Handle deleted maps propertly.

wise-webapp/src/main/java/com/wisemapping/exceptions/ClientException.java

@@ -18,7 +18,11 @@ abstract public class ClientException extends WiseMappingException {
     String getMsgBundleKey();
 
     public String getMessage(@NotNull final MessageSource messageSource, final @NotNull Locale locale) {
-        return messageSource.getMessage(this.getMsgBundleKey(), this.getMsgBundleArgs(), locale);
+        String message = messageSource.getMessage(this.getMsgBundleKey(), this.getMsgBundleArgs(), locale);
+        if(message==null){
+            message = this.getMessage();
+        }
+        return message;
     }
 
     protected  Object[] getMsgBundleArgs(){

wise-webapp/src/main/java/com/wisemapping/exceptions/MapCouldNotFoundException.java

@@ -0,0 +1,38 @@
+/*
+*    Copyright [2012] [wisemapping]
+*
+*   Licensed under WiseMapping Public License, Version 1.0 (the "License").
+*   It is basically the Apache License, Version 2.0 (the "License") plus the
+*   "powered by wisemapping" text requirement on every single page;
+*   you may not use this file except in compliance with the License.
+*   You may obtain a copy of the license at
+*
+*       http://www.wisemapping.org/license
+*
+*   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 com.wisemapping.exceptions;
+
+import org.jetbrains.annotations.NotNull;
+
+public class MapCouldNotFoundException
+    extends ClientException
+{
+    public static final String MSG_KEY = "MAP_CAN_NOT_BE_FOUND";
+
+    public MapCouldNotFoundException(@NotNull String msg)
+    {
+        super(msg,Severity.FATAL);
+    }
+
+    @NotNull
+    @Override
+    protected String getMsgBundleKey() {
+        return MSG_KEY;
+    }
+}