[incubator-plc4x] 02/02: [GENERAL] fix npe on unsubscription

[sruehl]

This is an automated email from the ASF dual-hosted git repository.

sruehl pushed a commit to branch master
in repository https://gitbox.apache.org/repos/asf/incubator-plc4x.git

commit 451c49d86cdbdbd6185f4508b7b465324fb8292a
Author: Sebastian Rühl <sru...@apache.org>
AuthorDate: Thu Oct 18 15:20:13 2018 +0200

    [GENERAL] fix npe on unsubscription
---
 .../plc4x/java/base/messages/DefaultPlcUnsubscriptionRequest.java     | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git 
a/plc4j/protocols/driver-bases/base/src/main/java/org/apache/plc4x/java/base/messages/DefaultPlcUnsubscriptionRequest.java
 
b/plc4j/protocols/driver-bases/base/src/main/java/org/apache/plc4x/java/base/messages/DefaultPlcUnsubscriptionRequest.java
index 4f162d4..6fe3cfb 100644
--- 
a/plc4j/protocols/driver-bases/base/src/main/java/org/apache/plc4x/java/base/messages/DefaultPlcUnsubscriptionRequest.java
+++ 
b/plc4j/protocols/driver-bases/base/src/main/java/org/apache/plc4x/java/base/messages/DefaultPlcUnsubscriptionRequest.java
@@ -70,13 +70,13 @@ public class DefaultPlcUnsubscriptionRequest implements 
InternalPlcUnsubscriptio
         public PlcUnsubscriptionRequest.Builder 
addHandle(PlcSubscriptionHandle plcSubscriptionHandle1, 
PlcSubscriptionHandle... plcSubscriptionHandles) {
             this.plcSubscriptionHandles.add((InternalPlcSubscriptionHandle) 
plcSubscriptionHandle1);
             
this.plcSubscriptionHandles.addAll(Arrays.stream(plcSubscriptionHandles).map(InternalPlcSubscriptionHandle.class::cast).collect(Collectors.toList()));
-            return null;
+            return this;
         }
 
         @Override
         public PlcUnsubscriptionRequest.Builder 
addHandles(Collection<PlcSubscriptionHandle> plcSubscriptionHandles) {
             
this.plcSubscriptionHandles.addAll(plcSubscriptionHandles.stream().map(InternalPlcSubscriptionHandle.class::cast).collect(Collectors.toList()));
-            return null;
+            return this;
         }
 
         @Override