Cleanup use of Guava library

[yangtools.git] / yang / yang-common / src / main / java / org / opendaylight / yangtools / yang / common / Revision.java

diff --git a/yang/yang-common/src/main/java/org/opendaylight/yangtools/yang/common/Revision.java b/yang/yang-common/src/main/java/org/opendaylight/yangtools/yang/common/Revision.java
index a5a59acd86d292853e5905a5f3147921b8808300..54279d7a497b6aeea4bd8245be9f281478343699 100644 (file)
--- a/yang/yang-common/src/main/java/org/opendaylight/yangtools/yang/common/Revision.java
+++ b/yang/yang-common/src/main/java/org/opendaylight/yangtools/yang/common/Revision.java
@@ -7,7 +7,8 @@
  */
 package org.opendaylight.yangtools.yang.common;
 
-import com.google.common.base.Preconditions;
+import static java.util.Objects.requireNonNull;
+
 import java.io.Externalizable;
 import java.io.IOException;
 import java.io.ObjectInput;
@@ -37,12 +38,12 @@ public abstract class Revision implements Comparable<Revision>, Serializable {
         private String str;
 
         ForDate(final Date date) {
-            this.date = Preconditions.checkNotNull(date);
+            this.date = requireNonNull(date);
         }
 
         ForDate(final Date date, final String str) {
-            this.date = Preconditions.checkNotNull(date);
-            this.str = Preconditions.checkNotNull(str);
+            this.date = requireNonNull(date);
+            this.str = requireNonNull(str);
         }
 
         @Override
@@ -78,7 +79,7 @@ public abstract class Revision implements Comparable<Revision>, Serializable {
         }
 
         Proxy(final String str) {
-            this.str = Preconditions.checkNotNull(str);
+            this.str = requireNonNull(str);
         }
 
         @Override