diff --git a/source/de/anomic/plasma/plasmaSwitchboard.java b/source/de/anomic/plasma/plasmaSwitchboard.java
index 87dac0c31..47eb2c69c 100644
--- a/source/de/anomic/plasma/plasmaSwitchboard.java
+++ b/source/de/anomic/plasma/plasmaSwitchboard.java
@@ -1047,13 +1047,19 @@ public final class plasmaSwitchboard extends serverAbstractSwitch implements ser
 
         String reason = null; // failure reason
 
-	// strange error
+	// strange errors
 	if (nexturlString == null) {
 	    reason = "denied_(url_null)";
             log.logError("Wrong URL in stackCrawl: url=null");
 	    return reason;
 	}
-
+        /*
+        if (profile == null) {
+            reason = "denied_(profile_null)";
+            log.logError("Wrong Profile for stackCrawl: profile=null");
+	    return reason;
+        }
+        */
         URL nexturl = null;
         if ((initiatorHash == null) || (initiatorHash.length() == 0)) initiatorHash = plasmaURL.dummyHash;
         String referrerHash = plasmaURL.urlHash(referrerString);
@@ -1066,7 +1072,7 @@ public final class plasmaSwitchboard extends serverAbstractSwitch implements ser
         }
         
         // filter deny
-        if ((currentdepth > 0) && (!(nexturlString.matches(profile.generalFilter())))) {
+        if ((currentdepth > 0) && (profile != null) && (!(nexturlString.matches(profile.generalFilter())))) {
             reason = "denied_(does_not_match_filter)";
             urlPool.errorURL.newEntry(nexturl, referrerHash, initiatorHash, yacyCore.seedDB.mySeed.hash,
                     name, reason, new bitfield(plasmaURL.urlFlagLength), false);
@@ -1082,7 +1088,7 @@ public final class plasmaSwitchboard extends serverAbstractSwitch implements ser
         }
 
         // deny post properties
-        if ((plasmaHTCache.isPOST(nexturlString)) && (!(profile.crawlingQ())))  {
+        if ((plasmaHTCache.isPOST(nexturlString)) && (profile != null) && (!(profile.crawlingQ())))  {
             reason = "denied_(post_url)";
             urlPool.errorURL.newEntry(nexturl, referrerHash, initiatorHash, yacyCore.seedDB.mySeed.hash,
                                   name, reason, new bitfield(plasmaURL.urlFlagLength), false);
@@ -1102,6 +1108,7 @@ public final class plasmaSwitchboard extends serverAbstractSwitch implements ser
         // store information
         boolean local = ((initiatorHash.equals(plasmaURL.dummyHash)) || (initiatorHash.equals(yacyCore.seedDB.mySeed.hash)));
         boolean global = 
+            (profile != null) &&
             (profile.remoteIndexing()) /* granted */ &&
             (currentdepth == profile.generalDepth()) /* leaf node */ && 
             (initiatorHash.equals(yacyCore.seedDB.mySeed.hash)) /* not proxy */ &&
@@ -1113,7 +1120,7 @@ public final class plasmaSwitchboard extends serverAbstractSwitch implements ser
                            loadDate, /* load date */
                            referrerHash, /* last url in crawling queue */
                            name, /* the anchor name */
-                           profile.handle(), 
+                           (profile == null) ? null : profile.handle(), 
                            currentdepth, /*depth so far*/
                            0, /*anchors, default value */
                            0, /*forkfactor, default value */
diff --git a/source/de/anomic/plasma/plasmaWordIndexDistribution.java b/source/de/anomic/plasma/plasmaWordIndexDistribution.java
index 749e6b178..ebeb8940c 100644
--- a/source/de/anomic/plasma/plasmaWordIndexDistribution.java
+++ b/source/de/anomic/plasma/plasmaWordIndexDistribution.java
@@ -227,10 +227,10 @@ public class plasmaWordIndexDistribution {
                     indexEntity.deleteComplete();
                 } else if (indexEntity.size() <= count) {
                     // take the whole entity
-                    // fist check if we know all urls
-                    urlEnum = indexEntity.elements(true);
-                    unknownURLEntries = new HashSet();
                     try {
+                        // fist check if we know all urls
+                        urlEnum = indexEntity.elements(true);
+                        unknownURLEntries = new HashSet();
                         while (urlEnum.hasMoreElements()) {
                             indexEntry = (plasmaWordIndexEntry) urlEnum.nextElement();
                             lurl = urlPool.loadedURL.getEntry(indexEntry.getUrlHash());
@@ -245,26 +245,26 @@ public class plasmaWordIndexDistribution {
                                 }
                             }
                         }
+                        // now delete all entries that have no url entry
+                        hashIter = unknownURLEntries.iterator();
+                        while (hashIter.hasNext()) {
+                            indexEntity.removeEntry((String) hashIter.next(), false);
+                        }
+                        // use whats remaining
+                        tmpEntities.add(indexEntity);
+                        log.logDebug("Selected whole index (" + indexEntity.size() + " URLs, " + unknownURLEntries.size() + " not bound) for word " + indexEntity.wordHash());
+                        count -= indexEntity.size();
                     } catch (kelondroException e) {
                         log.logError("plasmaWordIndexDistribution/1: deleted DB for word " + indexEntity.wordHash());
                         e.printStackTrace();
                         try {indexEntity.deleteComplete();} catch (IOException ee) {}
                     }
-                    // now delete all entries that have no url entry
-                    hashIter = unknownURLEntries.iterator();
-                    while (hashIter.hasNext()) {
-                        indexEntity.removeEntry((String) hashIter.next(), false);
-                    }
-                    // use whats remaining
-                    tmpEntities.add(indexEntity);
-                    log.logDebug("Selected whole index (" + indexEntity.size() + " URLs, " + unknownURLEntries.size() + " not bound) for word " + indexEntity.wordHash());
-                    count -= indexEntity.size();
                 } else {
                     // make an on-the-fly entity and insert values
                     tmpEntity = new plasmaWordIndexEntity(indexEntity.wordHash());
-                    urlEnum = indexEntity.elements(true);
-                    unknownURLEntries = new HashSet();
                     try {
+                        urlEnum = indexEntity.elements(true);
+                        unknownURLEntries = new HashSet();
                         while ((urlEnum.hasMoreElements()) && (count > 0)) {
                             indexEntry = (plasmaWordIndexEntry) urlEnum.nextElement();
                             lurl = urlPool.loadedURL.getEntry(indexEntry.getUrlHash());
@@ -281,19 +281,19 @@ public class plasmaWordIndexDistribution {
                                 }
                             }
                         }
+                        // now delete all entries that have no url entry
+                        hashIter = unknownURLEntries.iterator();
+                        while (hashIter.hasNext()) {
+                            indexEntity.removeEntry((String) hashIter.next(), true);
+                        }
+                        // use whats remaining
+                        log.logDebug("Selected partial index (" + tmpEntity.size() + " from " + indexEntity.size() +" URLs, " + unknownURLEntries.size() + " not bound) for word " + tmpEntity.wordHash());
+                        tmpEntities.add(tmpEntity);
                     } catch (kelondroException e) {
                         log.logError("plasmaWordIndexDistribution/2: deleted DB for word " + indexEntity.wordHash());
                         e.printStackTrace();
                         try {indexEntity.deleteComplete();} catch (IOException ee) {}
                     }
-                    // now delete all entries that have no url entry
-                    hashIter = unknownURLEntries.iterator();
-                    while (hashIter.hasNext()) {
-                        indexEntity.removeEntry((String) hashIter.next(), true);
-                    }
-                    // use whats remaining
-                    log.logDebug("Selected partial index (" + tmpEntity.size() + " from " + indexEntity.size() +" URLs, " + unknownURLEntries.size() + " not bound) for word " + tmpEntity.wordHash());
-                    tmpEntities.add(tmpEntity);
                     indexEntity.close(); // important: is not closed elswhere and cannot be deleted afterwards
                     indexEntity = null;
                 }
diff --git a/source/de/anomic/yacy/yacySeed.java b/source/de/anomic/yacy/yacySeed.java
index 9311e29b4..0304252cf 100644
--- a/source/de/anomic/yacy/yacySeed.java
+++ b/source/de/anomic/yacy/yacySeed.java
@@ -363,14 +363,17 @@ public class yacySeed {
     }
 
     public String toString() {
-	// set hash into seed code structure
-	dna.put("Hash", this.hash);
-	// generate string representation
-	String s = dna.toString();
-	// reconstruct original: hash is stored external
-	dna.remove("Hash");
-	// return string
-	return s;
+        String s = null;
+        synchronized (dna) {
+            // set hash into seed code structure
+            dna.put("Hash", this.hash);
+            // generate string representation
+            s = dna.toString();
+            // reconstruct original: hash is stored external
+            dna.remove("Hash");
+            // return string
+        }
+        return s;
     }
 
     public String genSeedStr(String key) {