once again a performance hack

git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@6388 6c8d7289-2bf4-0310-a012-ef5d649a1542

source/de/anomic/kelondro/util/FileUtils.java

@@ -533,6 +533,7 @@ public final class FileUtils {
     }
 
     public static Iterator<String> strings(byte[] a) {
+        if (a == null) return new ArrayList<String>().iterator();
         try {
             return new StringsIterator(new BufferedReader(new InputStreamReader(new ByteArrayInputStream(a), "UTF-8")));
         } catch (UnsupportedEncodingException e) {

source/de/anomic/search/Switchboard.java

@@ -1656,7 +1656,6 @@ public final class Switchboard extends serverAbstractSwitch implements serverSwi
             }
             final long stackEndTime = System.currentTimeMillis();
             if (log.isInfo()) log.logInfo("CRAWL: ADDED " + hl.size() + " LINKS FROM " + entry.url().toNormalform(false, true) +
-                    ", NEW CRAWL STACK SIZE IS " + crawlQueues.noticeURL.stackSize(NoticedURL.STACK_TYPE_CORE) +
                     ", STACKING TIME = " + (stackEndTime-stackStartTime) +
                     ", PARSING TIME = " + (parsingEndTime-parsingStartTime));
         }

source/de/anomic/server/serverCore.java

@@ -235,7 +235,6 @@ public final class serverCore extends serverAbstractBusyThread implements server
                 this.log.logInfo("Trying to bind server to port " + bindPort+ " with "+ extendedPort + "as seedPort.");
                 this.socket.bind(/*bindAddress = */generateSocketAddress(bindPort));
             }
-            
             // updating the port information
             //yacyCore.seedDB.mySeed.put(yacySeed.PORT,Integer.toString(bindAddress.getPort()));    
             //yacyCore.seedDB.mySeed().put(yacySeed.PORT, extendedPort);

source/de/anomic/yacy/yacyURL.java

@@ -786,7 +786,9 @@ public class yacyURL implements Serializable {
 
     public final String hash() {
         // in case that the object was initialized without a known url hash, compute it now
-        if (this.hash == null) this.hash = urlHashComputation();
+        synchronized (this) {
+            if (this.hash == null) this.hash = urlHashComputation();
+        }
         return this.hash;
     }