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
12 * version 2 for more details (a copy is included in the LICENSE file that
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 jdk.jartool/sun.tools.jar
33 * @build sun.hotspot.WhiteBox
34 * @run driver ClassFileInstaller sun.hotspot.WhiteBox sun.hotspot.WhiteBox$WhiteBoxPermission
35 * @build HelloString
36 * @run main/othervm -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI -Xbootclasspath/a:. IncompatibleOptions
37 */
38
39 import jdk.test.lib.Asserts;
40 import jdk.test.lib.Platform;
41 import jdk.test.lib.process.OutputAnalyzer;
42
43 import sun.hotspot.code.Compiler;
44 import sun.hotspot.gc.GC;
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 static String[] globalVmOptions;
60
61 public static void main(String[] args) throws Exception {
62 globalVmOptions = args; // specified by "@run main" in IncompatibleOptions_*.java
63 appJar = JarBuilder.build("IncompatibleOptions", "HelloString");
64
65 // Uncompressed OOPs
66 testDump(1, "-XX:+UseG1GC", "-XX:-UseCompressedOops", COOPS_DUMP_WARNING, true);
67 if (GC.Z.isSupported()) { // ZGC is included in build.
68 testDump(1, "-XX:+UnlockExperimentalVMOptions", "-XX:+UseZGC", COOPS_DUMP_WARNING, true);
69 }
70
71 // incompatible GCs
72 testDump(2, "-XX:+UseParallelGC", "", GC_WARNING, false);
73 testDump(3, "-XX:+UseSerialGC", "", GC_WARNING, false);
74 if (!Compiler.isGraalEnabled()) { // Graal does not support CMS
75 testDump(4, "-XX:+UseConcMarkSweepGC", "", GC_WARNING, false);
76 }
77
78 // ======= archive with compressed oops, run w/o
79 testDump(5, "-XX:+UseG1GC", "-XX:+UseCompressedOops", null, false);
80 testExec(5, "-XX:+UseG1GC", "-XX:-UseCompressedOops",
81 COOPS_EXEC_WARNING, true);
82
83 // NOTE: No warning is displayed, by design
84 // Still run, to ensure no crash or exception
85 testExec(6, "-XX:+UseParallelGC", "", "", false);
86 testExec(7, "-XX:+UseSerialGC", "", "", false);
87 if (!Compiler.isGraalEnabled()) { // Graal does not support CMS
88 testExec(8, "-XX:+UseConcMarkSweepGC", "", "", false);
89 }
90
91 // Test various oops encodings, by varying ObjectAlignmentInBytes and heap sizes
92 testDump(9, "-XX:+UseG1GC", "-XX:ObjectAlignmentInBytes=8", null, false);
93 testExec(9, "-XX:+UseG1GC", "-XX:ObjectAlignmentInBytes=16",
94 OBJ_ALIGNMENT_MISMATCH, true);
95
96 // See JDK-8081416 - Oops encoding mismatch with shared strings
97 // produces unclear or incorrect warning
98 // Correct the test case once the above is fixed
99 // @ignore JDK-8081416 - for tracking purposes
100 // for now, run test as is until the proper behavior is determined
101 testDump(10, "-XX:+UseG1GC", "-Xmx1g", null, false);
102 testExec(10, "-XX:+UseG1GC", "-Xmx32g", null, true);
103
104 // CompactStrings must match between dump time and run time
105 testDump(11, "-XX:+UseG1GC", "-XX:-CompactStrings", null, false);
106 testExec(11, "-XX:+UseG1GC", "-XX:+CompactStrings",
107 COMPACT_STRING_MISMATCH, true);
108 testDump(12, "-XX:+UseG1GC", "-XX:+CompactStrings", null, false);
109 testExec(12, "-XX:+UseG1GC", "-XX:-CompactStrings",
110 COMPACT_STRING_MISMATCH, true);
111 }
112
113 static void testDump(int testCaseNr, String collectorOption, String extraOption,
114 String expectedWarning, boolean expectedToFail) throws Exception {
115
116 System.out.println("Testcase: " + testCaseNr);
117 OutputAnalyzer output = TestCommon.dump(appJar, TestCommon.list("Hello"),
118 TestCommon.concat(globalVmOptions,
119 "-XX:+UseCompressedOops",
120 collectorOption,
121 "-XX:SharedArchiveConfigFile=" + TestCommon.getSourceFile("SharedStringsBasic.txt"),
122 "-Xlog:cds,cds+hashtables",
123 extraOption));
124
125 if (expectedWarning != null) {
126 output.shouldContain(expectedWarning);
127 }
128
129 if (expectedToFail) {
130 Asserts.assertNE(output.getExitValue(), 0,
131 "JVM is expected to fail, but did not");
132 }
133 }
134
135 static void testExec(int testCaseNr, String collectorOption, String extraOption,
136 String expectedWarning, boolean expectedToFail) throws Exception {
137
138 OutputAnalyzer output;
139 System.out.println("Testcase: " + testCaseNr);
140
141 // needed, otherwise system considers empty extra option as a
142 // main class param, and fails with "Could not find or load main class"
143 if (!extraOption.isEmpty()) {
144 output = TestCommon.exec(appJar,
145 TestCommon.concat(globalVmOptions,
146 "-XX:+UseCompressedOops",
147 collectorOption, "-Xlog:cds", extraOption, "HelloString"));
148 } else {
149 output = TestCommon.exec(appJar,
150 TestCommon.concat(globalVmOptions,
151 "-XX:+UseCompressedOops",
152 collectorOption, "-Xlog:cds", "HelloString"));
153 }
154
155 if (expectedWarning != null) {
156 output.shouldMatch(expectedWarning);
157 }
158
159 if (expectedToFail) {
160 Asserts.assertNE(output.getExitValue(), 0);
161 } else {
162 SharedStringsUtils.checkExec(output);
163 }
164 }
165 }