Simplify code with new Map features

[controller.git] / opendaylight / md-sal / sal-akka-raft / src / test / java / org / opendaylight / controller / cluster / raft / utils / InMemoryJournal.java

diff --git a/opendaylight/md-sal/sal-akka-raft/src/test/java/org/opendaylight/controller/cluster/raft/utils/InMemoryJournal.java b/opendaylight/md-sal/sal-akka-raft/src/test/java/org/opendaylight/controller/cluster/raft/utils/InMemoryJournal.java
index c17c29c0fd1846ff0ad76a5299fe5bb10cd8c68e..9964ceb675081d88fdb5ced38e87933d3b9c16f6 100644 (file)
--- a/opendaylight/md-sal/sal-akka-raft/src/test/java/org/opendaylight/controller/cluster/raft/utils/InMemoryJournal.java
+++ b/opendaylight/md-sal/sal-akka-raft/src/test/java/org/opendaylight/controller/cluster/raft/utils/InMemoryJournal.java
@@ -12,12 +12,12 @@ import akka.persistence.AtomicWrite;
 import akka.persistence.PersistentImpl;
 import akka.persistence.PersistentRepr;
 import akka.persistence.journal.japi.AsyncWriteJournal;
-import com.google.common.collect.Maps;
 import com.google.common.util.concurrent.Uninterruptibles;
 import java.io.Serializable;
 import java.util.ArrayList;
 import java.util.Collections;
 import java.util.Iterator;
+import java.util.LinkedHashMap;
 import java.util.List;
 import java.util.Map;
 import java.util.Optional;
@@ -62,11 +62,7 @@ public class InMemoryJournal extends AsyncWriteJournal {
     }
 
     public static void addEntry(String persistenceId, long sequenceNr, Object data) {
-        Map<Long, Object> journal = JOURNALS.get(persistenceId);
-        if (journal == null) {
-            journal = Maps.newLinkedHashMap();
-            JOURNALS.put(persistenceId, journal);
-        }
+        Map<Long, Object> journal = JOURNALS.computeIfAbsent(persistenceId, k -> new LinkedHashMap<>());
 
         synchronized (journal) {
             journal.put(sequenceNr, data instanceof Serializable