--- /dev/null 2020-03-09 21:45:45.000000000 -0700 +++ new/src/java.base/share/classes/sun/security/action/LoadLibraryAction.java 2020-03-09 21:45:45.000000000 -0700 @@ -0,0 +1,67 @@ +/* + * Copyright (c) 2020, 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. Oracle designates this + * particular file as subject to the "Classpath" exception as provided + * by Oracle in the LICENSE file that accompanied this code. + * + * 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. + */ + +package sun.security.action; + +import jdk.internal.loader.BootLoader; + +import java.io.*; + +import java.security.AccessController; +import java.security.PrivilegedAction; + +/** + * A convenience class for loading a native library as a privileged action. + */ +public class LoadLibraryAction implements PrivilegedAction { + private final String name; + LoadLibraryAction(String name) { + this.name = name; + } + + @Override + public Void run() { + BootLoader.getNativeLibraries().loadLibrary(name); + return null; + } + + /** + * Convenience method to load a native library without going through doPrivileged + * if no security manager is present. This is unsafe for inclusion in a + * public API but allowable here since this class is now encapsulated. + * + * Note: This should only be used by modules defined to the boot loader. + * + * @param name the library name + */ + public static void privilegedLoadLibrary(String name) { + assert name.indexOf(File.separatorChar) < 0; + if (System.getSecurityManager() == null) { + BootLoader.getNativeLibraries().loadLibrary(name); + } else { + AccessController.doPrivileged(new LoadLibraryAction(name)); + } + } +}