fix for null pointer exception during shut-down

git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@1415 6c8d7289-2bf4-0310-a012-ef5d649a1542

source/de/anomic/plasma/plasmaSwitchboard.java

@@ -768,7 +768,7 @@ public final class plasmaSwitchboard extends serverAbstractSwitch implements ser
     public void close() {
         log.logConfig("SWITCHBOARD SHUTDOWN STEP 1: sending termination signal to managed threads:");
         terminateAllThreads(true);
-        log.logConfig("SWITCHBOARD SHUTDOWN STEP 2: sending termination signal to database manager");
+        log.logConfig("SWITCHBOARD SHUTDOWN STEP 2: sending termination signal to threaded indexing");
         // closing all still running db importer jobs
         plasmaDbImporter.close();
         indexDistribution.close();
@@ -779,15 +779,15 @@ public final class plasmaSwitchboard extends serverAbstractSwitch implements ser
         messageDB.close();
         if (facilityDB != null) try {facilityDB.close();} catch (IOException e) {}
         sbStackCrawlThread.close();
-        urlPool.close();
         profiles.close();
         robots.close();
         parser.close();
         cacheManager.close();
         sbQueue.close();
         flushCitationReference(crg, "crg");
-        log.logConfig("SWITCHBOARD SHUTDOWN STEP 3: sending termination signal to threaded indexing (stand by...)");
+        log.logConfig("SWITCHBOARD SHUTDOWN STEP 3: sending termination signal to database manager (stand by...)");
         int waitingBoundSeconds = Integer.parseInt(getConfig("maxWaitingWordFlush", "120"));
+        urlPool.close();
         wordIndex.close(waitingBoundSeconds);
         log.logConfig("SWITCHBOARD SHUTDOWN TERMINATED");
     }

source/de/anomic/plasma/plasmaWordIndexCache.java

@@ -498,15 +498,17 @@ public final class plasmaWordIndexCache implements plasmaWordIndexInterface {
     public void close(int waitingSeconds) {
         // stop permanent flushing
         flushThread.terminate();
-        try {flushThread.join(5000);} catch (InterruptedException e) {}
+        try {flushThread.join(6000);} catch (InterruptedException e) {}
 
-        // close cluster
-        assortmentCluster.close();
+        // dump cache
         try {
             dump(waitingSeconds);
         } catch (IOException e){
             log.logSevere("unable to dump cache: " + e.getMessage(), e);
         }
+        
+        // close cluster
+        assortmentCluster.close();
     }
 
     public Object migrateWords2Assortment(String wordhash) throws IOException {