diff --git a/source/net/yacy/cora/federate/opensearch/SRURSSConnector.java b/source/net/yacy/cora/federate/opensearch/SRURSSConnector.java
index b5b78a44e..ffaadf458 100644
--- a/source/net/yacy/cora/federate/opensearch/SRURSSConnector.java
+++ b/source/net/yacy/cora/federate/opensearch/SRURSSConnector.java
@@ -49,10 +49,9 @@ public class SRURSSConnector {
             final CacheStrategy verify,
             final boolean global,
             final ClientIdentification.Agent agent) {
-        final Thread job = new Thread() {
+        final Thread job = new Thread("searchSRURSS:" + urlBase) {
             @Override
             public void run() {
-                Thread.currentThread().setName("searchSRURSS:" + urlBase);
                 int startRecord = 0;
                 RSSMessage message;
                 int maximumRecords = maximumRecordsInit;
diff --git a/source/net/yacy/cora/federate/solr/connector/AbstractSolrConnector.java b/source/net/yacy/cora/federate/solr/connector/AbstractSolrConnector.java
index c6f4df49c..8a29a463c 100644
--- a/source/net/yacy/cora/federate/solr/connector/AbstractSolrConnector.java
+++ b/source/net/yacy/cora/federate/solr/connector/AbstractSolrConnector.java
@@ -206,10 +206,9 @@ public abstract class AbstractSolrConnector implements SolrConnector {
         final long endtime = maxtime < 0 || maxtime == Long.MAX_VALUE ? Long.MAX_VALUE : System.currentTimeMillis() + maxtime; // we know infinity!
         final Thread[] t = new Thread[concurrency];
         for (int i = 0; i < Math.max(1, concurrency); i++) {
-            t[i] = new Thread() {
+            t[i] = new Thread("AbstractSolrConnector:concurrentDocumentsByQueriesWithPrefetch(" + querystrings.size() + " queries, first: " + querystrings.iterator().next() + ")") {
                 @Override
                 public void run() {
-                    this.setName("AbstractSolrConnector:concurrentDocumentsByQueriesWithPrefetch(" + querystrings.size() + " queries, first: " + querystrings.iterator().next() + ")");
                     String nextID;
                     try {
                         while (System.currentTimeMillis() < endtime && (nextID = idQueue.take()) != AbstractSolrConnector.POISON_ID) {
diff --git a/source/net/yacy/cora/federate/solr/connector/MirrorSolrConnector.java b/source/net/yacy/cora/federate/solr/connector/MirrorSolrConnector.java
index 6c65b9202..b2a862373 100644
--- a/source/net/yacy/cora/federate/solr/connector/MirrorSolrConnector.java
+++ b/source/net/yacy/cora/federate/solr/connector/MirrorSolrConnector.java
@@ -357,20 +357,18 @@ public class MirrorSolrConnector extends AbstractSolrConnector implements SolrCo
             return this.solr1.getCountByQuery(querystring);
         }
         final AtomicLong count = new AtomicLong(0);
-        Thread t0 = new Thread() {
+        Thread t0 = new Thread("MirrorSolrConnector.getCountByQuery/t0") {
             @Override
             public void run() {
-                this.setName("MirrorSolrConnector.getCountByQuery/t0");
                 try {
                     count.addAndGet(MirrorSolrConnector.this.solr0.getCountByQuery(querystring));
                 } catch (final IOException e) {}
             }
         };
         t0.start();
-        Thread t1 = new Thread() {
+        Thread t1 = new Thread("MirrorSolrConnector.getCountByQuery/t1") {
             @Override
             public void run() {
-                this.setName("MirrorSolrConnector.getCountByQuery/t1");
                 try {
                     count.addAndGet(MirrorSolrConnector.this.solr1.getCountByQuery(querystring));
                 } catch (final IOException e) {}
diff --git a/source/net/yacy/cora/federate/solr/instance/ServerShard.java b/source/net/yacy/cora/federate/solr/instance/ServerShard.java
index 373f483f0..fc9329854 100644
--- a/source/net/yacy/cora/federate/solr/instance/ServerShard.java
+++ b/source/net/yacy/cora/federate/solr/instance/ServerShard.java
@@ -388,10 +388,9 @@ public class ServerShard extends SolrClient {
         final Collection<QueryResponse> qrl = new ConcurrentLinkedQueue<QueryResponse>();
         List<Thread> t = new ArrayList<Thread>();
         for (final SolrClient s: qs) {
-            Thread t0 = new Thread() {
+            Thread t0 = new Thread("ServerShard.query/1(" + params.toString() + ")") {
                 @Override
                 public void run() {
-                    this.setName("ServerShard.query/1(" + params.toString() + ")");
                     QueryResponse rsp;
                     try {
                         rsp = s.query(params);
@@ -427,10 +426,9 @@ public class ServerShard extends SolrClient {
         // concurrently call all shards
         List<Thread> t = new ArrayList<Thread>();
         for (final SolrClient s: qs) {
-            Thread t0 = new Thread() {
+            Thread t0 = new Thread("ServerShard.query/2(" + params.toString() + ")") {
                 @Override
                 public void run() {
-                    this.setName("ServerShard.query/2(" + params.toString() + ")");
                     QueryResponse rsp;
                     try {
                         rsp = s.query(params, method);
diff --git a/source/net/yacy/cora/protocol/Domains.java b/source/net/yacy/cora/protocol/Domains.java
index fa037329b..230771478 100644
--- a/source/net/yacy/cora/protocol/Domains.java
+++ b/source/net/yacy/cora/protocol/Domains.java
@@ -121,10 +121,9 @@ public class Domains {
         // if such a lookup blocks, it can cause that the static initiatializer does not finish fast
         // therefore we start the host name lookup as concurrent thread
         // meanwhile the host name is "127.0.0.1" which is not completely wrong
-        new Thread() {
+        new Thread("Domains: init") {
             @Override
             public void run() {
-                Thread.currentThread().setName("Domains: init");
                 // try to get local addresses from interfaces
                 try {
                     final Enumeration<NetworkInterface> nis = NetworkInterface.getNetworkInterfaces();
diff --git a/source/net/yacy/cora/protocol/ftp/FTPClient.java b/source/net/yacy/cora/protocol/ftp/FTPClient.java
index 063027575..5a2cf3a42 100644
--- a/source/net/yacy/cora/protocol/ftp/FTPClient.java
+++ b/source/net/yacy/cora/protocol/ftp/FTPClient.java
@@ -2556,11 +2556,10 @@ public class FTPClient {
         ftpClient.open(host, port);
         ftpClient.login(user, pw);
         final LinkedBlockingQueue<entryInfo> queue = new LinkedBlockingQueue<entryInfo>();
-        new Thread() {
+        new Thread("FTP.sitelist(" + host + ":" + port + ")") {
             @Override
             public void run() {
                 try {
-                    Thread.currentThread().setName("FTP.sitelist(" + host + ":" + port + ")");
                     sitelist(ftpClient, path, queue, depth);
                     ftpClient.quit();
                 } catch (final Exception e) {} finally {
diff --git a/source/net/yacy/cora/protocol/http/HTTPClient.java b/source/net/yacy/cora/protocol/http/HTTPClient.java
index 747052f2f..eb1837787 100644
--- a/source/net/yacy/cora/protocol/http/HTTPClient.java
+++ b/source/net/yacy/cora/protocol/http/HTTPClient.java
@@ -1122,8 +1122,7 @@ public class HTTPClient {
 	    private volatile boolean shutdown;
 	    
 	    public IdleConnectionMonitorThread(HttpClientConnectionManager connMgr) {
-	        super();
-	        this.setName("HTTPClient.IdleConnectionMonitorThread");
+	        super("HTTPClient.IdleConnectionMonitorThread");
 	        this.connMgr = connMgr;
 	    }
 
diff --git a/source/net/yacy/cora/sorting/Array.java b/source/net/yacy/cora/sorting/Array.java
index b39864e85..ffa7862d9 100644
--- a/source/net/yacy/cora/sorting/Array.java
+++ b/source/net/yacy/cora/sorting/Array.java
@@ -63,9 +63,13 @@ public class Array {
     }
 
     private static class SortJobWorker extends Thread {
+    	
+    	public SortJobWorker() {
+    		super("Array.SortJobWorker");
+    	}
+    	
         @Override
         public void run() {
-            this.setName("Array.SortJobWorker");
             SortJob<?> job;
             try {
                 while ((job = sortJobs.take()) != POISON_JOB_WORKER) {
diff --git a/source/net/yacy/cora/storage/Files.java b/source/net/yacy/cora/storage/Files.java
index 10da595f9..89f5e614e 100644
--- a/source/net/yacy/cora/storage/Files.java
+++ b/source/net/yacy/cora/storage/Files.java
@@ -80,10 +80,9 @@ public class Files {
 		final BlockingQueue<String> q = new LinkedBlockingQueue<String>();
 		final InputStream is = read(f);
 		final BufferedReader br = new BufferedReader(new InputStreamReader(is, StandardCharsets.UTF_8));
-		Thread t = new Thread() {
+		Thread t = new Thread("Files.concurrentLineReader:" + f) {
 			@Override
             public void run() {
-                Thread.currentThread().setName("Files.concurrentLineReader:" + f);
 				String line;
 				try {
 					while ((line = br.readLine()) != null) {
diff --git a/source/net/yacy/crawler/CrawlStacker.java b/source/net/yacy/crawler/CrawlStacker.java
index 6e1a86b50..42018e7ce 100644
--- a/source/net/yacy/crawler/CrawlStacker.java
+++ b/source/net/yacy/crawler/CrawlStacker.java
@@ -271,10 +271,9 @@ public final class CrawlStacker implements WorkflowTask<Request>{
         final String host = ftpURL.getHost();
         final int port = ftpURL.getPort();
         final int pathParts = ftpURL.getPaths().length;
-        new Thread() {
+        new Thread("enqueueEntriesFTP") {
             @Override
             public void run() {
-                Thread.currentThread().setName("enqueueEntriesFTP");
                 BlockingQueue<FTPClient.entryInfo> queue;
                 try {
                     queue = FTPClient.sitelist(host, port, user, pw, ftpURL.getPath(), profile.depth());
diff --git a/source/net/yacy/crawler/data/Cache.java b/source/net/yacy/crawler/data/Cache.java
index 5c95175ba..8a370f2db 100644
--- a/source/net/yacy/crawler/data/Cache.java
+++ b/source/net/yacy/crawler/data/Cache.java
@@ -148,10 +148,9 @@ public final class Cache {
         // We do this as a concurrent job only once after start-up silently
         if (responseHeaderDB.size() != fileDB.size()) {
             ConcurrentLog.warn("Cache", "file and metadata size is not equal, starting a cleanup thread...");
-            Thread startupCleanup = new Thread() {
+            Thread startupCleanup = new Thread("Cache startupCleanup") {
                 @Override
                 public void run() {
-                    Thread.currentThread().setName("Cache startupCleanup");
                     // enumerate the responseHeaderDB and find out all entries that are not inside the fileDBunbuffered
                     BlockingQueue<byte[]> q = responseHeaderDB.keyQueue(1000);
                     final HandleSet delkeys = new RowHandleSet(Word.commonHashLength, Base64Order.enhancedCoder, 1);
diff --git a/source/net/yacy/crawler/data/Transactions.java b/source/net/yacy/crawler/data/Transactions.java
index f5b777a8c..bdf679bc2 100644
--- a/source/net/yacy/crawler/data/Transactions.java
+++ b/source/net/yacy/crawler/data/Transactions.java
@@ -211,10 +211,9 @@ public class Transactions {
         final String urls = url.toNormalform(true);
         final File pdfPath = Transactions.definePath(url, depth, date, "pdf", Transactions.State.INVENTORY);
         if (concurrency && executorRunning.intValue() < Runtime.getRuntime().availableProcessors()) {
-            Thread t = new Thread(){
+            Thread t = new Thread("Transactions.store"){
                 @Override
                 public void run() {
-                	this.setName("Transactions.store");
                     executorRunning.incrementAndGet();
                     try {
                         Html2Image.writeWkhtmltopdf(urls, proxy, ClientIdentification.browserAgent.userAgent, acceptLanguage, pdfPath);
diff --git a/source/net/yacy/crawler/robots/RobotsTxt.java b/source/net/yacy/crawler/robots/RobotsTxt.java
index 934be322a..3082b576f 100644
--- a/source/net/yacy/crawler/robots/RobotsTxt.java
+++ b/source/net/yacy/crawler/robots/RobotsTxt.java
@@ -235,10 +235,9 @@ public class RobotsTxt {
             return;
         }
         if (robotsTable != null && robotsTable.containsKey(robotsTable.encodedKey(urlHostPort))) return;
-        Thread t = new Thread() {
+        Thread t = new Thread("Robots.txt:ensureExist(" + theURL.toNormalform(true) + ")") {
             @Override
             public void run(){
-                this.setName("Robots.txt:ensureExist(" + theURL.toNormalform(true) + ")");
                 // make or get a synchronization object
                 DomSync syncObj = RobotsTxt.this.syncObjects.get(urlHostPort);
                 if (syncObj == null) {
diff --git a/source/net/yacy/document/content/dao/PhpBB3Dao.java b/source/net/yacy/document/content/dao/PhpBB3Dao.java
index a6bb5a9de..64304b29b 100644
--- a/source/net/yacy/document/content/dao/PhpBB3Dao.java
+++ b/source/net/yacy/document/content/dao/PhpBB3Dao.java
@@ -177,10 +177,9 @@ public class PhpBB3Dao implements Dao {
     private BlockingQueue<DCEntry> toQueue(final StringBuilder sql, int queueSize) {
         // execute the query and push entries to a queue concurrently
         final BlockingQueue<DCEntry> queue = new ArrayBlockingQueue<DCEntry>(queueSize);
-        Thread dbreader = new Thread() {
+        Thread dbreader = new Thread("PhpBB3Dao.toQueue") {
             @Override
             public void run() {
-                Thread.currentThread().setName("PhpBB3Dao.toQueue");
                 Statement stmt = null;
                 ResultSet rs = null;
                 try {
diff --git a/source/net/yacy/document/parser/pdfParser.java b/source/net/yacy/document/parser/pdfParser.java
index ef0db9f1c..ef3587646 100644
--- a/source/net/yacy/document/parser/pdfParser.java
+++ b/source/net/yacy/document/parser/pdfParser.java
@@ -206,10 +206,9 @@ public class pdfParser extends AbstractParser implements Parser {
                     stripper.setEndPage(Integer.MAX_VALUE); // set to default
                     // we start the pdf parsing in a separate thread to ensure that it can be terminated
                     final PDDocument pdfDocC = pdfDoc;
-                    final Thread t = new Thread() {
+                    final Thread t = new Thread("pdfParser.getText:" + location) {
                         @Override
                         public void run() {
-                            Thread.currentThread().setName("pdfParser.getText:" + location);
                             try {
                                 writer.append(stripper.getText(pdfDocC));
                             } catch (final Throwable e) {}
diff --git a/source/net/yacy/gui/YaCyApp.java b/source/net/yacy/gui/YaCyApp.java
index 071bb80a4..76f2b3961 100644
--- a/source/net/yacy/gui/YaCyApp.java
+++ b/source/net/yacy/gui/YaCyApp.java
@@ -164,10 +164,9 @@ public class YaCyApp {
 
         // registering shutdown hook
         log.info("Registering Shutdown Hook");
-        Thread t = new Thread() {
+        Thread t = new Thread("YaCyApp") {
             @Override
             public void run() {
-                Thread.currentThread().setName("YaCyApp");
                 app = new Application("YaCy GUI", operation, menues, new InfoPage(host, port));
                 app.setLocationRelativeTo(null);
                 app.setVisible(true);
diff --git a/source/net/yacy/http/Jetty9HttpServerImpl.java b/source/net/yacy/http/Jetty9HttpServerImpl.java
index 72cfbad94..f692fb27a 100644
--- a/source/net/yacy/http/Jetty9HttpServerImpl.java
+++ b/source/net/yacy/http/Jetty9HttpServerImpl.java
@@ -298,11 +298,10 @@ public class Jetty9HttpServerImpl implements YaCyHttpServer {
     @Override
     public void reconnect(final int milsec) {
 
-        new Thread() {
+        new Thread("Jetty8HttpServer.reconnect") {
 
             @Override
             public void run() {
-                this.setName("Jetty8HttpServer.reconnect");
                 try {
                     Thread.sleep(milsec);
                 } catch (final InterruptedException e) {
diff --git a/source/net/yacy/kelondro/blob/MapHeap.java b/source/net/yacy/kelondro/blob/MapHeap.java
index 8aec46b90..f8d34cc38 100644
--- a/source/net/yacy/kelondro/blob/MapHeap.java
+++ b/source/net/yacy/kelondro/blob/MapHeap.java
@@ -526,10 +526,9 @@ public class MapHeap implements Map<byte[], Map<String, String>> {
     public final static byte[] POISON_QUEUE_ENTRY = "POISON".getBytes();
     public BlockingQueue<byte[]> keyQueue(final int size) {
         final ArrayBlockingQueue<byte[]> set = new ArrayBlockingQueue<byte[]>(size);
-        (new Thread() {
+        (new Thread("MapHeap.keyQueue:" + size) {
             @Override
             public void run() {
-                Thread.currentThread().setName("MapHeap.keyQueue:" + size);
                 try {
                     final Iterator<byte[]> i = MapHeap.this.blob.keys(true, false);
                     while (i.hasNext())
diff --git a/source/net/yacy/kelondro/rwi/IODispatcher.java b/source/net/yacy/kelondro/rwi/IODispatcher.java
index 01ac6b8ba..f8185004a 100644
--- a/source/net/yacy/kelondro/rwi/IODispatcher.java
+++ b/source/net/yacy/kelondro/rwi/IODispatcher.java
@@ -58,13 +58,13 @@ public class IODispatcher extends Thread {
     private final int                      writeBufferSize;
 
     public IODispatcher(final int dumpQueueLength, final int mergeQueueLength, final int writeBufferSize) {
+    	super("IODispatcher");
         this.termination = new Semaphore(0);
         this.controlQueue = new Semaphore(0);
         this.dumpQueue = new ArrayBlockingQueue<DumpJob<? extends Reference>>(dumpQueueLength);
         this.mergeQueue = new ArrayBlockingQueue<MergeJob>(mergeQueueLength);
         this.writeBufferSize = writeBufferSize;
         this.terminate = false;
-        this.setName("IODispatcher");
     }
 
     public void terminate() {
diff --git a/source/net/yacy/kelondro/rwi/IndexCell.java b/source/net/yacy/kelondro/rwi/IndexCell.java
index d8b6c7f57..aeaca15ef 100644
--- a/source/net/yacy/kelondro/rwi/IndexCell.java
+++ b/source/net/yacy/kelondro/rwi/IndexCell.java
@@ -113,8 +113,9 @@ public final class IndexCell<ReferenceType extends Reference> extends AbstractBu
 
     private class FlushThread extends Thread {
         public FlushThread(String name) {
-            this.setName("IndexCell.FlushThread(" + name + ")");
+            super("IndexCell.FlushThread(" + name + ")");
         }
+        
         @Override
         public void run() {
             while (IndexCell.this.flushShallRun) {
diff --git a/source/net/yacy/kelondro/table/SplitTable.java b/source/net/yacy/kelondro/table/SplitTable.java
index ca8bbf90e..354b9de14 100644
--- a/source/net/yacy/kelondro/table/SplitTable.java
+++ b/source/net/yacy/kelondro/table/SplitTable.java
@@ -231,10 +231,9 @@ public class SplitTable implements Index, Iterable<Row.Entry> {
                 }
             }
             final Table a = table;
-            final Thread p = new Thread() {
+            final Thread p = new Thread("SplitTable.warmUp") {
                 @Override
                 public void run() {
-                    Thread.currentThread().setName("SplitTable.warmUp");
                     a.warmUp();
                 }
             };
diff --git a/source/net/yacy/peers/RemoteSearch.java b/source/net/yacy/peers/RemoteSearch.java
index 36dd69150..01ae2eb19 100644
--- a/source/net/yacy/peers/RemoteSearch.java
+++ b/source/net/yacy/peers/RemoteSearch.java
@@ -331,10 +331,9 @@ public class RemoteSearch extends Thread {
         // prepare seed targets and threads
         final Seed targetPeer = event.peers.getConnected(targethash);
         if (targetPeer == null || targetPeer.hash == null) return null;
-        Thread secondary = new Thread() {
+        Thread secondary = new Thread("RemoteSearch.secondaryRemoteSearch(" + wordhashes + " to " + targethash + ")") {
             @Override
             public void run() {
-                this.setName("RemoteSearch.secondaryRemoteSearch(" + wordhashes + " to " + targethash + ")");
                 event.oneFeederStarted();
                 try {
                     int urls = Protocol.secondarySearch(
@@ -400,10 +399,9 @@ public class RemoteSearch extends Thread {
         // check own peer status
         if (event.peers.mySeed() == null) { return null; }
         // prepare threads
-        Thread solr = new Thread() {
+        Thread solr = new Thread("RemoteSearch.solrRemoteSearch(" + solrQuery.getQuery() + " to " + (targetPeer == null ? "myself" : targetPeer.hash) + ")") {
             @Override
             public void run() {
-                this.setName("RemoteSearch.solrRemoteSearch(" + solrQuery.getQuery() + " to " + (targetPeer == null ? "myself" : targetPeer.hash) + ")");
                     int urls = 0;
                     try {
                         event.oneFeederStarted();
diff --git a/source/net/yacy/peers/graphics/WebStructureGraph.java b/source/net/yacy/peers/graphics/WebStructureGraph.java
index 40b6d0902..bb38bbd6c 100644
--- a/source/net/yacy/peers/graphics/WebStructureGraph.java
+++ b/source/net/yacy/peers/graphics/WebStructureGraph.java
@@ -180,7 +180,7 @@ public class WebStructureGraph {
      */
     private class PublicRefDNSResolvingProcess extends Thread {
         private PublicRefDNSResolvingProcess() {
-            this.setName("WebStructureGraph.PublicRefDNSResolvingProcess");
+            super("WebStructureGraph.PublicRefDNSResolvingProcess");
         }
 
         @Override
diff --git a/source/net/yacy/search/MemoryTracker.java b/source/net/yacy/search/MemoryTracker.java
index 5b8b13b01..99ffddb1d 100644
--- a/source/net/yacy/search/MemoryTracker.java
+++ b/source/net/yacy/search/MemoryTracker.java
@@ -46,9 +46,9 @@ public class MemoryTracker extends Thread {
     private boolean running;
     
     public MemoryTracker(final long time) {
+    	super("MemoryTracker");
     	this.delaytime = time;
     	running = true;
-    	this.setName("MemoryTracker");
     }
     
     @Override
diff --git a/source/net/yacy/search/Switchboard.java b/source/net/yacy/search/Switchboard.java
index 5134bcb45..2242802d9 100644
--- a/source/net/yacy/search/Switchboard.java
+++ b/source/net/yacy/search/Switchboard.java
@@ -416,10 +416,9 @@ public final class Switchboard extends serverSwitch {
         
         // init libraries
         this.log.config("initializing libraries");
-        new Thread() {
+        new Thread("LibraryProvider.initialize") {
             @Override
             public void run() {
-                Thread.currentThread().setName("LibraryProvider.initialize");
                 LibraryProvider.initialize(Switchboard.this.dictionariesPath);
                 // persistent Vocabulary Switches
                 final Set<String> omit = Switchboard.this.getConfigSet("search.result.show.vocabulary.omit");
@@ -857,10 +856,9 @@ public final class Switchboard extends serverSwitch {
 
         // init bookmarks DB: needs more time since this does a DNS lookup for each Bookmark.
         // Can be started concurrently
-        new Thread() {
+        new Thread("Switchboard.initBookmarks") {
             @Override
             public void run() {
-                Thread.currentThread().setName("Switchboard.initBookmarks");
                 try {
                     initBookmarks();
                 } catch (final IOException e ) {
@@ -1281,10 +1279,9 @@ public final class Switchboard extends serverSwitch {
         super.setHttpServer(server);
         
         // finally start jobs which shall be started after start-up
-        new Thread() {
+        new Thread("Switchboard.setHttpServer") {
             @Override
             public void run() {
-                Thread.currentThread().setName("Switchboard.setHttpServer");
                 try {Thread.sleep(10000);} catch (final InterruptedException e) {} // needs httpd up
                 schedulerJob(); // trigger startup actions
             }
@@ -3450,10 +3447,9 @@ public final class Switchboard extends serverSwitch {
         final List<Thread> stackthreads = new ArrayList<Thread>(); // do this concurrently
         for (DigestURL url: rootURLs) {
             final DigestURL turl = url;
-            Thread t = new Thread() {
+            Thread t = new Thread("Switchboard.stackURLs") {
                 @Override
                 public void run() {
-                	this.setName("Switchboard.stackURLs");
                     String failreason;
                     if ((failreason = Switchboard.this.stackUrl(profile, turl)) == null) successurls.add(turl); else failurls.put(turl, failreason);
                 }
@@ -4018,10 +4014,9 @@ public final class Switchboard extends serverSwitch {
     }
 
     public final void heuristicSite(final SearchEvent searchEvent, final String host) {
-        new Thread() {
+        new Thread("Switchboard.heuristicSite:" + host) {
             @Override
             public void run() {
-                Thread.currentThread().setName("Switchboard.heuristicSite:" + host);
                 String r = host;
                 if ( r.indexOf("//", 0) < 0 ) {
                     r = "http://" + r;
@@ -4132,10 +4127,9 @@ public final class Switchboard extends serverSwitch {
         final SearchEvent searchEvent,
         final String feedName) {
 
-        new Thread() {
+        new Thread("heuristicRSS:" + feedName) {
             @Override
             public void run() {
-                Thread.currentThread().setName("heuristicRSS:" + feedName);
                 final DigestURL url;
                 try {
                     url = new DigestURL(MultiProtocolURL.unescape(urlpattern));
diff --git a/source/net/yacy/search/query/SearchEvent.java b/source/net/yacy/search/query/SearchEvent.java
index 7b3895d9b..6ea109cc7 100644
--- a/source/net/yacy/search/query/SearchEvent.java
+++ b/source/net/yacy/search/query/SearchEvent.java
@@ -451,11 +451,9 @@ public final class SearchEvent implements ScoreMapUpdatesListener {
                 // start this concurrently because the remote search needs an enumeration
                 // of the remote peers which may block in some cases when i.e. DHT is active
                 // at the same time.
-                new Thread() {
+                new Thread("SearchEvent.primaryRemoteSearches") {
                     @Override
                     public void run() {
-                        this.setName("SearchEvent.init(" + query.getQueryGoal().getQueryString(false) + ")");
-                        Thread.currentThread().setName("SearchEvent.primaryRemoteSearches");
                         RemoteSearch.primaryRemoteSearches(
                         	SearchEvent.this,
                             0, remote_maxcount,
diff --git a/source/net/yacy/search/query/SecondarySearchSuperviser.java b/source/net/yacy/search/query/SecondarySearchSuperviser.java
index ecabd5b53..106469699 100644
--- a/source/net/yacy/search/query/SecondarySearchSuperviser.java
+++ b/source/net/yacy/search/query/SecondarySearchSuperviser.java
@@ -48,10 +48,9 @@ public class SecondarySearchSuperviser extends Thread {
             return;
         }
         // extend the abstracts in the cache: join the single abstracts
-        new Thread() {
+        new Thread("SecondarySearch.addAbstract:" + wordhash) {
             @Override
             public void run() {
-                Thread.currentThread().setName("SecondarySearch.addAbstract:" + wordhash);
                 for ( final Map.Entry<String, Set<String>> oneref : singleAbstract.entrySet() ) {
                     final String urlhash = oneref.getKey();
                     final Set<String> peerlistNew = oneref.getValue();