X-Git-Url: https://git.opendaylight.org/gerrit/gitweb?a=blobdiff_plain;f=opendaylight%2Fmd-sal%2Fsal-distributed-datastore%2Fsrc%2Fmain%2Fjava%2Forg%2Fopendaylight%2Fcontroller%2Fcluster%2Fdatastore%2FLocalFrontendHistory.java;h=b7239032b59fb0eaabf85e1b582297dffe09cb3f;hb=2611e6a728e586ea34dd891f30a473bf54d6cbd8;hp=73d2c9f805a530fc2c5de9ea6bcee49bf9bcb481;hpb=731e7284cf0895fdb1b89427f91762e80e67c2ff;p=controller.git

diff --git a/opendaylight/md-sal/sal-distributed-datastore/src/main/java/org/opendaylight/controller/cluster/datastore/LocalFrontendHistory.java b/opendaylight/md-sal/sal-distributed-datastore/src/main/java/org/opendaylight/controller/cluster/datastore/LocalFrontendHistory.java
index 73d2c9f805..b7239032b5 100644
--- a/opendaylight/md-sal/sal-distributed-datastore/src/main/java/org/opendaylight/controller/cluster/datastore/LocalFrontendHistory.java
+++ b/opendaylight/md-sal/sal-distributed-datastore/src/main/java/org/opendaylight/controller/cluster/datastore/LocalFrontendHistory.java
@@ -7,7 +7,8 @@
  */
 package org.opendaylight.controller.cluster.datastore;
 
-import com.google.common.base.Preconditions;
+import static java.util.Objects.requireNonNull;
+
 import com.google.common.collect.ImmutableMap;
 import com.google.common.collect.RangeSet;
 import com.google.common.collect.TreeRangeSet;
@@ -17,11 +18,9 @@ import java.util.Map;
 import java.util.Optional;
 import java.util.SortedSet;
 import org.opendaylight.controller.cluster.access.concepts.LocalHistoryIdentifier;
-import org.opendaylight.controller.cluster.access.concepts.RequestException;
 import org.opendaylight.controller.cluster.access.concepts.TransactionIdentifier;
 import org.opendaylight.yangtools.yang.data.api.schema.tree.DataTreeModification;
 
-
 /**
  * Chained transaction specialization of {@link AbstractFrontendHistory}. It prevents concurrent open transactions.
  *
@@ -34,7 +33,7 @@ final class LocalFrontendHistory extends AbstractFrontendHistory {
             final ShardDataTreeTransactionChain chain, final Map<UnsignedLong, Boolean> closedTransactions,
             final RangeSet<UnsignedLong> purgedTransactions) {
         super(persistenceId, tree, closedTransactions, purgedTransactions);
-        this.chain = Preconditions.checkNotNull(chain);
+        this.chain = requireNonNull(chain);
     }
 
     static LocalFrontendHistory create(final String persistenceId, final ShardDataTree tree,
@@ -55,18 +54,17 @@ final class LocalFrontendHistory extends AbstractFrontendHistory {
     }
 
     @Override
-    FrontendTransaction createOpenSnapshot(final TransactionIdentifier id) throws RequestException {
+    FrontendTransaction createOpenSnapshot(final TransactionIdentifier id) {
         return FrontendReadOnlyTransaction.create(this, chain.newReadOnlyTransaction(id));
     }
 
     @Override
-    FrontendTransaction createOpenTransaction(final TransactionIdentifier id) throws RequestException {
+    FrontendTransaction createOpenTransaction(final TransactionIdentifier id) {
         return FrontendReadWriteTransaction.createOpen(this, chain.newReadWriteTransaction(id));
     }
 
     @Override
-    FrontendTransaction createReadyTransaction(final TransactionIdentifier id, final DataTreeModification mod)
-            throws RequestException {
+    FrontendTransaction createReadyTransaction(final TransactionIdentifier id, final DataTreeModification mod) {
         return FrontendReadWriteTransaction.createReady(this, id, mod);
     }