*) Bugfix for Blacklist_p.java

- avoid nullpointerexception

git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@2475 6c8d7289-2bf4-0310-a012-ef5d649a1542

htroot/Blacklist_p.java

@@ -196,7 +196,7 @@ public class Blacklist_p {
                 
                 // get the entry that should be deleted
                 String oldEntry = (String)post.get("selectedEntry");
-                if (oldEntry.trim().length() == 0) {
+                if (oldEntry == null || oldEntry.trim().length() == 0) {
                     prop.put("LOCATION",header.get("PATH") + "?selectList=&selectedListName=" + blacklistToUse);
                     return prop;
                 }