jdk-24/test/jdk/java/lang/reflect/Nestmates/TestSecurityManagerChecks.java

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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 * version 2 for more details (a copy is included in the LICENSE file that
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 * 2 along with this work; if not, write to the Free Software Foundation,
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/*
 * @test
 * @bug 8046171
 * @summary Test that security checks occur for getNestHost/getNestMembers
 *
 * @library /test/lib
 * @build TestSecurityManagerChecks testPkg.Host testPkg.Singleton
 * @run driver jdk.test.lib.helpers.ClassFileInstaller testPkg.Host testPkg.Host$Member testPkg.Singleton
 * @run main/othervm -Xbootclasspath/a:. -Djava.security.manager=allow TestSecurityManagerChecks
 */

// ClassFileInstaller copies the testPkg files into the "current" directory
// so we can add it to the bootclasspath. Then when we run the test the
// loader for the testPkg files is the bootloader but the loader for the
// test class is the system loader, hence a package access check will fail
// because the system loader is not the same as, nor a parent of, the bootloader.
import java.security.Security;

public class TestSecurityManagerChecks {

    public static void main(String[] args) throws Throwable {

        // First get hold of the target classes before we enable security
        Class<?> host = testPkg.Host.class;
        Class<?> member = testPkg.Host.Member.class;
        Class<?> memberArray = testPkg.Host.Member[].class;
        Class<?> singleton = testPkg.Singleton.class;

        // Next add testPkg to the set of packages for which package-access
        // permission is required
        Security.setProperty("package.access",
                             Security.getProperty("package.access") + ",testPkg.");

        // Finally install a default security manager
        SecurityManager sm = new SecurityManager();
        System.setSecurityManager(sm);

        // These cases all succeed
        getNestHost(int.class);   // primitive
        getNestHost(int[].class); // primitive[]
        getNestHost(host);        // host class
        getNestHost(memberArray); // NestedT[]
        getNestHost(singleton);   // Singleton nest

        getNestMembers(int.class);   // primitive
        getNestMembers(int[].class); // primitive[]
        getNestMembers(memberArray); // NestedT[]
        getNestMembers(singleton);   // Singleton nest

        // these cases all fail
        getNestHostThrows(member); // NestedT

        getNestMembersThrows(member); // NestedT
        getNestMembersThrows(host);   // host class
    }

    static void getNestHost(Class<?> c) {
        Class<?> host = c.getNestHost();
        System.out.println("OK - getNestHost succeeded for " + c.getName());
    }

    static void getNestHostThrows(Class<?> c) throws SecurityException {
        try {
            Class<?> host = c.getNestHost();
            throw new Error("getNestHost succeeded for " + c.getName());
        } catch (SecurityException e) {
            System.out.println("OK - getNestHost for " + c.getName() +
                               " got expected exception: " + e);
        }
    }

    static void getNestMembers(Class<?> c) {
        Class<?>[] members = c.getNestMembers();
        System.out.println("OK - getNestMembers succeeded for " + c.getName());
    }

    static void getNestMembersThrows(Class<?> c) throws SecurityException {
        try {
            Class<?>[] members = c.getNestMembers();
            throw new Error("getNestMembers succeeded for " + c.getName());
        } catch (SecurityException e) {
            System.out.println("OK - getNestMembers for " + c.getName() +
                               " got expected exception: " + e);
        }
    }

}