diff --git a/java/runtime/src/main/java/org/ray/runtime/gcs/GcsClient.java b/java/runtime/src/main/java/org/ray/runtime/gcs/GcsClient.java
index c5f849a75144..d1050cbd9748 100644
--- a/java/runtime/src/main/java/org/ray/runtime/gcs/GcsClient.java
+++ b/java/runtime/src/main/java/org/ray/runtime/gcs/GcsClient.java
@@ -1,7 +1,6 @@
 package org.ray.runtime.gcs;
 
 import com.google.common.base.Preconditions;
-import com.google.common.collect.ImmutableMap;
 import com.google.protobuf.InvalidProtocolBufferException;
 import java.util.ArrayList;
 import java.util.HashMap;
@@ -76,12 +75,12 @@ public List<NodeInfo> getAllNodeInfo() {
       if (data.getIsInsertion()) {
         //Code path of node insertion.
         NodeInfo nodeInfo = new NodeInfo(
-            clientId, data.getNodeManagerAddress(), true, ImmutableMap.of());
+            clientId, data.getNodeManagerAddress(), true, new HashMap<>());
         clients.put(clientId, nodeInfo);
       } else {
         // Code path of node deletion.
         NodeInfo nodeInfo = new NodeInfo(clientId, clients.get(clientId).nodeAddress,
-            false, ImmutableMap.of());
+            false, new HashMap<>());
         clients.put(clientId, nodeInfo);
       }
     }