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

jdkSrc/jdk8/com/sun/jmx/remote/security/JMXSubjectDomainCombiner.java

@@ -0,0 +1,106 @@
+/*
+ * Copyright (c) 2003, 2005, 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.jmx.remote.security;
+
+import java.security.AccessControlContext;
+import java.security.AccessController;
+import java.security.CodeSource;
+import java.security.Permissions;
+import java.security.ProtectionDomain;
+import javax.security.auth.Subject;
+import javax.security.auth.SubjectDomainCombiner;
+
+/**
+ * <p>This class represents an extension to the {@link SubjectDomainCombiner}
+ * and is used to add a new {@link ProtectionDomain}, comprised of a null
+ * codesource/signers and an empty permission set, to the access control
+ * context with which this combiner is combined.</p>
+ *
+ * <p>When the {@link #combine} method is called the {@link ProtectionDomain}
+ * is augmented with the permissions granted to the set of principals present
+ * in the supplied {@link Subject}.</p>
+ */
+public class JMXSubjectDomainCombiner extends SubjectDomainCombiner {
+
+    public JMXSubjectDomainCombiner(Subject s) {
+        super(s);
+    }
+
+    public ProtectionDomain[] combine(ProtectionDomain[] current,
+                                      ProtectionDomain[] assigned) {
+        // Add a new ProtectionDomain with the null codesource/signers, and
+        // the empty permission set, to the end of the array containing the
+        // 'current' protections domains, i.e. the ones that will be augmented
+        // with the permissions granted to the set of principals present in
+        // the supplied subject.
+        //
+        ProtectionDomain[] newCurrent;
+        if (current == null || current.length == 0) {
+            newCurrent = new ProtectionDomain[1];
+            newCurrent[0] = pdNoPerms;
+        } else {
+            newCurrent = new ProtectionDomain[current.length + 1];
+            for (int i = 0; i < current.length; i++) {
+                newCurrent[i] = current[i];
+            }
+            newCurrent[current.length] = pdNoPerms;
+        }
+        return super.combine(newCurrent, assigned);
+    }
+
+    /**
+     * A null CodeSource.
+     */
+    private static final CodeSource nullCodeSource =
+        new CodeSource(null, (java.security.cert.Certificate[]) null);
+
+    /**
+     * A ProtectionDomain with a null CodeSource and an empty permission set.
+     */
+    private static final ProtectionDomain pdNoPerms =
+        new ProtectionDomain(nullCodeSource, new Permissions(), null, null);
+
+    /**
+     * Get the current AccessControlContext combined with the supplied subject.
+     */
+    public static AccessControlContext getContext(Subject subject) {
+        return new AccessControlContext(AccessController.getContext(),
+                                        new JMXSubjectDomainCombiner(subject));
+    }
+
+    /**
+     * Get the AccessControlContext of the domain combiner created with
+     * the supplied subject, i.e. an AccessControlContext with the domain
+     * combiner created with the supplied subject and where the caller's
+     * context has been removed.
+     */
+    public static AccessControlContext
+        getDomainCombinerContext(Subject subject) {
+        return new AccessControlContext(
+            new AccessControlContext(new ProtectionDomain[0]),
+            new JMXSubjectDomainCombiner(subject));
+    }
+}