hotspot/test/runtime/modules/JVMAddModuleExportToAllUnnamed.java
author rprotacio
Mon, 24 Apr 2017 12:08:28 -0400
changeset 46404 ae62ba99a1a7
parent 44520 0553e129e0ec
permissions -rw-r--r--
8165896: Use "open" flag from JVM_DefineModule to export all module packages Summary: Implemented VM side of open modules, which export all their packages unqualifiedly. Automatic modules and unnamed modules are treated internally as open modules. Reviewed-by: alanb, hseigel, lfoltan

/*
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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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/*
 * @test
 * @modules java.base/jdk.internal.misc
 * @library /test/lib ..
 * @compile p2/c2.java
 * @compile p1/c1.java
 * @build sun.hotspot.WhiteBox
 * @run main ClassFileInstaller sun.hotspot.WhiteBox
 *                              sun.hotspot.WhiteBox$WhiteBoxPermission
 * @compile/module=java.base java/lang/ModuleHelper.java
 * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI JVMAddModuleExportToAllUnnamed
 */

import static jdk.test.lib.Asserts.*;

public class JVMAddModuleExportToAllUnnamed {

    // Check that a class in a package in module_one cannot access a class
    // that is in the unnamed module if the accessing package is strict.
    public static void main(String args[]) throws Throwable {
        Object m1x;

        // Get the java.lang.Module object for module java.base.
        Class jlObject = Class.forName("java.lang.Object");
        Object jlObject_jlM = jlObject.getModule();
        assertNotNull(jlObject_jlM, "jlModule object of java.lang.Object should not be null");

        // Get the class loader for JVMAddModuleExportToAllUnnamed and assume it's also used to
        // load class p1.c1.
        ClassLoader this_cldr = JVMAddModuleExportToAllUnnamed.class.getClassLoader();

        // Define a module for p1.
        m1x = ModuleHelper.ModuleObject("module_one", this_cldr, new String[] { "p1" });
        assertNotNull(m1x, "Module should not be null");
        ModuleHelper.DefineModule(m1x, false, "9.0", "m1x/here", new String[] { "p1" });
        ModuleHelper.AddReadsModule(m1x, jlObject_jlM);

        // Make package p1 in m1x visible to everyone.
        ModuleHelper.AddModuleExportsToAll(m1x, "p1");

        // p1.c1's ctor tries to call a method in p2.c2.  This should not work
        // because p2 is in the unnamed module and p1.c1 is strict.
        try {
            Class p1_c1_class = Class.forName("p1.c1");
            p1_c1_class.newInstance();
        } catch (IllegalAccessError e) {
            System.out.println(e.getMessage());
            if (!e.getMessage().contains("does not read unnamed module")) {
                throw new RuntimeException("Wrong message: " + e.getMessage());
            }
        }
    }
}