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24 
25 /*
26  * @test
27  * @summary DumpLoadedClassList should exclude generated classes, classes in bootclasspath/a and
28  *          --patch-module.
29  * @requires vm.cds
30  * @library /test/lib
31  * @modules java.base/jdk.internal.misc
32  *          jdk.jartool/sun.tools.jar
33  * @compile test-classes/ArrayListTest.java
34  * @run main DumpClassList
35  */
36 
37 import jdk.test.lib.compiler.InMemoryJavaCompiler;
38 import jdk.test.lib.process.OutputAnalyzer;
39 import jdk.test.lib.process.ProcessTools;
40 
41 public class DumpClassList {
main(String[] args)42     public static void main(String[] args) throws Exception {
43         // build The app
44         String[] appClass = new String[] {"ArrayListTest"};
45         String classList = "app.list";
46 
47         JarBuilder.build("app", appClass[0]);
48         String appJar = TestCommon.getTestJar("app.jar");
49 
50         // build patch-module
51         String source = "package java.lang; "                       +
52                         "public class NewClass { "                  +
53                         "    static { "                             +
54                         "        System.out.println(\"NewClass\"); "+
55                         "    } "                                    +
56                         "}";
57 
58         ClassFileInstaller.writeClassToDisk("java/lang/NewClass",
59              InMemoryJavaCompiler.compile("java.lang.NewClass", source, "--patch-module=java.base"),
60              System.getProperty("test.classes"));
61 
62         String patchJar = JarBuilder.build("javabase", "java/lang/NewClass");
63 
64         // build bootclasspath/a
65         String source2 = "package boot.append; "                 +
66                         "public class Foo { "                    +
67                         "    static { "                          +
68                         "        System.out.println(\"Foo\"); "  +
69                         "    } "                                 +
70                         "}";
71 
72         ClassFileInstaller.writeClassToDisk("boot/append/Foo",
73              InMemoryJavaCompiler.compile("boot.append.Foo", source2),
74              System.getProperty("test.classes"));
75 
76         String appendJar = JarBuilder.build("bootappend", "boot/append/Foo");
77 
78         // dump class list
79         ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(
80             true,
81             "-XX:DumpLoadedClassList=" + classList,
82             "--patch-module=java.base=" + patchJar,
83             "-Xbootclasspath/a:" + appendJar,
84             "-cp",
85             appJar,
86             appClass[0]);
87         OutputAnalyzer output = TestCommon.executeAndLog(pb, "dumpClassList");
88         TestCommon.checkExecReturn(output, 0, true,
89                                    "hello world",
90                                    "skip writing class java/lang/NewClass") // skip classes outside of jrt image
91             .shouldNotContain("skip writing class boot/append/Foo");        // but classes on -Xbootclasspath/a should not be skipped
92 
93         output = TestCommon.createArchive(appJar, appClass,
94                                           "-Xbootclasspath/a:" + appendJar,
95                                           "-Xlog:class+load",
96                                           "-XX:SharedClassListFile=" + classList);
97         TestCommon.checkDump(output)
98             .shouldNotContain("Preload Warning: Cannot find java/lang/invoke/LambdaForm")
99             .shouldNotContain("Preload Warning: Cannot find boot/append/Foo")
100             .shouldContain("[info][class,load] boot.append.Foo");
101     }
102 }
103