diff --git a/jdk/src/share/classes/com/sun/jmx/mbeanserver/OpenConverter.java b/jdk/src/share/classes/com/sun/jmx/mbeanserver/OpenConverter.java
index b4a8a44f115..ccd0ed57bf5 100644
--- a/jdk/src/share/classes/com/sun/jmx/mbeanserver/OpenConverter.java
+++ b/jdk/src/share/classes/com/sun/jmx/mbeanserver/OpenConverter.java
@@ -1118,11 +1118,11 @@ public abstract class OpenConverter {
             final Class<ConstructorProperties> propertyNamesClass = ConstructorProperties.class;
 
             Class targetClass = getTargetClass();
-            Constructor[] constrs = targetClass.getConstructors();
+            Constructor<?>[] constrs = targetClass.getConstructors();
 
             // Applicable if and only if there are any annotated constructors
-            List<Constructor> annotatedConstrList = newList();
-            for (Constructor constr : constrs) {
+            List<Constructor<?>> annotatedConstrList = newList();
+            for (Constructor<?> constr : constrs) {
                 if (Modifier.isPublic(constr.getModifiers())
                         && constr.getAnnotation(propertyNamesClass) != null)
                     annotatedConstrList.add(constr);
@@ -1152,7 +1152,7 @@ public abstract class OpenConverter {
             // Also remember the set of properties in that constructor
             // so we can test unambiguity.
             Set<BitSet> getterIndexSets = newSet();
-            for (Constructor constr : annotatedConstrList) {
+            for (Constructor<?> constr : annotatedConstrList) {
                 String[] propertyNames =
                     constr.getAnnotation(propertyNamesClass).value();
 
@@ -1309,10 +1309,10 @@ public abstract class OpenConverter {
         }
 
         private static class Constr {
-            final Constructor constructor;
+            final Constructor<?> constructor;
             final int[] paramIndexes;
             final BitSet presentParams;
-            Constr(Constructor constructor, int[] paramIndexes,
+            Constr(Constructor<?> constructor, int[] paramIndexes,
                    BitSet presentParams) {
                 this.constructor = constructor;
                 this.paramIndexes = paramIndexes;
diff --git a/jdk/src/share/classes/com/sun/management/package.html b/jdk/src/share/classes/com/sun/management/package.html
index 8a1a4a5381c..372d9c4cc54 100644
--- a/jdk/src/share/classes/com/sun/management/package.html
+++ b/jdk/src/share/classes/com/sun/management/package.html
@@ -1,4 +1,4 @@
-CTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2 Final//EN">
+<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2 Final//EN">
 <html>
 <head>
 <!--
diff --git a/jdk/src/share/classes/java/beans/MetaData.java b/jdk/src/share/classes/java/beans/MetaData.java
index 4771bb7d3c1..7b9f6ced377 100644
--- a/jdk/src/share/classes/java/beans/MetaData.java
+++ b/jdk/src/share/classes/java/beans/MetaData.java
@@ -1553,7 +1553,7 @@ class MetaData {
     private static String[] getConstructorProperties(Class type) {
         String[] names = null;
         int length = 0;
-        for (Constructor constructor : type.getConstructors()) {
+        for (Constructor<?> constructor : type.getConstructors()) {
             String[] value = getAnnotationValue(constructor);
             if ((value != null) && (length < value.length) && isValid(constructor, value)) {
                 names = value;
@@ -1563,14 +1563,14 @@ class MetaData {
         return names;
     }
 
-    private static String[] getAnnotationValue(Constructor constructor) {
+    private static String[] getAnnotationValue(Constructor<?> constructor) {
         ConstructorProperties annotation = constructor.getAnnotation(ConstructorProperties.class);
         return (annotation != null)
                 ? annotation.value()
                 : null;
     }
 
-    private static boolean isValid(Constructor constructor, String[] names) {
+    private static boolean isValid(Constructor<?> constructor, String[] names) {
         Class[] parameters = constructor.getParameterTypes();
         if (names.length != parameters.length) {
             return false;
diff --git a/jdk/src/share/classes/javax/management/MBeanServer.java b/jdk/src/share/classes/javax/management/MBeanServer.java
index 607f234c8b0..728f71340ba 100644
--- a/jdk/src/share/classes/javax/management/MBeanServer.java
+++ b/jdk/src/share/classes/javax/management/MBeanServer.java
@@ -50,7 +50,7 @@ import javax.management.loading.ClassLoaderRepository;
  * server.  A Java object cannot be registered in the MBean server
  * unless it is a JMX compliant MBean.</p>
  *
- * <p>When an MBean is registered or unregistered in the MBean server
+ * <p id="notif">When an MBean is registered or unregistered in the MBean server
  * a {@link javax.management.MBeanServerNotification
  * MBeanServerNotification} Notification is emitted. To register an
  * object as listener to MBeanServerNotifications you should call the
@@ -258,27 +258,43 @@ import javax.management.loading.ClassLoaderRepository;
  */
 public interface MBeanServer extends MBeanServerConnection {
 
-    // doc comment inherited from MBeanServerConnection
+    /**
+     * {@inheritDoc}
+     * <p>If this method successfully creates an MBean, a notification
+     * is sent as described <a href="#notif">above</a>.</p>
+     */
     public ObjectInstance createMBean(String className, ObjectName name)
             throws ReflectionException, InstanceAlreadyExistsException,
                    MBeanRegistrationException, MBeanException,
                    NotCompliantMBeanException;
 
-    // doc comment inherited from MBeanServerConnection
+    /**
+     * {@inheritDoc}
+     * <p>If this method successfully creates an MBean, a notification
+     * is sent as described <a href="#notif">above</a>.</p>
+     */
     public ObjectInstance createMBean(String className, ObjectName name,
                                       ObjectName loaderName)
             throws ReflectionException, InstanceAlreadyExistsException,
                    MBeanRegistrationException, MBeanException,
                    NotCompliantMBeanException, InstanceNotFoundException;
 
-    // doc comment inherited from MBeanServerConnection
+    /**
+     * {@inheritDoc}
+     * <p>If this method successfully creates an MBean, a notification
+     * is sent as described <a href="#notif">above</a>.</p>
+     */
     public ObjectInstance createMBean(String className, ObjectName name,
                                       Object params[], String signature[])
             throws ReflectionException, InstanceAlreadyExistsException,
                    MBeanRegistrationException, MBeanException,
                    NotCompliantMBeanException;
 
-    // doc comment inherited from MBeanServerConnection
+    /**
+     * {@inheritDoc}
+     * <p>If this method successfully creates an MBean, a notification
+     * is sent as described <a href="#notif">above</a>.</p>
+     */
     public ObjectInstance createMBean(String className, ObjectName name,
                                       ObjectName loaderName, Object params[],
                                       String signature[])
@@ -287,12 +303,15 @@ public interface MBeanServer extends MBeanServerConnection {
                    NotCompliantMBeanException, InstanceNotFoundException;
 
     /**
-     * Registers a pre-existing object as an MBean with the MBean
+     * <p>Registers a pre-existing object as an MBean with the MBean
      * server. If the object name given is null, the MBean must
      * provide its own name by implementing the {@link
      * javax.management.MBeanRegistration MBeanRegistration} interface
      * and returning the name from the {@link
-     * MBeanRegistration#preRegister preRegister} method.
+     * MBeanRegistration#preRegister preRegister} method.</p>
+     *
+     * <p>If this method successfully registers an MBean, a notification
+     * is sent as described <a href="#notif">above</a>.</p>
      *
      * @param object The  MBean to be registered as an MBean.
      * @param name The object name of the MBean. May be null.
@@ -319,7 +338,12 @@ public interface MBeanServer extends MBeanServerConnection {
             throws InstanceAlreadyExistsException, MBeanRegistrationException,
                    NotCompliantMBeanException;
 
-    // doc comment inherited from MBeanServerConnection
+    /**
+     * {@inheritDoc}
+     *
+     * <p>If this method successfully unregisters an MBean, a notification
+     * is sent as described <a href="#notif">above</a>.</p>
+     */
     public void unregisterMBean(ObjectName name)
             throws InstanceNotFoundException, MBeanRegistrationException;
 
diff --git a/jdk/src/share/classes/javax/management/modelmbean/RequiredModelMBean.java b/jdk/src/share/classes/javax/management/modelmbean/RequiredModelMBean.java
index 0b9072a5e41..a0d68356a0b 100644
--- a/jdk/src/share/classes/javax/management/modelmbean/RequiredModelMBean.java
+++ b/jdk/src/share/classes/javax/management/modelmbean/RequiredModelMBean.java
@@ -48,6 +48,7 @@ import java.util.logging.Level;
 import java.util.Map;
 import java.util.Set;
 
+import java.util.Vector;
 import javax.management.Attribute;
 import javax.management.AttributeChangeNotification;
 import javax.management.AttributeChangeNotificationFilter;
@@ -132,8 +133,6 @@ public class RequiredModelMBean
      * and operations will be executed */
     private Object managedResource = null;
 
-    private static final String currClass = "RequiredModelMBean";
-
     /* records the registering in MBeanServer */
     private boolean registered = false;
     private transient MBeanServer server = null;
@@ -2488,10 +2487,13 @@ public class RequiredModelMBean
         }
 
         if (MODELMBEAN_LOGGER.isLoggable(Level.FINER)) {
+            Vector<String> enabledAttrs = currFilter.getEnabledAttributes();
+            String s = (enabledAttrs.size() > 1) ?
+                        "[" + enabledAttrs.firstElement() + ", ...]" :
+                        enabledAttrs.toString();
             MODELMBEAN_LOGGER.logp(Level.FINER,
                     RequiredModelMBean.class.getName(), mth,
-                "Set attribute change filter to " +
-                currFilter.getEnabledAttributes().firstElement());
+                "Set attribute change filter to " + s);
         }
 
         attributeBroadcaster.addNotificationListener(inlistener,currFilter,
diff --git a/jdk/src/share/classes/sun/management/Flag.java b/jdk/src/share/classes/sun/management/Flag.java
index 510edadd668..d89761cb1f7 100644
--- a/jdk/src/share/classes/sun/management/Flag.java
+++ b/jdk/src/share/classes/sun/management/Flag.java
@@ -64,7 +64,8 @@ class Flag {
     }
 
     VMOption getVMOption() {
-        return new VMOption(name, value.toString(), writeable, origin);
+        String val = value == null ? "" : value.toString();
+        return new VMOption(name, val, writeable, origin);
     }
 
     static Flag getFlag(String name) {
diff --git a/jdk/test/com/sun/management/HotSpotDiagnosticMXBean/GetDiagnosticOptions.java b/jdk/test/com/sun/management/HotSpotDiagnosticMXBean/GetDiagnosticOptions.java
new file mode 100644
index 00000000000..78d57b27578
--- /dev/null
+++ b/jdk/test/com/sun/management/HotSpotDiagnosticMXBean/GetDiagnosticOptions.java
@@ -0,0 +1,61 @@
+/*
+ * Copyright 2005 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     6658779
+ * @summary Basic Test for HotSpotDiagnosticMXBean.getDiagnosticOptions()
+ * @author  Daniel Fuchs
+ *
+ * @run main GetDiagnosticOptions
+ */
+
+import com.sun.management.HotSpotDiagnosticMXBean;
+import com.sun.management.VMOption;
+import java.lang.management.ManagementFactory;
+import java.util.List;
+import javax.management.MBeanServer;
+
+public class GetDiagnosticOptions {
+    private static String HOTSPOT_DIAGNOSTIC_MXBEAN_NAME =
+        "com.sun.management:type=HotSpotDiagnostic";
+
+    public static void main(String[] args) throws Exception {
+        HotSpotDiagnosticMXBean mbean =
+            sun.management.ManagementFactory.getDiagnosticMXBean();
+        checkDiagnosticOptions(mbean);
+
+        MBeanServer mbs = ManagementFactory.getPlatformMBeanServer();
+        mbean = ManagementFactory.newPlatformMXBeanProxy(mbs,
+                    HOTSPOT_DIAGNOSTIC_MXBEAN_NAME,
+                    HotSpotDiagnosticMXBean.class);
+        checkDiagnosticOptions(mbean);
+    }
+
+    private static void checkDiagnosticOptions(HotSpotDiagnosticMXBean mbean) {
+        List<VMOption> options = mbean.getDiagnosticOptions();
+        for (VMOption opt : options) {
+            System.out.println("option: "+opt.getName()+"="+opt.getValue());
+        }
+    }
+}
diff --git a/jdk/test/javax/management/modelmbean/LoggingExceptionTest.java b/jdk/test/javax/management/modelmbean/LoggingExceptionTest.java
new file mode 100644
index 00000000000..357a0e050da
--- /dev/null
+++ b/jdk/test/javax/management/modelmbean/LoggingExceptionTest.java
@@ -0,0 +1,81 @@
+/*
+ * @test
+ * @bug 6471865 6675768
+ * @summary DescriptorSupport constructors throw IAE when traces are enabled;
+ * RequiredModelMBean.addAttributeChangeNotificationListener throws exception
+ * when traces enabled and no attributes.
+ * @author Luis-Miguel Alventosa
+ * @author Paul Cheeseman
+ */
+
+import java.util.logging.ConsoleHandler;
+import java.util.logging.Handler;
+import java.util.logging.Level;
+import java.util.logging.Logger;
+import javax.management.Notification;
+import javax.management.NotificationListener;
+import javax.management.modelmbean.DescriptorSupport;
+import javax.management.modelmbean.RequiredModelMBean;
+
+public class LoggingExceptionTest {
+    private static final String tests[] = new String[] {
+        "DescriptorSupport()",
+        "DescriptorSupport(int)",
+        "DescriptorSupport(String)",
+        "DescriptorSupport(String...)",
+        "DescriptorSupport(String[], Object[])",
+        "DescriptorSupport(DescriptorSupport)",
+        "RequiredModelMBean.addAttributeChangeNotificationListener",
+    };
+    public static void main(String[] args) {
+        Handler handler = new ConsoleHandler();
+        Logger logger = Logger.getLogger("javax.management.modelmbean");
+        logger.addHandler(handler);
+        logger.setLevel(Level.FINEST);
+        try {
+            for (int i = 0; i < tests.length; i++) {
+                System.out.println(">>> DescriptorSupportLoggingTest: Test Case " + i);
+                DescriptorSupport ds;
+                String msg = "Instantiate " + tests[i];
+                System.out.println(msg);
+                switch (i) {
+                    case 0:
+                        ds = new DescriptorSupport();
+                        break;
+                    case 1:
+                        ds = new DescriptorSupport(10);
+                        break;
+                    case 2:
+                        ds = new DescriptorSupport(new DescriptorSupport().toXMLString());
+                        break;
+                    case 3:
+                        ds = new DescriptorSupport("name1=value1", "name2=value2");
+                        break;
+                    case 4:
+                        ds = new DescriptorSupport(new String[] {"name"}, new Object[] {"value"});
+                        break;
+                    case 5:
+                        ds = new DescriptorSupport(new DescriptorSupport());
+                        break;
+                    case 6:
+                        RequiredModelMBean mbean = new RequiredModelMBean();
+                        NotificationListener nl = new NotificationListener() {
+                            public void handleNotification(Notification notification,
+                                                           Object handback) {}
+                        };
+                        mbean.addAttributeChangeNotificationListener(nl, null, null);
+                        break;
+                    default:
+                        throw new AssertionError();
+                }
+                System.out.println(msg + " OK");
+            }
+        } catch (Exception e) {
+            System.out.println("Got unexpected exception = " + e);
+            String msg = "Test FAILED!";
+            System.out.println(msg);
+            throw new IllegalArgumentException(msg);
+        }
+        System.out.println("Test PASSED!");
+    }
+}
