fix for http://forum.yacy-websuche.de/viewtopic.php?p=9835#p9835

git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@5164 6c8d7289-2bf4-0310-a012-ef5d649a1542

source/de/anomic/plasma/plasmaSwitchboard.java

@@ -1797,6 +1797,7 @@ public final class plasmaSwitchboard extends serverAbstractSwitch<IndexingStack.
         // find all the words in a specific resource and remove the url reference from every word index
         // finally, delete the url entry
         
+        if (urlhash == null) return 0;
         // determine the url string
         final indexURLReference entry = webIndex.getURL(urlhash, null, 0);
         if (entry == null) return 0;
@@ -1807,6 +1808,11 @@ public final class plasmaSwitchboard extends serverAbstractSwitch<IndexingStack.
         try {
             // get the resource content
             final Object[] resource = plasmaSnippetCache.getResource(comp.url(), fetchOnline, 10000, true, false);
+            if (resource == null) {
+                // delete just the url entry
+                webIndex.removeURL(urlhash);
+                return 0;
+            } else {
                 resourceContent = (InputStream) resource[0];
                 final Long resourceContentLength = (Long) resource[1];
                 
@@ -1828,6 +1834,7 @@ public final class plasmaSwitchboard extends serverAbstractSwitch<IndexingStack.
                 // finally delete the url entry itself
                 webIndex.removeURL(urlhash);
                 return count;
+            }
         } catch (final ParserException e) {
             return 0;
         } finally {