Nest id-ints list inside a container

[controller.git] / opendaylight / md-sal / samples / clustering-test-app / provider / src / main / java / org / opendaylight / controller / clustering / it / provider / impl / IdIntsListener.java

diff --git a/opendaylight/md-sal/samples/clustering-test-app/provider/src/main/java/org/opendaylight/controller/clustering/it/provider/impl/IdIntsListener.java b/opendaylight/md-sal/samples/clustering-test-app/provider/src/main/java/org/opendaylight/controller/clustering/it/provider/impl/IdIntsListener.java
index 5767008d05cd4d3bfebc34de3ae6933d248be469..fc3f9adfddf71b2f4759d21875012b04b17fd92a 100644 (file)
--- a/opendaylight/md-sal/samples/clustering-test-app/provider/src/main/java/org/opendaylight/controller/clustering/it/provider/impl/IdIntsListener.java
+++ b/opendaylight/md-sal/samples/clustering-test-app/provider/src/main/java/org/opendaylight/controller/clustering/it/provider/impl/IdIntsListener.java
@@ -37,7 +37,9 @@ public class IdIntsListener implements DOMDataTreeChangeListener {
 
         changes.forEach(change -> {
             if (change.getRootNode().getDataAfter().isPresent()) {
-                LOG.trace("Received change, data before: {}, data after: ", change.getRootNode().getDataBefore().get(),
+                LOG.trace("Received change, data before: {}, data after: ",
+                        change.getRootNode().getDataBefore().isPresent()
+                                ? change.getRootNode().getDataBefore().get() : "",
                         change.getRootNode().getDataAfter().get());
 
                 if (localCopy == null || checkEqual(change.getRootNode().getDataBefore().get())) {