--- a/jdk/src/java.base/share/classes/sun/reflect/ClassDefiner.java Fri Apr 15 16:19:14 2016 +0100
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,74 +0,0 @@
-/*
- * Copyright (c) 2001, 2011, 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.reflect;
-
-import java.security.AccessController;
-import java.security.PrivilegedAction;
-import jdk.internal.misc.Unsafe;
-
-/** Utility class which assists in calling Unsafe.defineClass() by
- creating a new class loader which delegates to the one needed in
- order for proper resolution of the given bytecodes to occur. */
-
-class ClassDefiner {
- static final Unsafe unsafe = Unsafe.getUnsafe();
-
- /** <P> We define generated code into a new class loader which
- delegates to the defining loader of the target class. It is
- necessary for the VM to be able to resolve references to the
- target class from the generated bytecodes, which could not occur
- if the generated code was loaded into the bootstrap class
- loader. </P>
-
- <P> There are two primary reasons for creating a new loader
- instead of defining these bytecodes directly into the defining
- loader of the target class: first, it avoids any possible
- security risk of having these bytecodes in the same loader.
- Second, it allows the generated bytecodes to be unloaded earlier
- than would otherwise be possible, decreasing run-time
- footprint. </P>
- */
- static Class<?> defineClass(String name, byte[] bytes, int off, int len,
- final ClassLoader parentClassLoader)
- {
- ClassLoader newLoader = AccessController.doPrivileged(
- new PrivilegedAction<ClassLoader>() {
- public ClassLoader run() {
- return new DelegatingClassLoader(parentClassLoader);
- }
- });
- return unsafe.defineClass(name, bytes, off, len, newLoader, null);
- }
-}
-
-
-// NOTE: this class's name and presence are known to the virtual
-// machine as of the fix for 4474172.
-class DelegatingClassLoader extends ClassLoader {
- DelegatingClassLoader(ClassLoader parent) {
- super(parent);
- }
-}