redirect exceptions in result sender to log

core/src/main/groovy/com/muwire/core/search/ResultsSender.groovy

@@ -11,6 +11,7 @@ import java.util.concurrent.Executor
 import java.util.concurrent.Executors
 import java.util.concurrent.ThreadFactory
 import java.util.concurrent.atomic.AtomicInteger
+import java.util.logging.Level
 import java.util.stream.Collectors
 
 import com.muwire.core.DownloadedFile
@@ -83,6 +84,7 @@ class ResultsSender {
         
         @Override
         public void run() {
+            try {
                 byte [] tmp = new byte[InfoHash.SIZE]
                 JsonOutput jsonOutput = new JsonOutput()
                 Endpoint endpoint = null;
@@ -128,6 +130,9 @@ class ResultsSender {
                 } finally {
                     endpoint?.close()
                 }
+            } catch (Exception e) {
+                log.log(Level.WARNING, "problem sending results",e)
+            }
         }
     }
 }