Cleanup use of Guava library

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

diff --git a/yang/yang-data-impl/src/main/java/org/opendaylight/yangtools/yang/data/impl/schema/tree/RecursiveReplaceCandidateNode.java b/yang/yang-data-impl/src/main/java/org/opendaylight/yangtools/yang/data/impl/schema/tree/RecursiveReplaceCandidateNode.java
index 0f44ccf81ef9f673195bfed552269ab0dbbc871f..fb39da0789e742ac325d1d115635d403019c0dd4 100644 (file)
--- a/yang/yang-data-impl/src/main/java/org/opendaylight/yangtools/yang/data/impl/schema/tree/RecursiveReplaceCandidateNode.java
+++ b/yang/yang-data-impl/src/main/java/org/opendaylight/yangtools/yang/data/impl/schema/tree/RecursiveReplaceCandidateNode.java
@@ -8,9 +8,10 @@
 
 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.Collection;
+import java.util.Optional;
 import javax.annotation.Nonnull;
 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier.PathArgument;
 import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNode;
@@ -24,7 +25,7 @@ final class RecursiveReplaceCandidateNode extends AbstractDataTreeCandidateNode
     RecursiveReplaceCandidateNode(final NormalizedNodeContainer<?, PathArgument, NormalizedNode<?, ?>> oldData,
             final NormalizedNodeContainer<?, PathArgument, NormalizedNode<?, ?>> newData) {
         super(newData);
-        this.oldData = Preconditions.checkNotNull(oldData);
+        this.oldData = requireNonNull(oldData);
     }
 
     @Override