JDK 11 jdk.dynalink.jmod - Dynamic Linking Module

JDK 11 jdk.dynalink.jmod is the JMOD file for JDK 11 Dynamic Linking module.

JDK 11 Dynamic Linking module compiled class files are stored in \fyicenter\jdk-11.0.1\jmods\jdk.dynalink.jmod.

JDK 11 Dynamic Linking module compiled class files are also linked and stored in the \fyicenter\jdk-11.0.1\lib\modules JImage file.

JDK 11 Dynamic Linking module source code files are stored in \fyicenter\jdk-11.0.1\lib\src.zip\jdk.dynalink.

You can click and view the content of each source code file in the list below.

✍: FYIcenter

jdk/dynalink/beans/CheckRestrictedPackage.java

/*
 * Copyright (c) 2010, 2013, Oracle and/or its affiliates. All rights reserved.
 * ORACLE PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
 *
 *
 *
 *
 *
 *
 *
 *
 *
 *
 *
 *
 *
 *
 *
 *
 *
 *
 *
 *
 */

/*
 *
 *
 *
 *
 *
 */
/*
   Copyright 2009-2013 Attila Szegedi

   Redistribution and use in source and binary forms, with or without
   modification, are permitted provided that the following conditions are
   met:
   * Redistributions of source code must retain the above copyright
     notice, this list of conditions and the following disclaimer.
   * Redistributions in binary form must reproduce the above copyright
     notice, this list of conditions and the following disclaimer in the
     documentation and/or other materials provided with the distribution.
   * Neither the name of the copyright holder nor the names of
     contributors may be used to endorse or promote products derived from
     this software without specific prior written permission.

   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
   IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
   TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
   PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL COPYRIGHT HOLDER
   BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
   CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
   SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
   BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
   WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
   OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
   ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/

package jdk.dynalink.beans;

import java.lang.reflect.Modifier;
import java.security.AccessControlContext;
import java.security.AccessController;
import java.security.PrivilegedAction;
import jdk.dynalink.internal.AccessControlContextFactory;

/**
 * A utility class to check whether a given class is in a package with restricted access e.g. "sun.*" etc.
 */
class CheckRestrictedPackage {
    private static final AccessControlContext NO_PERMISSIONS_CONTEXT =
            AccessControlContextFactory.createAccessControlContext();

    /**
     * Returns true if the class is either not public, or it resides in a package with restricted access.
     * @param clazz the class to test
     * @return true if the class is either not public, or it resides in a package with restricted access.
     */
    static boolean isRestrictedClass(final Class<?> clazz) {
        if(!Modifier.isPublic(clazz.getModifiers())) {
            // Non-public classes are always restricted
            return true;
        }
        final String name = clazz.getName();
        final int i = name.lastIndexOf('.');
        if (i == -1) {
            // Classes in default package are never restricted
            return false;
        }
        final String pkgName = name.substring(0, i);
        final Module module = clazz.getModule();
        if (module != null && !module.isExported(pkgName)) {
            return true;
        }

        final SecurityManager sm = System.getSecurityManager();
        if(sm == null) {
            // No further restrictions if we don't have a security manager
            return false;
        }
        // Do a package access check from within an access control context with no permissions
        try {
            AccessController.doPrivileged(new PrivilegedAction<Void>() {
                @Override
                public Void run() {
                    sm.checkPackageAccess(pkgName);
                    return null;
                }
            }, NO_PERMISSIONS_CONTEXT);
        } catch(final SecurityException e) {
            return true;
        }
        return false;
    }
}

jdk/dynalink/beans/CheckRestrictedPackage.java

 

JDK 11 jdk.editpad.jmod - Edit Pad Module

JDK 11 jdk.crypto.mscapi.jmod - Crypto MSCAPI Module

Download and Use JDK 11

⇑⇑ FAQ for JDK (Java Development Kit)

2020-02-29, 5371👍, 0💬