1 /*
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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.
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11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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13 * accompanied this code).
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23 */
24
25 /*
26 * @test
27 * @summary Test options that are incompatible with use of shared strings
28 * Also test mismatch in oops encoding between dump time and run time
29 * @requires vm.cds.archived.java.heap
30 * @requires (vm.gc=="null")
31 * @library /test/lib /test/hotspot/jtreg/runtime/appcds
32 * @modules java.base/jdk.internal.misc
33 * @modules java.management
34 * jdk.jartool/sun.tools.jar
35 * @build sun.hotspot.WhiteBox
36 * @run driver ClassFileInstaller sun.hotspot.WhiteBox sun.hotspot.WhiteBox$WhiteBoxPermission
37 * @build HelloString
38 * @run main/othervm -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI -Xbootclasspath/a:. IncompatibleOptions
39 */
40
41 import jdk.test.lib.Asserts;
42 import jdk.test.lib.process.OutputAnalyzer;
43
44 import sun.hotspot.code.Compiler;
45
46 public class IncompatibleOptions {
47 static final String COOPS_DUMP_WARNING =
48 "Cannot dump shared archive when UseCompressedOops or UseCompressedClassPointers is off";
49 static final String COOPS_EXEC_WARNING =
50 "UseCompressedOops and UseCompressedClassPointers must be on for UseSharedSpaces";
51 static final String GC_WARNING =
52 "Archived java heap is not supported";
53 static final String OBJ_ALIGNMENT_MISMATCH =
54 "The shared archive file's ObjectAlignmentInBytes of .* does not equal the current ObjectAlignmentInBytes of";
55 static final String COMPACT_STRING_MISMATCH =
56 "The shared archive file's CompactStrings setting .* does not equal the current CompactStrings setting";
57
58 static String appJar;
59
60 public static void main(String[] args) throws Exception {
61 appJar = JarBuilder.build("IncompatibleOptions", "HelloString");
62
63 // Uncompressed OOPs
64 testDump(1, "-XX:+UseG1GC", "-XX:-UseCompressedOops", COOPS_DUMP_WARNING, true);
65 testDump(1, "-XX:+UnlockExperimentalVMOptions", "-XX:+UseZGC", COOPS_DUMP_WARNING, true);
66
67 // incompatible GCs
68 testDump(2, "-XX:+UseParallelGC", "", GC_WARNING, false);
69 testDump(3, "-XX:+UseSerialGC", "", GC_WARNING, false);
70 if (!Compiler.isGraalEnabled()) { // Graal does not support CMS
71 testDump(4, "-XX:+UseConcMarkSweepGC", "", GC_WARNING, false);
72 }
73
74 // ======= archive with compressed oops, run w/o
75 testDump(5, "-XX:+UseG1GC", "-XX:+UseCompressedOops", null, false);
76 testExec(5, "-XX:+UseG1GC", "-XX:-UseCompressedOops",
77 COOPS_EXEC_WARNING, true);
78
79 // NOTE: No warning is displayed, by design
80 // Still run, to ensure no crash or exception
81 testExec(6, "-XX:+UseParallelGC", "", "", false);
82 testExec(7, "-XX:+UseSerialGC", "", "", false);
83 if (!Compiler.isGraalEnabled()) { // Graal does not support CMS
84 testExec(8, "-XX:+UseConcMarkSweepGC", "", "", false);
85 }
86
87 // Test various oops encodings, by varying ObjectAlignmentInBytes and heap sizes
88 testDump(9, "-XX:+UseG1GC", "-XX:ObjectAlignmentInBytes=8", null, false);
89 testExec(9, "-XX:+UseG1GC", "-XX:ObjectAlignmentInBytes=16",
90 OBJ_ALIGNMENT_MISMATCH, true);
91
92 // See JDK-8081416 - Oops encoding mismatch with shared strings
93 // produces unclear or incorrect warning
94 // Correct the test case once the above is fixed
95 // @ignore JDK-8081416 - for tracking purposes
96 // for now, run test as is until the proper behavior is determined
97 testDump(10, "-XX:+UseG1GC", "-Xmx1g", null, false);
98 testExec(10, "-XX:+UseG1GC", "-Xmx32g", null, true);
99
100 // CompactStrings must match between dump time and run time
101 testDump(11, "-XX:+UseG1GC", "-XX:-CompactStrings", null, false);
102 testExec(11, "-XX:+UseG1GC", "-XX:+CompactStrings",
103 COMPACT_STRING_MISMATCH, true);
104 testDump(12, "-XX:+UseG1GC", "-XX:+CompactStrings", null, false);
105 testExec(12, "-XX:+UseG1GC", "-XX:-CompactStrings",
106 COMPACT_STRING_MISMATCH, true);
107 }
108
109 static void testDump(int testCaseNr, String collectorOption, String extraOption,
110 String expectedWarning, boolean expectedToFail) throws Exception {
111
112 System.out.println("Testcase: " + testCaseNr);
113 OutputAnalyzer output = TestCommon.dump(appJar, TestCommon.list("Hello"),
114 "-XX:+UseCompressedOops",
115 collectorOption,
116 "-XX:SharedArchiveConfigFile=" + TestCommon.getSourceFile("SharedStringsBasic.txt"),
117 extraOption);
118
119 if (expectedWarning != null)
120 output.shouldContain(expectedWarning);
121
122 if (expectedToFail) {
123 Asserts.assertNE(output.getExitValue(), 0,
124 "JVM is expected to fail, but did not");
125 }
126 }
127
128 static void testExec(int testCaseNr, String collectorOption, String extraOption,
129 String expectedWarning, boolean expectedToFail) throws Exception {
130
131 OutputAnalyzer output;
132 System.out.println("Testcase: " + testCaseNr);
133
134 // needed, otherwise system considers empty extra option as a
135 // main class param, and fails with "Could not find or load main class"
136 if (!extraOption.isEmpty()) {
137 output = TestCommon.exec(appJar, "-XX:+UseCompressedOops",
138 collectorOption, extraOption, "HelloString");
139 } else {
140 output = TestCommon.exec(appJar, "-XX:+UseCompressedOops",
141 collectorOption, "HelloString");
142 }
143
144 if (expectedWarning != null)
145 output.shouldMatch(expectedWarning);
146
147 if (expectedToFail)
148 Asserts.assertNE(output.getExitValue(), 0);
149 else
150 SharedStringsUtils.checkExec(output);
151 }
152 }