Do not tolerate empty action instances

The set of instances is specified to be non-empty, enforce this
requirement.

Change-Id: If3334c850eaf3ffb1be33626b332547268a2bd90
Signed-off-by: Robert Varga <robert.varga@pantheon.tech>

diff --git a/dom/mdsal-dom-broker/src/main/java/org/opendaylight/mdsal/dom/broker/DOMRpcRouter.java b/dom/mdsal-dom-broker/src/main/java/org/opendaylight/mdsal/dom/broker/DOMRpcRouter.java
index e66a29d68422d0af1e4fdd625dce8ad26ad5aa57..ef656b8634277e7749db92e32a32abff0255c954 100644 (file)
--- a/dom/mdsal-dom-broker/src/main/java/org/opendaylight/mdsal/dom/broker/DOMRpcRouter.java
+++ b/dom/mdsal-dom-broker/src/main/java/org/opendaylight/mdsal/dom/broker/DOMRpcRouter.java
@@ -453,6 +453,7 @@ public final class DOMRpcRouter extends AbstractRegistration
         @Override
         public <T extends DOMActionImplementation> ObjectRegistration<T> registerActionImplementation(
                 final T implementation, final Set<DOMActionInstance> instances) {
+            checkArgument(!instances.isEmpty(), "Instances must not be empty");
 
             synchronized (DOMRpcRouter.this) {
                 final DOMActionRoutingTable oldTable = actionRoutingTable;