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.
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5 * This code is free software; you can redistribute it and/or modify it
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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).
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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,
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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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 // Without -XX:+AOTClassLinking:
111 // java/lang/System is in the boot loader but ResolvedConstantsApp is loaded by the app loader.
112 // Even though System is in the vmClasses list, when ResolvedConstantsApp looks up
113 // "java/lang/System" in its ConstantPool, the app loader may not have resolved the System
114 // class yet (i.e., there's no initiaited class entry for System in the app loader's dictionary)
115 .shouldMatch(AOTLINK_ONLY("klass.* ResolvedConstantsApp .*java/lang/System"));
116
117 testGroup("Field References", out)
118 // Always resolve references to fields in the current class or super class(es)
119 .shouldMatch(ALWAYS("field.* ResolvedConstantsBar => ResolvedConstantsBar.b:I"))
120 .shouldMatch(ALWAYS("field.* ResolvedConstantsBar => ResolvedConstantsBar.a:I"))
121 .shouldMatch(ALWAYS("field.* ResolvedConstantsBar => ResolvedConstantsFoo.a:I"))
122 .shouldMatch(ALWAYS("field.* ResolvedConstantsFoo => ResolvedConstantsFoo.a:I"))
123
124 // Resolve field references to child classes ONLY when using -XX:+AOTClassLinking
125 .shouldMatch(AOTLINK_ONLY("field.* ResolvedConstantsFoo => ResolvedConstantsBar.a:I"))
126 .shouldMatch(AOTLINK_ONLY("field.* ResolvedConstantsFoo => ResolvedConstantsBar.b:I"))
127
128 // Resolve field references to unrelated classes ONLY when using -XX:+AOTClassLinking
129 .shouldMatch(AOTLINK_ONLY("field.* ResolvedConstantsApp => ResolvedConstantsBar.a:I"))
130 .shouldMatch(AOTLINK_ONLY("field.* ResolvedConstantsApp => ResolvedConstantsBar.b:I"));
131
132 if (args[0].equals("DYNAMIC")) {
133 // AOT resolution of CP methods/indy references is not implemeted
134 return;
135 }
136
137 testGroup("Method References", out)
138 // Should resolve references to own constructor
139 .shouldMatch(ALWAYS("method.* ResolvedConstantsApp ResolvedConstantsApp.<init>:"))
140 // Should resolve references to super constructor
141 .shouldMatch(ALWAYS("method.* ResolvedConstantsApp java/lang/Object.<init>:"))
142
143 // Should resolve interface methods in VM classes
144 .shouldMatch(ALWAYS("interface method .* ResolvedConstantsApp java/lang/Runnable.run:"))
145
146 // Should resolve references to own non-static method (private or public)
147 .shouldMatch(ALWAYS("method.*: ResolvedConstantsBar ResolvedConstantsBar.doBar:"))
148 .shouldMatch(ALWAYS("method.*: ResolvedConstantsApp ResolvedConstantsApp.privateInstanceCall:"))
149 .shouldMatch(ALWAYS("method.*: ResolvedConstantsApp ResolvedConstantsApp.publicInstanceCall:"))
150
151 // Should not resolve references to static method
152 .shouldNotMatch(ALWAYS("method.*: ResolvedConstantsApp ResolvedConstantsApp.staticCall:"))
153
154 // Should resolve references to method in super type
155 .shouldMatch(ALWAYS("method.*: ResolvedConstantsBar ResolvedConstantsFoo.doBar:"))
156
157 // Without -XX:+AOTClassLinking App class cannot resolve references to methods in boot classes:
158 // When the app class loader tries to resolve a class X that's normally loaded by
159 // the boot loader, it's possible for the app class loader to get a different copy of
160 // X (by using MethodHandles.Lookup.defineClass(), etc). Therefore, let's be on
161 // the side of safety and revert all such references.
162 .shouldMatch(AOTLINK_ONLY("method.*: ResolvedConstantsApp java/io/PrintStream.println:"))
163 .shouldMatch(AOTLINK_ONLY("method.*: ResolvedConstantsBar java/lang/Class.getName:"))
164
165 // Resole resolve methods in unrelated classes ONLY when using -XX:+AOTClassLinking
166 .shouldMatch(AOTLINK_ONLY("method.*: ResolvedConstantsApp ResolvedConstantsBar.doit:"))
167
168 // End ---
169 ;
170
171
172 // Indy References ---
173 if (aotClassLinking) {
174 testGroup("Indy References", out)
175 .shouldContain("Cannot aot-resolve Lambda proxy because OldConsumer is excluded")
176 .shouldContain("Cannot aot-resolve Lambda proxy because OldProvider is excluded")
177 .shouldContain("Cannot aot-resolve Lambda proxy because OldClass is excluded")
178 .shouldContain("Cannot aot-resolve Lambda proxy of interface type InterfaceWithClinit")
179 .shouldMatch("klasses.* app *NormalClass[$][$]Lambda/.* hidden aot-linked inited")
180 .shouldNotMatch("klasses.* app *SubOfOldClass[$][$]Lambda/")
181 .shouldMatch("archived indy *CP entry.*StringConcatTest .* => java/lang/invoke/StringConcatFactory.makeConcatWithConstants")
182 .shouldNotMatch("archived indy *CP entry.*StringConcatTestOld .* => java/lang/invoke/StringConcatFactory.makeConcatWithConstants");
183 }
184 }
185
186 static String ALWAYS(String s) {
187 return ",resolve.*archived " + s;
188 }
189
190 static String AOTLINK_ONLY(String s) {
191 if (aotClassLinking) {
192 return ALWAYS(s);
193 } else {
194 return ",resolve.*reverted " + s;
195 }
196 }
197
198 static OutputAnalyzer testGroup(String name, OutputAnalyzer out) {
199 System.out.println("Checking for: " + name);
200 return out;
201 }
202 }
203
204 class ResolvedConstantsApp implements Runnable {
205 public static void main(String args[]) {
206 System.out.println("Hello ResolvedConstantsApp");
207 ResolvedConstantsApp app = new ResolvedConstantsApp();
208 ResolvedConstantsApp.staticCall();
209 app.privateInstanceCall();
210 app.publicInstanceCall();
211 Object a = app;
212 ((Runnable)a).run();
213
214 ResolvedConstantsFoo foo = new ResolvedConstantsFoo();
215 ResolvedConstantsBar bar = new ResolvedConstantsBar();
216 bar.a ++;
217 bar.b ++;
218 bar.doit();
219
220 testLambda();
221 StringConcatTest.test();
222 StringConcatTestOld.main(null);
223 }
224 private static void staticCall() {}
225 private void privateInstanceCall() {}
226 public void publicInstanceCall() {}
227
228 public void run() {}
229
230 static void testLambda() {
231 // The functional type used in the Lambda is an excluded class
232 OldProvider op = () -> {
233 return null;
234 };
235
236 // A captured value is an instance of an excluded Class
237 OldClass c = new OldClass();
238 Runnable r = () -> {
239 System.out.println("Test 1 " + c);
240 };
241 r.run();
242
243 // The functional interface accepts an argument that's an excluded class
244 MyInterface i = (o) -> {
245 System.out.println("Test 2 " + o);
246 };
247 i.dispatch(c);
248
249 // Method reference to old class
250 OldConsumer oldConsumer = new OldConsumer();
251 Consumer<String> wrapper = oldConsumer::consumeString;
252 wrapper.accept("Hello");
253
254 // Lambda of interfaces that have <clinit> are not archived.
255 InterfaceWithClinit i2 = () -> {
256 System.out.println("Test 3");
257 };
258 i2.dispatch();
259
260 // These two classes have almost identical source code, but
261 // only NormalClass should have its lambdas pre-resolved.
262 // SubOfOldClass is "old" -- it should be excluded from the AOT cache,
263 // so none of its lambda proxies should be cached
264 NormalClass.testLambda(); // Lambda proxy should be cached
265 SubOfOldClass.testLambda(); // Lambda proxy shouldn't be cached
266 }
267 }
268
269 class StringConcatTest {
270 static void test() {
271 System.out.println("StringConcatTest <concat> " + new StringConcatTest()); // concat should be aot-resolved
272 }
273 }
274
275 /* see StringConcatTestOld.jasm
276
277 class StringConcatTestOld {
278 public static void main(String args[]) {
279 // concat should be aot-resolved => the MethodType refers to an old class
280 System.out.println("StringConcatTestOld <concat> " + new OldConsumer());
281 }
282 }
283 */
284
285 class NormalClass {
286 static void testLambda() {
287 Runnable r = () -> {
288 System.out.println("NormalClass testLambda");
289 };
290 r.run();
291 }
292 }
293
294 class SubOfOldClass extends OldClass {
295 static void testLambda() {
296 Runnable r = () -> {
297 System.out.println("SubOfOldClass testLambda");
298 };
299 r.run();
300 }
301 }
302
303 interface MyInterface {
304 void dispatch(OldClass c);
305 }
306
307 interface InterfaceWithClinit {
308 static final long X = System.currentTimeMillis();
309 void dispatch();
310 default long dummy() { return X; }
311 }
312
313 class ResolvedConstantsFoo {
314 int a = 1;
315 void doit() {
316 }
317
318 void doBar(ResolvedConstantsBar bar) {
319 bar.a ++;
320 bar.b ++;
321 }
322 }
323
324 class ResolvedConstantsBar extends ResolvedConstantsFoo {
325 int b = 2;
326 void doit() {
327 System.out.println("Hello ResolvedConstantsBar and " + ResolvedConstantsFoo.class.getName());
328 System.out.println("a = " + a);
329 System.out.println("a = " + ((ResolvedConstantsFoo)this).a);
330 System.out.println("b = " + b);
331
332 doBar(this);
333
334 ((ResolvedConstantsFoo)this).doBar(this);
335 }
336 }