Initial load
diff --git a/test/java/security/PermissionCollection/Concurrent.java b/test/java/security/PermissionCollection/Concurrent.java
new file mode 100644
index 0000000..7b58299
--- /dev/null
+++ b/test/java/security/PermissionCollection/Concurrent.java
@@ -0,0 +1,240 @@
+/*
+ * Copyright 2003 Sun Microsystems, Inc.  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.
+ *
+ * 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
+ * CA 95054 USA or visit www.sun.com if you need additional information or
+ * have any questions.
+ */
+
+/*
+ * @test
+ * @bug 4671598
+ * @summary PermissionCollection is not properly synchronized
+ */
+
+import java.security.*; // AllPermission, BasicPermission, Permissions
+import java.net.NetPermission;
+import java.net.SocketPermission;
+import java.io.FilePermission;
+import java.util.PropertyPermission;
+import javax.security.auth.AuthPermission;
+import javax.security.auth.kerberos.DelegationPermission;
+import javax.security.auth.kerberos.ServicePermission;
+import javax.management.MBeanServerPermission;
+import com.sun.rmi.rmid.ExecPermission;
+import com.sun.rmi.rmid.ExecOptionPermission;
+
+import java.util.*;
+
+public class Concurrent {
+    private static final int LIMIT1 = 2000;
+    private static final int LIMIT2 = 1000;
+    private static final boolean debug = false;
+    private static final Map errors =
+        Collections.synchronizedMap(new HashMap());
+
+    public static void main(String args[]) throws Exception {
+        testPc(allp);
+        testPc(filep);
+        testPc(sockp);
+        testPc(propp);
+        testPc(basicp);
+        testPc(delegatep);
+        testPc(servicep);
+        testPc(mbeanp);
+        testPc(unresp);
+
+        testPerms();
+
+        if (errors.size() > 0) {
+            if (true) {
+                Iterator iter = errors.entrySet().iterator();
+                while (iter.hasNext()) {
+                    System.out.println(iter.next());
+                }
+            };
+            throw (Exception) new Exception("Got errors");
+        }
+    }
+
+    private static void testPc (final Permission[] perm) throws Exception {
+
+        final PermissionCollection pc = perm[0].newPermissionCollection();
+
+        new Thread() {
+            {
+                setDaemon(true);
+                start();
+            }
+            public void run() {
+                try {
+                    for (int i = 0; i < LIMIT1; i++) {
+                        for (int j = 0; j < perm.length; j++) {
+                            pc.add(perm[j]);
+                            if (debug) {
+                                System.out.println("added " + perm[j]);
+                            }
+                        }
+                    }
+                } catch (Exception e) {
+                    errors.put(perm[0].getClass().getName(), e);
+                }
+            }
+        };
+        try {
+            for (int i = 0; i < LIMIT2; i++) {
+                boolean result = pc.implies(perm[perm.length-1]);
+                if (debug) {
+                    System.out.println(perm[perm.length-1] + " implies " + result);
+                }
+
+                synchronized (pc) {
+                    Enumeration en = pc.elements();
+                    while (en.hasMoreElements()) {
+                        Object obj = en.nextElement();
+                        if (debug) {
+                            System.out.println(obj);
+                        }
+                    }
+                }
+            }
+        } catch (Exception e) {
+            errors.put(perm[0].getClass().getName(), e);
+        }
+    }
+
+    private static void testPerms () throws Exception {
+
+        final Permissions pc = new Permissions();
+
+        new Thread() {
+            {
+                setDaemon(true);
+                start();
+            }
+            public void run() {
+                try {
+                    for (int i = 0; i < LIMIT1; i++) {
+                        for (int j = 0; j < permlist.length; j++) {
+                            for (int k = 0; k < permlist[j].length; k++) {
+                                pc.add(permlist[j][k]);
+                            }
+                        }
+                    }
+                } catch (Exception e) {
+                    errors.put("java.security.Permissions", e);
+                }
+            }
+        };
+        try {
+            for (int i = 0; i < LIMIT2; i++) {
+                for (int j = 0; j < permlist.length; j++) {
+                    boolean result = pc.implies(permlist[j][0]);
+                    if (debug) {
+                        System.out.println(permlist[j][0] + " implies " + result);
+                    }
+                }
+
+                synchronized (pc) {
+                    Enumeration en = pc.elements();
+                    while (en.hasMoreElements()) {
+                        Object obj = en.nextElement();
+                        if (debug) {
+                            System.out.println(obj);
+                        }
+                    }
+                }
+            }
+        } catch (Exception e) {
+            errors.put("java.security.Permissions", e);
+        }
+    }
+
+    private static final Permission[] allp = new Permission[]{
+        new AllPermission(), new AllPermission()};
+
+    private static final Permission[] filep = new Permission[]{
+        new FilePermission("/home/foobar", "read"),
+        new FilePermission("/home/foo", "write"),
+        new FilePermission("/home/foobar", "read,write"),
+            };
+
+    private static final Permission[] sockp = new Permission[]{
+        new SocketPermission("example.net", "connect"),
+            new SocketPermission("www.sun.com", "resolve"),
+            new SocketPermission("www.test1.com", "accept"),
+            new SocketPermission("www.test3.com", "resolve,connect"),
+            new SocketPermission("www.test4.com", "listen"),
+            };
+
+    private static final Permission[] propp = new Permission[]{
+        new PropertyPermission("user.home", "read"),
+            new PropertyPermission("java.home", "write"),
+            new PropertyPermission("test.home", "write"),
+            new PropertyPermission("test1.home", "read"),
+            new PropertyPermission("test2.home", "read"),
+            };
+
+    private static final Permission[] basicp = new Permission[] {
+        new NetPermission("setDefaultAuthenticator"),
+            new NetPermission("requestPasswordAuthentication"),
+            new NetPermission("specifyStreamHandler")
+            };
+
+    private static final Permission[] delegatep = new Permission[] {
+        new DelegationPermission(
+            "\"host/foo.example.com@EXAMPLE.COM\" \"cn=John,o=imc,c=us\""),
+        new DelegationPermission(
+            "\"user/rosanna@EXAMPLE.COM\" \"cn=John,o=imc,c=us\""),
+        new DelegationPermission(
+            "\"host/bar.example.com@EXAMPLE.COM\" \"cn=John,o=imc,c=us\"")
+            };
+
+    private static final Permission[] servicep = new Permission[]{
+        new ServicePermission("krbtgt/EXAMPLE.COM@EXAMPLE.COM", "initiate"),
+        new ServicePermission("ldap/EXAMPLE.COM@EXAMPLE.COM", "initiate"),
+        new ServicePermission("imap/EXAMPLE.COM@EXAMPLE.COM", "accept"),
+        new ServicePermission("acap/EXAMPLE.COM@EXAMPLE.COM", "initiate"),
+        new ServicePermission("host/EXAMPLE.COM@EXAMPLE.COM", "initiate"),
+            };
+
+    private static final Permission[] mbeanp = new Permission[] {
+        new MBeanServerPermission("createMBeanServer"),
+        new MBeanServerPermission("findMBeanServer"),
+        new MBeanServerPermission("newMBeanServer"),
+        new MBeanServerPermission("releaseMBeanServer"),
+            };
+
+    private static final Permission[] unresp = new Permission[] {
+        new UnresolvedPermission("com.unknown.TestClass", "UnknownPermission",
+            "read,write", null),
+        new UnresolvedPermission("com.unknown.TestClass", "APermission",
+            "read,write", null),
+        new UnresolvedPermission("com.unknown.TestClass", "BPermission",
+            "read,write", null),
+        new UnresolvedPermission("com.unknown.CClass", "CPermission",
+            "read,write", null),
+        new UnresolvedPermission("com.unknown.DClass", "DUnknownPermission",
+            "read,write", null),
+        new UnresolvedPermission("com.unknown.EClass", "EUnknownPermission",
+            "read,write", null),
+            };
+
+    private static final Permission[][] permlist = new Permission[][]{
+        allp, filep, sockp, propp, basicp, delegatep, servicep, mbeanp, unresp};
+}