X-Git-Url: https://git.opendaylight.org/gerrit/gitweb?a=blobdiff_plain;f=opendaylight%2Fmd-sal%2Fmessagebus-impl%2Fsrc%2Fmain%2Fjava%2Forg%2Fopendaylight%2Fcontroller%2Fmessagebus%2Fapp%2Fimpl%2FEventSourceRegistrationImpl.java;h=89b8a9c313672b3ece5bd1086e5247344bec9402;hb=37cdbd3d1e388cae9aaae2558dd6f465c545937d;hp=d9390903232fcda81292a24a96768adb6436a5de;hpb=4e594bb578f687fb24e242e90b918d91fb59c3ac;p=controller.git

diff --git a/opendaylight/md-sal/messagebus-impl/src/main/java/org/opendaylight/controller/messagebus/app/impl/EventSourceRegistrationImpl.java b/opendaylight/md-sal/messagebus-impl/src/main/java/org/opendaylight/controller/messagebus/app/impl/EventSourceRegistrationImpl.java
index d939090323..89b8a9c313 100644
--- a/opendaylight/md-sal/messagebus-impl/src/main/java/org/opendaylight/controller/messagebus/app/impl/EventSourceRegistrationImpl.java
+++ b/opendaylight/md-sal/messagebus-impl/src/main/java/org/opendaylight/controller/messagebus/app/impl/EventSourceRegistrationImpl.java
@@ -7,28 +7,30 @@
  */
 package org.opendaylight.controller.messagebus.app.impl;
 
+import static java.util.Objects.requireNonNull;
+
 import org.opendaylight.controller.messagebus.spi.EventSource;
 import org.opendaylight.controller.messagebus.spi.EventSourceRegistration;
 import org.opendaylight.yangtools.concepts.AbstractObjectRegistration;
 
-import com.google.common.base.Preconditions;
-
-
-class EventSourceRegistrationImpl <T extends EventSource> extends AbstractObjectRegistration<T> implements EventSourceRegistration<T>{
+class EventSourceRegistrationImpl<T extends EventSource> extends AbstractObjectRegistration<T>
+        implements EventSourceRegistration<T> {
 
     private final EventSourceTopology eventSourceTopology;
 
     /**
-     * @param instance of EventSource that has been registered by {@link EventSourceRegistryImpl#registerEventSource(Node, EventSource)}
+     * Constructor.
+     *
+     * @param instance of EventSource that has been registered by
+     *     {@link EventSourceRegistryImpl#registerEventSource(Node, EventSource)}
      */
-    public EventSourceRegistrationImpl(T instance, EventSourceTopology eventSourceTopology) {
+    EventSourceRegistrationImpl(T instance, EventSourceTopology eventSourceTopology) {
         super(instance);
-        this.eventSourceTopology = Preconditions.checkNotNull(eventSourceTopology);
+        this.eventSourceTopology = requireNonNull(eventSourceTopology);
     }
 
     @Override
     protected void removeRegistration() {
         this.eventSourceTopology.unRegister(getInstance());
     }
-
 }