Replaced #printStackTrace with Log.error().

git-svn-id: http://svn.igniterealtime.org/svn/repos/messenger/trunk@1316 b35dd754-fafc-0310-a699-88a17e54d16e

src/java/org/jivesoftware/messenger/muc/spi/MUCRoomImpl.java

@@ -1538,7 +1538,7 @@ public class MUCRoomImpl implements MUCRoom {
                                 LocaleUtils.getLocalizedString("muc.roomIsNowMembersOnly")));
                     }
                     catch (NotAllowedException e) {
-                        e.printStackTrace();
+                        Log.error(e);
                     }
                 }
             }

src/java/org/jivesoftware/messenger/roster/RosterItemProvider.java

@@ -340,7 +340,7 @@ public class RosterItemProvider {
                     pstmt.executeUpdate();
                 }
                 catch (SQLException e) {
-                    e.printStackTrace();
+                    Log.error(e);
                 }
             }
         }

src/web/group-create.jsp

@@ -112,11 +112,9 @@
                 return;
             }
             catch (GroupAlreadyExistsException e) {
-                e.printStackTrace();
                 errors.put("groupAlreadyExists", "");
             }
             catch (Exception e) {
-                e.printStackTrace();
                 errors.put("general", "");
                 Log.error(e);
             }