feat(jdk8): move files to new folder to avoid resources compiled.

jdkSrc/jdk8/com/sun/jndi/ldap/VersionHelper12.java

@@ -0,0 +1,128 @@
+/*
+ * Copyright (c) 1999, 2022, 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 com.sun.jndi.ldap;
+
+import java.net.URLClassLoader;
+import java.net.MalformedURLException;
+import java.security.AccessControlContext;
+import java.security.AccessController;
+import java.security.PrivilegedAction;
+import sun.misc.SharedSecrets;
+
+final class VersionHelper12 extends VersionHelper {
+
+    // System property to control whether classes may be loaded from an
+    // arbitrary URL code base.
+    private static final String TRUST_URL_CODEBASE_PROPERTY =
+        "com.sun.jndi.ldap.object.trustURLCodebase";
+
+    // System property to control whether classes are allowed to be loaded from
+    // 'javaSerializedData', 'javaRemoteLocation' or 'javaReferenceAddress' attributes.
+    private static final String TRUST_SERIAL_DATA_PROPERTY =
+        "com.sun.jndi.ldap.object.trustSerialData";
+
+    /**
+     * Determines whether objects may be deserialized or reconstructed from a content of
+     * 'javaSerializedData', 'javaRemoteLocation' or 'javaReferenceAddress' LDAP attributes.
+     */
+    private static final boolean trustSerialData;
+
+    // Determine whether classes may be loaded from an arbitrary URL code base.
+    private static final boolean trustURLCodebase;
+
+    static {
+        String trust = getPrivilegedProperty(TRUST_URL_CODEBASE_PROPERTY, "false");
+        trustURLCodebase = "true".equalsIgnoreCase(trust);
+        String trustSDString = getPrivilegedProperty(TRUST_SERIAL_DATA_PROPERTY, "false");
+        trustSerialData = "true".equalsIgnoreCase(trustSDString);
+    }
+
+    private static String getPrivilegedProperty(String propertyName, String defaultVal) {
+        PrivilegedAction<String> action = () -> System.getProperty(propertyName, defaultVal);
+        if (System.getSecurityManager() == null) {
+            return action.run();
+        } else {
+            return AccessController.doPrivileged(action);
+        }
+    }
+
+    VersionHelper12() {} // Disallow external from creating one of these.
+
+    /**
+     * Returns true if deserialization or reconstruction of objects from
+     * 'javaSerializedData', 'javaRemoteLocation' and 'javaReferenceAddress'
+     * LDAP attributes is allowed.
+     *
+     * @return true if deserialization is allowed; false - otherwise
+     */
+    public static boolean isSerialDataAllowed() {
+        return trustSerialData;
+    }
+
+    ClassLoader getURLClassLoader(String[] url)
+        throws MalformedURLException {
+            ClassLoader parent = getContextClassLoader();
+            /*
+             * Classes may only be loaded from an arbitrary URL code base when
+             * the system property com.sun.jndi.ldap.object.trustURLCodebase
+             * has been set to "true".
+             */
+            if (url != null && trustURLCodebase) {
+                return URLClassLoader.newInstance(getUrlArray(url), parent);
+            } else {
+                return parent;
+            }
+    }
+
+    Class<?> loadClass(String className) throws ClassNotFoundException {
+        ClassLoader cl = getContextClassLoader();
+        return Class.forName(className, true, cl);
+    }
+
+    private ClassLoader getContextClassLoader() {
+        return AccessController.doPrivileged(
+            new PrivilegedAction<ClassLoader>() {
+                public ClassLoader run() {
+                    return Thread.currentThread().getContextClassLoader();
+                }
+            }
+        );
+    }
+
+    Thread createThread(final Runnable r) {
+        final AccessControlContext acc = AccessController.getContext();
+        // 4290486: doPrivileged is needed to create a thread in
+        // an environment that restricts "modifyThreadGroup".
+        return AccessController.doPrivileged(
+                new PrivilegedAction<Thread>() {
+                    public Thread run() {
+                        return SharedSecrets.getJavaLangAccess()
+                                .newThreadWithAcc(r, acc);
+                    }
+                }
+        );
+    }
+}