Cleanup use of Guava library

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

diff --git a/yang/yang-data-impl/src/main/java/org/opendaylight/yangtools/yang/data/impl/schema/tree/ReplaceLeafCandidateNode.java b/yang/yang-data-impl/src/main/java/org/opendaylight/yangtools/yang/data/impl/schema/tree/ReplaceLeafCandidateNode.java
index b666456f952c687996a1ee610f9b3d4e8671b56f..3abef50893a610c508693cd2790de3a62be309b5 100644 (file)
--- a/yang/yang-data-impl/src/main/java/org/opendaylight/yangtools/yang/data/impl/schema/tree/ReplaceLeafCandidateNode.java
+++ b/yang/yang-data-impl/src/main/java/org/opendaylight/yangtools/yang/data/impl/schema/tree/ReplaceLeafCandidateNode.java
@@ -7,8 +7,9 @@
  */
 package org.opendaylight.yangtools.yang.data.impl.schema.tree;
 
-import com.google.common.base.Optional;
-import com.google.common.base.Preconditions;
+import static java.util.Objects.requireNonNull;
+
+import java.util.Optional;
 import javax.annotation.Nonnull;
 import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNode;
 
@@ -17,7 +18,7 @@ final class ReplaceLeafCandidateNode extends AbstractWriteCandidate {
 
     ReplaceLeafCandidateNode(final NormalizedNode<?, ?> oldData, final NormalizedNode<?, ?> newData) {
         super(newData);
-        this.oldData = Preconditions.checkNotNull(oldData);
+        this.oldData = requireNonNull(oldData);
     }
 
     @Nonnull