Add an explicit null data check 52/62652/3
authorRobert Varga <>
Mon, 4 Sep 2017 20:38:11 +0000 (22:38 +0200)
committerStephen Kitt <>
Tue, 5 Sep 2017 08:37:35 +0000 (08:37 +0000)
We have observed restconf attempting to put null data into a path,
leading to an implicit NPE without any explanation. Add an explicit
guard to catch such attempts.

Change-Id: I2e2125b04782d4f1c050d0aeb72161158da28c9f
Signed-off-by: Robert Varga <>

index 0fe26ed..5dd8bd3 100644 (file)
@@ -82,6 +82,7 @@ public abstract class AbstractDOMBrokerWriteTransaction<T extends DOMStoreWriteT
     private static void checkInstanceIdentifierReferencesData(final YangInstanceIdentifier path,
             final NormalizedNode<?, ?> data) {
+        Preconditions.checkArgument(data != null, "Attempted to store null data at %s", path);
         final PathArgument lastArg = path.getLastPathArgument();
                 lastArg == data.getIdentifier() || lastArg != null && lastArg.equals(data.getIdentifier()),

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