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| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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| */ |
| |
| /* |
| * @test |
| * @bug 8159262 |
| * @summary Test differing scenarios where a module's readability list and a package's exportability list should be walked |
| * @modules java.base/jdk.internal.misc |
| * @library /test/lib |
| * @compile ../AccessCheck/ModuleLibrary.java |
| * @compile ModuleSameCLMain.java |
| * @compile ModuleNonBuiltinCLMain.java |
| * @compile CustomSystemClassLoader.java |
| * @run main/othervm ModuleStress |
| */ |
| |
| import jdk.test.lib.process.ProcessTools; |
| import jdk.test.lib.process.OutputAnalyzer; |
| import jdk.test.lib.compiler.InMemoryJavaCompiler; |
| |
| public class ModuleStress { |
| |
| public static void main(String[] args) throws Exception { |
| |
| // Test #1: java -version |
| // All modules' readability lists and packages' exportability |
| // lists should contain only modules defined to the 3 builtin |
| // loaders (boot, application, platform). Thus there is |
| // not a need to walk those lists at a GC safepoint since |
| // those loaders never die. |
| ProcessBuilder pb = ProcessTools.createJavaProcessBuilder( |
| "-Xbootclasspath/a:.", |
| "-Xlog:module=trace", |
| "-version"); |
| |
| OutputAnalyzer oa = new OutputAnalyzer(pb.start()); |
| oa.shouldNotContain("must be walked") |
| .shouldNotContain("being walked") |
| .shouldHaveExitValue(0); |
| |
| // Next 2 tests involve the use of class p1.c1 and p2.c2 |
| String source1 = "package p1;" + |
| "import p2.c2;" + |
| "public class c1 {" + |
| " public c1() {" + |
| " p2.c2 c2_obj = new p2.c2();" + |
| " c2_obj.method2();" + |
| " }" + |
| "}"; |
| |
| String source2 = "package p2;" + |
| "public class c2 {" + |
| " public void method2() { }" + |
| "}"; |
| |
| ClassFileInstaller.writeClassToDisk("p2/c2", |
| InMemoryJavaCompiler.compile("p2.c2", source2), System.getProperty("test.classes")); |
| |
| ClassFileInstaller.writeClassToDisk("p1/c1", |
| InMemoryJavaCompiler.compile("p1.c1", source1), System.getProperty("test.classes")); |
| |
| // Test #2: Load two modules defined to the same customer class loader. |
| // m1x's module readability list and package p2's exportability should |
| // not be walked at a GC safepoint since both modules are defined to |
| // the same loader and thus have the exact same life cycle. |
| pb = ProcessTools.createJavaProcessBuilder( |
| "-Xbootclasspath/a:.", |
| "-Xlog:module=trace", |
| "ModuleSameCLMain"); |
| |
| oa = new OutputAnalyzer(pb.start()); |
| oa.shouldNotContain("must be walked") |
| .shouldNotContain("being walked") |
| .shouldHaveExitValue(0); |
| |
| // Test #3: Load two modules in differing custom class loaders. |
| // m1x's module readability list and package p2's exportability list must |
| // be walked at a GC safepoint since both modules are defined to non-builtin |
| // class loaders which could die and thus be unloaded. |
| pb = ProcessTools.createJavaProcessBuilder( |
| "-Xbootclasspath/a:.", |
| "-Xlog:module=trace", |
| "ModuleNonBuiltinCLMain"); |
| |
| oa = new OutputAnalyzer(pb.start()); |
| oa.shouldContain("module m1x reads list must be walked") |
| .shouldContain("package p2 defined in module m2x, exports list must be walked") |
| .shouldNotContain("module m2x reads list must be walked") |
| .shouldHaveExitValue(0); |
| |
| // Test #4: Load two modules in differing custom class loaders, |
| // of which one has been designated as the custom system class loader |
| // via -Djava.system.class.loader=CustomSystemClassLoader. Since |
| // m3x is defined to the system class loader, m2x's module readability |
| // list does not have to be walked at a GC safepoint, but package p2's |
| // exportability list does. |
| pb = ProcessTools.createJavaProcessBuilder( |
| "-Djava.system.class.loader=CustomSystemClassLoader", |
| "-Xbootclasspath/a:.", |
| "-Xlog:module=trace", |
| "ModuleNonBuiltinCLMain"); |
| |
| oa = new OutputAnalyzer(pb.start()); |
| oa.shouldContain("package p2 defined in module m2x, exports list must be walked") |
| .shouldNotContain("module m2x reads list must be walked") |
| .shouldHaveExitValue(0); |
| |
| } |
| } |