Convert yang-data-impl to a JPMS module

[yangtools.git] / yang / yang-data-impl / src / main / java / org / opendaylight / yangtools / yang / data / impl / schema / tree / NodeModification.java

diff --git a/yang/yang-data-impl/src/main/java/org/opendaylight/yangtools/yang/data/impl/schema/tree/NodeModification.java b/yang/yang-data-impl/src/main/java/org/opendaylight/yangtools/yang/data/impl/schema/tree/NodeModification.java
index 225a931ec0a5eb65286cfe288936696bb28c27d1..b652aff43765922e21216868d47cc6ac810e70a9 100644 (file)
--- a/yang/yang-data-impl/src/main/java/org/opendaylight/yangtools/yang/data/impl/schema/tree/NodeModification.java
+++ b/yang/yang-data-impl/src/main/java/org/opendaylight/yangtools/yang/data/impl/schema/tree/NodeModification.java
@@ -7,8 +7,8 @@
  */
 package org.opendaylight.yangtools.yang.data.impl.schema.tree;
 
-import com.google.common.base.Optional;
 import java.util.Collection;
+import java.util.Optional;
 import org.opendaylight.yangtools.concepts.Identifiable;
 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier.PathArgument;
 import org.opendaylight.yangtools.yang.data.api.schema.tree.spi.TreeNode;
@@ -32,7 +32,7 @@ abstract class NodeModification implements Identifiable<PathArgument> {
      * @return The original node, or {@link Optional#absent()} if the node is
      *         a new node.
      */
-    abstract Optional<TreeNode> getOriginal();
+    abstract Optional<? extends TreeNode> getOriginal();
 
     /**
      * Get a read-only view of children nodes.