shut down more services explicitly

core/src/main/groovy/com/muwire/core/Core.groovy

@@ -389,6 +389,10 @@ public class Core {
         saveMuSettings()
         log.info("shutting down trust subscriber")
         trustSubscriber.stop()
+        log.info("shutting down trust service")
+        trustService.stop()
+        log.info("shutting down persister service")
+        persisterService.stop()
         log.info("shutting down download manager")
         downloadManager.shutdown()
         log.info("shutting down connection acceptor")
@@ -411,6 +415,8 @@ public class Core {
             log.info("shutting down embedded router")
             router.shutdown(0)
         }
+        log.info("shutting down event bus");
+        eventBus.shutdown()
         log.info("shutdown complete")
     }
     

core/src/main/groovy/com/muwire/core/EventBus.groovy

@@ -2,6 +2,7 @@ package com.muwire.core
 
 import java.util.concurrent.CopyOnWriteArrayList
 import java.util.concurrent.Executor
+import java.util.concurrent.ExecutorService
 import java.util.concurrent.Executors
 import java.util.logging.Level
 
@@ -12,7 +13,7 @@ import groovy.util.logging.Log
 class EventBus {
 
     private Map handlers = new HashMap()
-    private final Executor executor = Executors.newSingleThreadExecutor {r ->
+    private final ExecutorService executor = Executors.newSingleThreadExecutor {r ->
         def rv = new Thread(r)
         rv.setDaemon(true)
         rv.setName("event-bus")
@@ -53,4 +54,8 @@ class EventBus {
         log.info("Unregistering $handler for type $eventType")
         handlers[eventType]?.remove(handler)
     }
+    
+    void shutdown() {
+        executor.shutdownNow()
+    }
 }