 }
299
300 class SubOfOldClass extends OldClass {
301 static void testLambda() {
302 Runnable r = () -> {
303 System.out.println("SubOfOldClass testLambda");
304 };
305 r.run();
306 }
307 }
308
309 interface MyInterface {
310 void dispatch(OldClass c);
311 }
312
313 interface InterfaceWithClinit {
314 static final long X = System.currentTimeMillis();
315 void dispatch();
316 default long dummy() { return X; }
317 }
318
319 class ResolvedConstantsFoo {
320 int a = 1;
321 void doit() {
322 }
323
324 void doBar(ResolvedConstantsBar bar) {
325 bar.a ++;
326 bar.b ++;
327 }
328 }
329
330 class ResolvedConstantsBar extends ResolvedConstantsFoo {
331 int b = 2;
332 void doit() {
333 System.out.println("Hello ResolvedConstantsBar and " + ResolvedConstantsFoo.class.getName());
334 System.out.println("a = " + a);
335 System.out.println("a = " + ((ResolvedConstantsFoo)this).a);
336 System.out.println("b = " + b);
337
338 doBar(this);
339
340 ((ResolvedConstantsFoo)this).doBar(this);
341 }
342 }