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24 
25 /*
26  * @test
27  * @summary Redefine shared class. GC should not cause crash with cached resolved_references.
28  * @library /test/lib /test/hotspot/jtreg/runtime/cds/appcds /test/hotspot/jtreg/runtime/cds/appcds/test-classes /test/hotspot/jtreg/runtime/cds/appcds/jvmti
29  * @requires vm.cds.archived.java.heap
30  * @build sun.hotspot.WhiteBox
31  *        RedefineClassApp
32  *        InstrumentationClassFileTransformer
33  *        InstrumentationRegisterClassFileTransformer
34  * @run driver RedefineClassTest
35  */
36 
37 import com.sun.tools.attach.VirtualMachine;
38 import com.sun.tools.attach.VirtualMachineDescriptor;
39 import java.io.File;
40 import java.util.List;
41 import jdk.test.lib.Asserts;
42 import jdk.test.lib.cds.CDSOptions;
43 import jdk.test.lib.process.OutputAnalyzer;
44 import jdk.test.lib.process.ProcessTools;
45 
46 public class RedefineClassTest {
47     public static String bootClasses[] = {
48         "RedefineClassApp$Intf",
49         "RedefineClassApp$Bar",
50         "sun.hotspot.WhiteBox",
51     };
52     public static String appClasses[] = {
53         "RedefineClassApp",
54         "RedefineClassApp$Foo",
55     };
56     public static String sharedClasses[] = TestCommon.concat(bootClasses, appClasses);
57 
58     public static String agentClasses[] = {
59         "InstrumentationClassFileTransformer",
60         "InstrumentationRegisterClassFileTransformer",
61         "Util",
62     };
63 
main(String[] args)64     public static void main(String[] args) throws Throwable {
65         runTest();
66     }
67 
runTest()68     public static void runTest() throws Throwable {
69         String bootJar =
70             ClassFileInstaller.writeJar("RedefineClassBoot.jar", bootClasses);
71         String appJar =
72             ClassFileInstaller.writeJar("RedefineClassApp.jar", appClasses);
73         String agentJar =
74             ClassFileInstaller.writeJar("InstrumentationAgent.jar",
75                                         ClassFileInstaller.Manifest.fromSourceFile("InstrumentationAgent.mf"),
76                                         agentClasses);
77 
78         String bootCP = "-Xbootclasspath/a:" + bootJar;
79 
80         String agentCmdArg;
81         agentCmdArg = "-javaagent:" + agentJar;
82 
83         TestCommon.testDump(appJar, sharedClasses, bootCP, "-Xlog:gc+region=trace");
84 
85         OutputAnalyzer out = TestCommon.execAuto("-cp", appJar,
86                 bootCP,
87                 "-XX:+UnlockDiagnosticVMOptions",
88                 "-XX:+WhiteBoxAPI",
89                 "-Xlog:cds=info",
90                 agentCmdArg,
91                "RedefineClassApp", bootJar, appJar);
92         out.reportDiagnosticSummary();
93 
94         CDSOptions opts = (new CDSOptions()).setXShareMode("auto");
95         TestCommon.checkExec(out, opts);
96     }
97 }
98 
99