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24 
25 /*
26  * @test
27  * @summary Test dumping with limited metaspace with loading of JVMCI related classes.
28  *          VM should not crash but CDS dump will abort upon failure in allocating metaspace.
29  * @requires vm.cds & vm.graal.enabled & vm.compMode == "Xmixed"
30  * @library /test/lib
31  * @modules java.base/jdk.internal.misc
32  *          java.management
33  *          jdk.jartool/sun.tools.jar
34  * @build UseAppCDS_Test
35  * @run driver ClassFileInstaller -jar test.jar UseAppCDS_Test
36  * @run main/othervm -XX:+UnlockExperimentalVMOptions -XX:+EnableJVMCI
37  *      -XX:+TieredCompilation -XX:+UseJVMCICompiler -Djvmci.Compiler=graal
38  *      GraalWithLimitedMetaspace
39  */
40 
41 import jdk.test.lib.cds.CDSTestUtils;
42 import jdk.test.lib.process.OutputAnalyzer;
43 import jdk.test.lib.process.ProcessTools;
44 
45 import java.util.ArrayList;
46 import java.util.List;
47 import java.io.*;
48 
49 public class GraalWithLimitedMetaspace {
50 
51     // Class UseAppCDS_Test is loaded by the App loader
52 
53     static final String TEST_OUT = "UseAppCDS_Test.main--executed";
54 
55     private static final String TESTJAR = "./test.jar";
56     private static final String TESTNAME = "UseAppCDS_Test";
57     private static final String TESTCLASS = TESTNAME + ".class";
58 
59     private static final String CLASSLIST_FILE = "./GraalWithLimitedMetaspace.classlist";
60     private static final String ARCHIVE_FILE = "./GraalWithLimitedMetaspace.jsa";
61     private static final String BOOTCLASS = "java.lang.Class";
62 
main(String[] args)63     public static void main(String[] args) throws Exception {
64 
65         // dump loaded classes into a classlist file
66         dumpLoadedClasses(new String[] { BOOTCLASS, TESTNAME });
67 
68 
69         // create an archive using the classlist
70         dumpArchive();
71 
72     }
73 
toClassNames(String filename)74     public static List<String> toClassNames(String filename) throws IOException {
75         ArrayList<String> classes = new ArrayList<>();
76         try (BufferedReader br = new BufferedReader(new InputStreamReader(new FileInputStream(filename)))) {
77             for (; ; ) {
78                 String line = br.readLine();
79                 if (line == null) {
80                     break;
81                 }
82                 classes.add(line.replaceAll("/", "."));
83             }
84         }
85         return classes;
86     }
87 
dumpLoadedClasses(String[] expectedClasses)88     static void dumpLoadedClasses(String[] expectedClasses) throws Exception {
89         ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(true,
90           TestCommon.makeCommandLineForAppCDS(
91             "-XX:DumpLoadedClassList=" + CLASSLIST_FILE,
92             // trigger JVMCI runtime init so that JVMCI classes will be
93             // included in the classlist
94             "-XX:+UnlockExperimentalVMOptions",
95             "-XX:+EnableJVMCI",
96             "-XX:+EagerJVMCI",
97             "-cp",
98             TESTJAR,
99             TESTNAME,
100             TEST_OUT));
101 
102         OutputAnalyzer output = TestCommon.executeAndLog(pb, "dump-loaded-classes")
103             .shouldHaveExitValue(0)
104             .shouldContain(TEST_OUT);
105 
106         List<String> dumpedClasses = toClassNames(CLASSLIST_FILE);
107 
108         for (String clazz : expectedClasses) {
109             if (!dumpedClasses.contains(clazz)) {
110                 throw new RuntimeException(clazz + " missing in " +
111                                            CLASSLIST_FILE);
112             }
113         }
114     }
115 
dumpArchive()116     static void dumpArchive() throws Exception {
117         ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(true,
118           TestCommon.makeCommandLineForAppCDS(
119             "-cp",
120             TESTJAR,
121             "-XX:SharedClassListFile=" + CLASSLIST_FILE,
122             "-XX:SharedArchiveFile=" + ARCHIVE_FILE,
123             "-Xlog:cds",
124             "-Xshare:dump",
125             "-XX:MetaspaceSize=12M",
126             "-XX:MaxMetaspaceSize=12M"));
127 
128         OutputAnalyzer output = TestCommon.executeAndLog(pb, "dump-archive");
129         int exitValue = output.getExitValue();
130         if (exitValue == 1) {
131             output.shouldContain("Failed allocating metaspace object type");
132         } else if (exitValue == 0) {
133             output.shouldContain("Loading classes to share");
134         } else {
135             throw new RuntimeException("Unexpected exit value " + exitValue);
136         }
137     }
138 }
139