1 /*
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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23 */
24
25 /*
26 * @test
27 * @summary Dump time resolutiom of constant pool entries.
28 * @requires vm.cds
29 * @requires vm.compMode != "Xcomp"
30 * @library /test/lib
31 * @build ResolvedConstants
32 * @run driver jdk.test.lib.helpers.ClassFileInstaller -jar app.jar ResolvedConstantsApp ResolvedConstantsFoo ResolvedConstantsBar
33 * @run driver ResolvedConstants
34 */
35
36 import jdk.test.lib.cds.CDSOptions;
37 import jdk.test.lib.cds.CDSTestUtils;
38 import jdk.test.lib.helpers.ClassFileInstaller;
39
40 public class ResolvedConstants {
41 static final String classList = "ResolvedConstants.classlist";
42 static final String appJar = ClassFileInstaller.getJarPath("app.jar");
43 static final String mainClass = ResolvedConstantsApp.class.getName();
44
45 public static void main(String[] args) throws Exception {
46 // dump class list
47 CDSTestUtils.dumpClassList(classList, "-cp", appJar, mainClass)
48 .assertNormalExit(output -> {
49 output.shouldContain("Hello ResolvedConstantsApp");
50 });
51
52 CDSOptions opts = (new CDSOptions())
53 .addPrefix("-XX:ExtraSharedClassListFile=" + classList,
54 "-cp", appJar,
55 "-Xlog:cds+resolve=trace");
56 CDSTestUtils.createArchiveAndCheck(opts)
57 // Class References ---
58
59 // Always resolve reference when a class references itself
60 .shouldMatch("cds,resolve.*archived klass.* ResolvedConstantsApp app => ResolvedConstantsApp app")
61
62 // Always resolve reference when a class references a super class
63 .shouldMatch("cds,resolve.*archived klass.* ResolvedConstantsApp app => java/lang/Object boot")
64 .shouldMatch("cds,resolve.*archived klass.* ResolvedConstantsBar app => ResolvedConstantsFoo app")
65
66 // Always resolve reference when a class references a super interface
67 .shouldMatch("cds,resolve.*archived klass.* ResolvedConstantsApp app => java/lang/Runnable boot")
68
69 // java/lang/System is in the root loader but ResolvedConstantsApp is loaded by the app loader.
70 // Even though System is in the vmClasses list, when ResolvedConstantsApp looks up
71 // "java/lang/System" in its ConstantPool, the app loader may not have resolved the System
72 // class yet (i.e., there's no initiaited class entry for System in the app loader's dictionary)
73 .shouldMatch("cds,resolve.*reverted klass.* ResolvedConstantsApp .*java/lang/System")
74
75 // Field References ---
76
77 // Always resolve references to fields in the current class or super class(es)
78 .shouldMatch("cds,resolve.*archived field.* ResolvedConstantsBar => ResolvedConstantsBar.b:I")
79 .shouldMatch("cds,resolve.*archived field.* ResolvedConstantsBar => ResolvedConstantsBar.a:I")
80 .shouldMatch("cds,resolve.*archived field.* ResolvedConstantsBar => ResolvedConstantsFoo.a:I")
81
82 // Do not resolve field references to child classes
83 .shouldMatch("cds,resolve.*archived field.* ResolvedConstantsFoo => ResolvedConstantsFoo.a:I")
84 .shouldMatch("cds,resolve.*reverted field.* ResolvedConstantsFoo ResolvedConstantsBar.a:I")
85 .shouldMatch("cds,resolve.*reverted field.* ResolvedConstantsFoo ResolvedConstantsBar.b:I")
86
87 // Do not resolve field references to unrelated classes
88 .shouldMatch("cds,resolve.*reverted field.* ResolvedConstantsApp ResolvedConstantsBar.a:I")
89 .shouldMatch("cds,resolve.*reverted field.* ResolvedConstantsApp ResolvedConstantsBar.b:I")
90
91 // Method References ---
92
93 // Should resolve references to own constructor
94 .shouldMatch("cds,resolve.*archived method .* ResolvedConstantsApp ResolvedConstantsApp.<init>:")
95 // Should resolve references to super constructor
96 .shouldMatch("cds,resolve.*archived method .* ResolvedConstantsApp java/lang/Object.<init>:")
97
98 // Should resolve interface methods in VM classes
99 .shouldMatch("cds,resolve.*archived interface method .* ResolvedConstantsApp java/lang/Runnable.run:")
100
101 // Should resolve references to own non-static method (private or public)
102 .shouldMatch("archived method.*: ResolvedConstantsBar ResolvedConstantsBar.doBar:")
103 .shouldMatch("archived method.*: ResolvedConstantsApp ResolvedConstantsApp.privateInstanceCall:")
104 .shouldMatch("archived method.*: ResolvedConstantsApp ResolvedConstantsApp.publicInstanceCall:")
105
106 // Should not resolve references to static method
107 .shouldNotMatch(" archived method CP entry.*: ResolvedConstantsApp ResolvedConstantsApp.staticCall:")
108
109 // Should resolve references to method in super type
110 .shouldMatch(" archived method CP entry.*: ResolvedConstantsBar ResolvedConstantsFoo.doBar:")
111
112 // App class cannot resolve references to methods in boot classes:
113 // When the app class loader tries to resolve a class X that's normally loaded by
114 // the boot loader, it's possible for the app class loader to get a different copy of
115 // X (by using MethodHandles.Lookup.defineClass(), etc). Therefore, let's be on
116 // the side of safety and revert all such references.
117 //
118 // This will be addressed in JDK-8315737.
119 .shouldMatch("reverted method.*: ResolvedConstantsApp java/io/PrintStream.println:")
120 .shouldMatch("reverted method.*: ResolvedConstantsBar java/lang/Class.getName:")
121
122 // Should not resolve methods in unrelated classes.
123 .shouldMatch("reverted method.*: ResolvedConstantsApp ResolvedConstantsBar.doit:")
124
125 // End ---
126 ;
127 }
128 }
129
130 class ResolvedConstantsApp implements Runnable {
131 public static void main(String args[]) {
132 System.out.println("Hello ResolvedConstantsApp");
133 ResolvedConstantsApp app = new ResolvedConstantsApp();
134 ResolvedConstantsApp.staticCall();
135 app.privateInstanceCall();
136 app.publicInstanceCall();
137 Object a = app;
138 ((Runnable)a).run();
139
140 ResolvedConstantsFoo foo = new ResolvedConstantsFoo();
141 ResolvedConstantsBar bar = new ResolvedConstantsBar();
142 bar.a ++;
143 bar.b ++;
144 bar.doit();
145 }
146 private static void staticCall() {}
147 private void privateInstanceCall() {}
148 public void publicInstanceCall() {}
149
150 public void run() {}
151 }
152
153 class ResolvedConstantsFoo {
154 int a = 1;
155 void doit() {
156 }
157
158 void doBar(ResolvedConstantsBar bar) {
159 bar.a ++;
160 bar.b ++;
161 }
162 }
163
164 class ResolvedConstantsBar extends ResolvedConstantsFoo {
165 int b = 2;
166 void doit() {
167 System.out.println("Hello ResolvedConstantsBar and " + ResolvedConstantsFoo.class.getName());
168 System.out.println("a = " + a);
169 System.out.println("a = " + ((ResolvedConstantsFoo)this).a);
170 System.out.println("b = " + b);
171
172 doBar(this);
173
174 ((ResolvedConstantsFoo)this).doBar(this);
175 }
176 }