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Java example source code file (JDK-8021129.js)

This example Java source code file (JDK-8021129.js) is included in the alvinalexander.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" TM.

Learn more about this Java project at its project page.

Java - Java tags/keywords

can, can't, internalrunnablesuperclass, superclass

The JDK-8021129.js Java example source code

/*
 * Copyright (c) 2010, 2013, Oracle and/or its affiliates. All rights reserved.
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 * 
 * This code is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 only, as
 * published by the Free Software Foundation.
 * 
 * This code is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 * 
 * You should have received a copy of the GNU General Public License version
 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 * 
 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
 * or visit www.oracle.com if you need additional information or have any
 * questions.
 */

/**
 * JDK-8021129: Test prevention of access to members of restricted classes.
 * Note that even though the script runs as trusted, we still don't allow
 * access to non-public portions of restricted classes.
 * 
 * @test
 * @run
 */

var InternalRunnableSuperclass = Java.type("jdk.nashorn.test.models.InternalRunnableSuperclass");
var r1 = InternalRunnableSuperclass.makeInternalRunnable();
r1.run() // Can execute method from an implemented non-restricted interface
print(r1.toString()) // Can execute public method from a superclass

print(r1.restrictedRun === undefined) // Can't see method from a restricted interface
print(r1.canNotInvokeThis === undefined) // Can't see any other public methods
print(r1.invisibleProperty === undefined) // Can't see any other properties
print(r1.canSeeThisField === undefined) // Can't see fields from superclasses
print(r1.canNotSeeThisField === undefined) // Can't see its own fields

var r2 = new InternalRunnableSuperclass();
print(r2.canSeeThisField) // Superclass field works fine on its own

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