Index: torque/src/main/java/org/apache/james/mailboxmanager/torque/UidChangeTracker.java
===================================================================
--- torque/src/main/java/org/apache/james/mailboxmanager/torque/UidChangeTracker.java	(Revision 960168)
+++ torque/src/main/java/org/apache/james/mailboxmanager/torque/UidChangeTracker.java	(Arbeitskopie)
@@ -30,13 +30,13 @@
 
 import javax.mail.Flags;
 
-import org.apache.james.imap.mailbox.Constants;
+import org.apache.james.imap.mailbox.MailboxConstants;
 import org.apache.james.imap.mailbox.Mailbox;
 import org.apache.james.imap.mailbox.MailboxListener;
 import org.apache.james.imap.mailbox.util.MailboxEventDispatcher;
 import org.apache.james.imap.mailbox.util.UidRange;
 
-public class UidChangeTracker implements Constants {
+public class UidChangeTracker implements MailboxConstants {
 
     private final MailboxEventDispatcher eventDispatcher;
 
Index: torque/src/main/java/org/apache/james/mailboxmanager/torque/TorqueMailboxManager.java
===================================================================
--- torque/src/main/java/org/apache/james/mailboxmanager/torque/TorqueMailboxManager.java	(Revision 960168)
+++ torque/src/main/java/org/apache/james/mailboxmanager/torque/TorqueMailboxManager.java	(Arbeitskopie)
@@ -60,7 +60,7 @@
 
 public class TorqueMailboxManager implements MailboxManager {
 
-    public static final String USER_NAMESPACE_PREFIX = "#mail";
+    public static final String USER_NAMESPACE_PREFIX = "#private";
     
     private static final char SQL_WILDCARD_CHAR = '%';
 
Index: store/src/main/java/org/apache/james/imap/store/StoreMessageManager.java
===================================================================
--- store/src/main/java/org/apache/james/imap/store/StoreMessageManager.java	(Revision 960168)
+++ store/src/main/java/org/apache/james/imap/store/StoreMessageManager.java	(Arbeitskopie)
@@ -72,7 +72,7 @@
  * 
  *
  */
-public abstract class StoreMessageManager<Id> implements org.apache.james.imap.mailbox.Mailbox, StoreConstants {
+public abstract class StoreMessageManager<Id> implements org.apache.james.imap.mailbox.Mailbox {
 
     private static final int INITIAL_SIZE_FLAGS = 32;
 
Index: store/src/main/java/org/apache/james/imap/store/StoreMailboxManager.java
===================================================================
--- store/src/main/java/org/apache/james/imap/store/StoreMailboxManager.java	(Revision 960168)
+++ store/src/main/java/org/apache/james/imap/store/StoreMailboxManager.java	(Arbeitskopie)
@@ -29,6 +29,7 @@
 import org.apache.commons.logging.Log;
 import org.apache.james.imap.api.AbstractLogEnabled;
 import org.apache.james.imap.mailbox.BadCredentialsException;
+import org.apache.james.imap.mailbox.MailboxConstants;
 import org.apache.james.imap.mailbox.MailboxException;
 import org.apache.james.imap.mailbox.MailboxExistsException;
 import org.apache.james.imap.mailbox.MailboxListener;
@@ -56,7 +57,7 @@
  *
  * @param <Id>
  */
-public abstract class StoreMailboxManager<Id> extends AbstractLogEnabled implements MailboxManager, StoreConstants {
+public abstract class StoreMailboxManager<Id> extends AbstractLogEnabled implements MailboxManager {
     
     public static final char SQL_WILDCARD_CHAR = '%';
 
@@ -73,7 +74,7 @@
     private UidConsumer<Id> consumer;
     
     public StoreMailboxManager(MailboxSessionMapperFactory<Id> mailboxSessionMapperFactory, final Authenticator authenticator, final Subscriber subscriber, final UidConsumer<Id> consumer) {
-        this(mailboxSessionMapperFactory, authenticator, subscriber, consumer, DEFAULT_FOLDER_DELIMITER);
+        this(mailboxSessionMapperFactory, authenticator, subscriber, consumer, MailboxConstants.DEFAULT_DELIMITER);
     }
 
     
@@ -381,7 +382,7 @@
         if (mailboxPath.length() > 0 && mailboxPath.charAt(0) != delimiter) {
             mailboxPath = delimiter + mailboxPath;
         }
-        final String result = USER_NAMESPACE_PREFIX + delimiter + userName
+        final String result = MailboxConstants.USER_NAMESPACE + delimiter + userName
         + mailboxPath;
         return result;
     }
@@ -458,14 +459,6 @@
         return delimiter;
     }
 
-    /*
-     * (non-Javadoc)
-     * @see org.apache.james.imap.mailbox.MailboxManager#getUserNameSpacePrefix()
-     */
-    public String getUserNameSpacePrefix() {
-        return USER_NAMESPACE_PREFIX;
-    }
-
     /**
      * End processing of Request for session
      */
Index: store/src/main/java/org/apache/james/imap/store/StoreConstants.java
===================================================================
--- store/src/main/java/org/apache/james/imap/store/StoreConstants.java	(Revision 960168)
+++ store/src/main/java/org/apache/james/imap/store/StoreConstants.java	(Arbeitskopie)
@@ -1,38 +0,0 @@
-/****************************************************************
- * Licensed to the Apache Software Foundation (ASF) under one   *
- * or more contributor license agreements.  See the NOTICE file *
- * distributed with this work for additional information        *
- * regarding copyright ownership.  The ASF licenses this file   *
- * to you under the Apache License, Version 2.0 (the            *
- * "License"); you may not use this file except in compliance   *
- * with the License.  You may obtain a copy of the License at   *
- *                                                              *
- *   http://www.apache.org/licenses/LICENSE-2.0                 *
- *                                                              *
- * Unless required by applicable law or agreed to in writing,   *
- * software distributed under the License is distributed on an  *
- * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY       *
- * KIND, either express or implied.  See the License for the    *
- * specific language governing permissions and limitations      *
- * under the License.                                           *
- ****************************************************************/
-package org.apache.james.imap.store;
-
-/**
- * Constants which are used in the Store module
- * 
- *
- */
-public interface StoreConstants {
-
-    /**
-     * The default delimiter used to seperated parent/child folders
-     */
-    public static final char DEFAULT_FOLDER_DELIMITER = '.';
-
-    /**
-     * Prefix which mark the user namespace
-     */
-    public static final String USER_NAMESPACE_PREFIX = "#mail";
-
-}
Index: processor/src/main/java/org/apache/james/imap/processor/ListProcessor.java
===================================================================
--- processor/src/main/java/org/apache/james/imap/processor/ListProcessor.java	(Revision 960168)
+++ processor/src/main/java/org/apache/james/imap/processor/ListProcessor.java	(Arbeitskopie)
@@ -30,6 +30,7 @@
 import org.apache.james.imap.api.message.response.StatusResponseFactory;
 import org.apache.james.imap.api.process.ImapProcessor;
 import org.apache.james.imap.api.process.ImapSession;
+import org.apache.james.imap.mailbox.MailboxConstants;
 import org.apache.james.imap.mailbox.MailboxException;
 import org.apache.james.imap.mailbox.MailboxManager;
 import org.apache.james.imap.mailbox.MailboxMetaData;
@@ -79,7 +80,7 @@
             final List<MailboxMetaData> results;
 
             final String user = ImapSessionUtils.getUserName(session);
-            final String personalNamespace = ImapConstants.USER_NAMESPACE
+            final String personalNamespace = MailboxConstants.USER_NAMESPACE
                     + ImapConstants.HIERARCHY_DELIMITER_CHAR + user;
 
             if (mailboxPattern.length() == 0) {
Index: memory/src/main/java/org/apache/james/imap/inmemory/InMemoryMailboxSessionMapperFactory.java
===================================================================
--- memory/src/main/java/org/apache/james/imap/inmemory/InMemoryMailboxSessionMapperFactory.java	(Revision 960168)
+++ memory/src/main/java/org/apache/james/imap/inmemory/InMemoryMailboxSessionMapperFactory.java	(Arbeitskopie)
@@ -21,17 +21,17 @@
 import org.apache.james.imap.inmemory.mail.InMemoryMailboxMapper;
 import org.apache.james.imap.inmemory.mail.InMemoryMessageMapper;
 import org.apache.james.imap.inmemory.user.InMemorySubscriptionMapper;
+import org.apache.james.imap.mailbox.MailboxConstants;
 import org.apache.james.imap.mailbox.MailboxException;
 import org.apache.james.imap.mailbox.MailboxSession;
 import org.apache.james.imap.mailbox.SubscriptionException;
 import org.apache.james.imap.store.MailboxSessionMapperFactory;
-import org.apache.james.imap.store.StoreConstants;
 import org.apache.james.imap.store.mail.MailboxMapper;
 import org.apache.james.imap.store.mail.MessageMapper;
 import org.apache.james.imap.store.transaction.TransactionalMapper;
 import org.apache.james.imap.store.user.SubscriptionMapper;
 
-public class InMemoryMailboxSessionMapperFactory extends MailboxSessionMapperFactory<Long> implements StoreConstants {
+public class InMemoryMailboxSessionMapperFactory extends MailboxSessionMapperFactory<Long> {
 
     private MailboxMapper<Long> mailboxMapper;
     private MessageMapper<Long> messageMapper;
@@ -44,7 +44,7 @@
     }
     
     public InMemoryMailboxSessionMapperFactory() {
-        this(DEFAULT_FOLDER_DELIMITER);
+        this(MailboxConstants.DEFAULT_DELIMITER);
     }
 
     @Override
Index: mailbox/src/main/java/org/apache/james/imap/mailbox/MailboxManager.java
===================================================================
--- mailbox/src/main/java/org/apache/james/imap/mailbox/MailboxManager.java	(Revision 960168)
+++ mailbox/src/main/java/org/apache/james/imap/mailbox/MailboxManager.java	(Arbeitskopie)
@@ -68,13 +68,6 @@
     char getDelimiter();
     
     /**
-     * Return the prefix for the namespace
-     * 
-     * @return namespacePrefix
-     */
-    String getUserNameSpacePrefix();
-    
-    /**
      * <p>
      * Resolves a path for the given user.
      * </p>
Index: mailbox/src/main/java/org/apache/james/imap/mailbox/MailboxConstants.java
===================================================================
--- mailbox/src/main/java/org/apache/james/imap/mailbox/MailboxConstants.java	(Revision 960168)
+++ mailbox/src/main/java/org/apache/james/imap/mailbox/MailboxConstants.java	(Arbeitskopie)
@@ -19,10 +19,17 @@
 
 package org.apache.james.imap.mailbox;
 
-public interface Constants {
+public interface MailboxConstants {
 
     public final long UID_INFINITY = -1;
 
     public final int MSN_INFINITY = -1;
 
+    public static final String USER_NAMESPACE = "#private";
+
+    /**
+     * The default delimiter used to seperated parent/child folders
+     */
+    public static final char DEFAULT_DELIMITER = '.';
+
 }
Index: mailbox/src/main/java/org/apache/james/imap/mailbox/Constants.java
===================================================================
--- mailbox/src/main/java/org/apache/james/imap/mailbox/Constants.java	(Revision 960168)
+++ mailbox/src/main/java/org/apache/james/imap/mailbox/Constants.java	(Arbeitskopie)
@@ -1,28 +0,0 @@
-/****************************************************************
- * Licensed to the Apache Software Foundation (ASF) under one   *
- * or more contributor license agreements.  See the NOTICE file *
- * distributed with this work for additional information        *
- * regarding copyright ownership.  The ASF licenses this file   *
- * to you under the Apache License, Version 2.0 (the            *
- * "License"); you may not use this file except in compliance   *
- * with the License.  You may obtain a copy of the License at   *
- *                                                              *
- *   http://www.apache.org/licenses/LICENSE-2.0                 *
- *                                                              *
- * Unless required by applicable law or agreed to in writing,   *
- * software distributed under the License is distributed on an  *
- * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY       *
- * KIND, either express or implied.  See the License for the    *
- * specific language governing permissions and limitations      *
- * under the License.                                           *
- ****************************************************************/
-
-package org.apache.james.imap.mailbox;
-
-public interface Constants {
-
-    public final long UID_INFINITY = -1;
-
-    public final int MSN_INFINITY = -1;
-
-}
Index: jpa/src/main/java/org/apache/james/imap/jpa/JPAMailboxSessionMapperFactory.java
===================================================================
--- jpa/src/main/java/org/apache/james/imap/jpa/JPAMailboxSessionMapperFactory.java	(Revision 960168)
+++ jpa/src/main/java/org/apache/james/imap/jpa/JPAMailboxSessionMapperFactory.java	(Arbeitskopie)
@@ -24,9 +24,9 @@
 import org.apache.james.imap.jpa.mail.JPAMailboxMapper;
 import org.apache.james.imap.jpa.mail.JPAMessageMapper;
 import org.apache.james.imap.jpa.user.JPASubscriptionMapper;
+import org.apache.james.imap.mailbox.MailboxConstants;
 import org.apache.james.imap.mailbox.MailboxSession;
 import org.apache.james.imap.store.MailboxSessionMapperFactory;
-import org.apache.james.imap.store.StoreConstants;
 import org.apache.james.imap.store.mail.MailboxMapper;
 import org.apache.james.imap.store.mail.MessageMapper;
 import org.apache.james.imap.store.user.SubscriptionMapper;
@@ -35,13 +35,13 @@
  * JPA implementation of {@link MailboxSessionMapperFactory}
  *
  */
-public class JPAMailboxSessionMapperFactory extends MailboxSessionMapperFactory<Long> implements StoreConstants{
+public class JPAMailboxSessionMapperFactory extends MailboxSessionMapperFactory<Long> {
 
     private final EntityManagerFactory entityManagerFactory;
     private final char delimiter;
 
     public JPAMailboxSessionMapperFactory(EntityManagerFactory entityManagerFactory) {
-        this(entityManagerFactory, DEFAULT_FOLDER_DELIMITER);
+        this(entityManagerFactory, MailboxConstants.DEFAULT_DELIMITER);
     }
 
     public JPAMailboxSessionMapperFactory(EntityManagerFactory entityManagerFactory, char delimiter) {
Index: jcr/src/main/java/org/apache/james/imap/jcr/user/JCRSubscriptionMapper.java
===================================================================
--- jcr/src/main/java/org/apache/james/imap/jcr/user/JCRSubscriptionMapper.java	(Revision 960168)
+++ jcr/src/main/java/org/apache/james/imap/jcr/user/JCRSubscriptionMapper.java	(Arbeitskopie)
@@ -36,13 +36,12 @@
 import org.apache.jackrabbit.util.Text;
 import org.apache.james.imap.api.display.HumanReadableText;
 import org.apache.james.imap.jcr.AbstractJCRScalingMapper;
-import org.apache.james.imap.jcr.JCRImapConstants;
 import org.apache.james.imap.jcr.MailboxSessionJCRRepository;
 import org.apache.james.imap.jcr.NodeLocker;
 import org.apache.james.imap.jcr.user.model.JCRSubscription;
+import org.apache.james.imap.mailbox.MailboxConstants;
 import org.apache.james.imap.mailbox.MailboxSession;
 import org.apache.james.imap.mailbox.SubscriptionException;
-import org.apache.james.imap.store.StoreConstants;
 import org.apache.james.imap.store.user.SubscriptionMapper;
 import org.apache.james.imap.store.user.model.Subscription;
 
@@ -50,7 +49,7 @@
  * JCR implementation of a SubscriptionManager
  * 
  */
-public class JCRSubscriptionMapper extends AbstractJCRScalingMapper implements SubscriptionMapper, StoreConstants {
+public class JCRSubscriptionMapper extends AbstractJCRScalingMapper implements SubscriptionMapper {
 
     public JCRSubscriptionMapper(final MailboxSessionJCRRepository repos, MailboxSession session, final NodeLocker locker, final int scaling, final Log log) {
         super(repos,session, locker, scaling, log);
@@ -176,7 +175,7 @@
             // its a new subscription
             if (sub == null) {
                 node = JcrUtils.getOrAddNode(getSession().getRootNode(), MAILBOXES_PATH);
-                node = JcrUtils.getOrAddNode(node, Text.escapeIllegalJcrChars(StoreConstants.USER_NAMESPACE_PREFIX));
+                node = JcrUtils.getOrAddNode(node, Text.escapeIllegalJcrChars(MailboxConstants.USER_NAMESPACE));
 
                 // This is needed to minimize the child nodes a bit
                 node = createUserPathStructure(node, Text.escapeIllegalJcrChars(username));
Index: jcr/src/main/java/org/apache/james/imap/jcr/JCRMailboxSessionMapperFactory.java
===================================================================
--- jcr/src/main/java/org/apache/james/imap/jcr/JCRMailboxSessionMapperFactory.java	(Revision 960168)
+++ jcr/src/main/java/org/apache/james/imap/jcr/JCRMailboxSessionMapperFactory.java	(Arbeitskopie)
@@ -24,11 +24,11 @@
 import org.apache.james.imap.jcr.mail.JCRMessageMapper;
 import org.apache.james.imap.jcr.user.JCRSubscriptionMapper;
 
+import org.apache.james.imap.mailbox.MailboxConstants;
 import org.apache.james.imap.mailbox.MailboxException;
 import org.apache.james.imap.mailbox.MailboxSession;
 import org.apache.james.imap.mailbox.SubscriptionException;
 import org.apache.james.imap.store.MailboxSessionMapperFactory;
-import org.apache.james.imap.store.StoreConstants;
 import org.apache.james.imap.store.mail.MailboxMapper;
 import org.apache.james.imap.store.mail.MessageMapper;
 import org.apache.james.imap.store.user.SubscriptionMapper;
@@ -38,7 +38,7 @@
  * 
  *
  */
-public class JCRMailboxSessionMapperFactory extends MailboxSessionMapperFactory<String> implements StoreConstants{
+public class JCRMailboxSessionMapperFactory extends MailboxSessionMapperFactory<String> {
 
     private final MailboxSessionJCRRepository repository;
     private final Log logger;
@@ -47,7 +47,7 @@
     private final int DEFAULT_SCALING = 2;
 
     public JCRMailboxSessionMapperFactory(final MailboxSessionJCRRepository repository, final NodeLocker locker) {
-        this(repository, locker, DEFAULT_FOLDER_DELIMITER);
+        this(repository, locker, MailboxConstants.DEFAULT_DELIMITER);
     }
 
     public JCRMailboxSessionMapperFactory(final MailboxSessionJCRRepository repository, final NodeLocker locker, final char delimiter) {
Index: jcr/src/main/java/org/apache/james/imap/jcr/JCRMailboxManager.java
===================================================================
--- jcr/src/main/java/org/apache/james/imap/jcr/JCRMailboxManager.java	(Revision 960168)
+++ jcr/src/main/java/org/apache/james/imap/jcr/JCRMailboxManager.java	(Arbeitskopie)
@@ -36,9 +36,8 @@
 /**
  * JCR implementation of a MailboxManager
  * 
- * 
  */
-public class JCRMailboxManager extends StoreMailboxManager<String> implements JCRImapConstants{
+public class JCRMailboxManager extends StoreMailboxManager<String> implements JCRImapConstants {
 
     private final JCRMailboxSessionMapperFactory mapperFactory;
     private final Log logger = LogFactory.getLog(JCRMailboxManager.class);
Index: deployment/src/test/java/org/apache/james/imap/functional/AbstractStressTest.java
===================================================================
--- deployment/src/test/java/org/apache/james/imap/functional/AbstractStressTest.java	(Revision 960168)
+++ deployment/src/test/java/org/apache/james/imap/functional/AbstractStressTest.java	(Arbeitskopie)
@@ -29,6 +29,7 @@
 
 import org.apache.commons.logging.impl.SimpleLog;
 import org.apache.james.imap.mailbox.Mailbox;
+import org.apache.james.imap.mailbox.MailboxConstants;
 import org.apache.james.imap.mailbox.MailboxException;
 import org.apache.james.imap.mailbox.MailboxSession;
 import org.apache.james.imap.store.StoreMailboxManager;
@@ -49,7 +50,7 @@
         
         MailboxSession session = getMailboxManager().createSystemSession("test", new SimpleLog("Test"));
         getMailboxManager().startProcessingRequest(session);
-        getMailboxManager().createMailbox(StoreMailboxManager.USER_NAMESPACE_PREFIX +".username.INBOX", session);
+        getMailboxManager().createMailbox(MailboxConstants.USER_NAMESPACE +".username.INBOX", session);
         getMailboxManager().endProcessingRequest(session);
         getMailboxManager().logout(session, false);
         final AtomicBoolean fail = new AtomicBoolean(false);
@@ -68,7 +69,7 @@
 
                     try {
                         getMailboxManager().startProcessingRequest(session);
-                        Mailbox m = getMailboxManager().getMailbox(StoreMailboxManager.USER_NAMESPACE_PREFIX +".username.INBOX", session);
+                        Mailbox m = getMailboxManager().getMailbox(MailboxConstants.USER_NAMESPACE +".username.INBOX", session);
                         
                         System.out.println("Append message with uid=" + m.appendMessage(new ByteArrayInputStream("Subject: test\r\n\r\ntestmail".getBytes()), new Date(), session, false, new Flags()));
                         getMailboxManager().endProcessingRequest(session);
Index: api/src/main/java/org/apache/james/imap/api/ImapConstants.java
===================================================================
--- api/src/main/java/org/apache/james/imap/api/ImapConstants.java	(Revision 960168)
+++ api/src/main/java/org/apache/james/imap/api/ImapConstants.java	(Arbeitskopie)
@@ -21,17 +21,17 @@
 
 public interface ImapConstants {
     // Basic response types
-    String OK = "OK";
+    public static final String OK = "OK";
 
-    String NO = "NO";
+    public static final String NO = "NO";
 
-    String BAD = "BAD";
+    public static final String BAD = "BAD";
 
-    String BYE = "BYE";
+    public static final String BYE = "BYE";
 
-    String UNTAGGED = "*";
+    public static final String UNTAGGED = "*";
 
-    String SP = " ";
+    public static final String SP = " ";
 
     public static final String NIL = "NIL";
 
@@ -95,61 +95,59 @@
 
     public static final char DQUOTE = '\"';
 
-    String VERSION = "IMAP4rev1";
+    public static final String VERSION = "IMAP4rev1";
 
-    String SUPPORTS_LITERAL_PLUS = "LITERAL+";
+    public static final String SUPPORTS_LITERAL_PLUS = "LITERAL+";
     
     public static final String SUPPORTS_RFC3348 = "CHILDREN";
     
     public static final String SUPPORTS_NAMESPACES = "NAMESPACE";
 
-    String USER_NAMESPACE = "#mail";
+    public static final char HIERARCHY_DELIMITER_CHAR = '.';
 
-    char HIERARCHY_DELIMITER_CHAR = '.';
+    public static final char NAMESPACE_PREFIX_CHAR = '#';
 
-    final char NAMESPACE_PREFIX_CHAR = '#';
+    public static final String HIERARCHY_DELIMITER = String.valueOf(HIERARCHY_DELIMITER_CHAR);
 
-    String HIERARCHY_DELIMITER = String.valueOf(HIERARCHY_DELIMITER_CHAR);
+    public static final String NAMESPACE_PREFIX = String.valueOf(NAMESPACE_PREFIX_CHAR);
 
-    final String NAMESPACE_PREFIX = String.valueOf(NAMESPACE_PREFIX_CHAR);
+    public static final String INBOX_NAME = "INBOX";
 
-    String INBOX_NAME = "INBOX";
+    public static final String MIME_TYPE_TEXT = "TEXT";
 
-    public String MIME_TYPE_TEXT = "TEXT";
+    public static final String MIME_TYPE_MULTIPART = "MULTIPART";
 
-    public String MIME_TYPE_MULTIPART = "MULTIPART";
+    public static final String MIME_SUBTYPE_PLAIN = "PLAIN";
 
-    public String MIME_SUBTYPE_PLAIN = "PLAIN";
+    public static final String MIME_TYPE_MESSAGE = "MESSAGE";
 
-    public String MIME_TYPE_MESSAGE = "MESSAGE";
+    public static final String MIME_SUBTYPE_RFC822 = "RFC822";
 
-    public String MIME_SUBTYPE_RFC822 = "RFC822";
-
     // RFC822 CONSTANTS:
     // TODO: Consider switching to standard case
-    public String RFC822_BCC = "Bcc";
+    public static final String RFC822_BCC = "Bcc";
 
-    public String RFC822_CC = "Cc";
+    public static final String RFC822_CC = "Cc";
 
-    public String RFC822_FROM = "From";
+    public static final String RFC822_FROM = "From";
 
-    public String RFC822_DATE = "Date";
+    public static final String RFC822_DATE = "Date";
 
-    public String RFC822_SUBJECT = "Subject";
+    public static final String RFC822_SUBJECT = "Subject";
 
-    public String RFC822_TO = "To";
+    public static final String RFC822_TO = "To";
 
-    public String RFC822_SENDER = "Sender";
+    public static final String RFC822_SENDER = "Sender";
 
-    public String RFC822_REPLY_TO = "Reply-To";
+    public static final String RFC822_REPLY_TO = "Reply-To";
 
-    public String RFC822_IN_REPLY_TO = "In-Reply-To";
+    public static final String RFC822_IN_REPLY_TO = "In-Reply-To";
 
-    public String RFC822_MESSAGE_ID = "Message-ID";
+    public static final String RFC822_MESSAGE_ID = "Message-ID";
 
-    public String NAME_ATTRIBUTE_HAS_CHILDREN = "\\HasChildren";
+    public static final String NAME_ATTRIBUTE_HAS_CHILDREN = "\\HasChildren";
 
-    public String NAME_ATTRIBUTE_HAS_NO_CHILDREN = "\\HasNoChildren";
+    public static final String NAME_ATTRIBUTE_HAS_NO_CHILDREN = "\\HasNoChildren";
 
     public static final String NAMESPACE_COMMAND_NAME = "NAMESPACE";
 
