Fixed empty offsets

Author: germanosin

api/src/main/java/io/kafbat/ui/model/InternalTopic.java

@@ -157,6 +157,8 @@ public static InternalTopic from(ScrapedClusterState.TopicState topicState,
                 topicState.endOffsets().get(p.partition())
             )
         )
+    ).filter( e ->
+            e.getValue().getEarliest() != null && e.getValue().getLatest() != null
     ).collect(Collectors.toMap(Map.Entry::getKey, Map.Entry::getValue));
 
     return from(

api/src/test/java/io/kafbat/ui/service/TopicsServicePaginationTest.java

@@ -80,6 +80,8 @@ private void init(Map<String, InternalTopic> topicsInCache) {
                             new InternalPartitionsOffsets.Offsets(p.getOffsetMin(), p.getOffsetMax())
                         )
                 )
+        ).filter( e ->
+            e.getValue().getEarliest() != null && e.getValue().getLatest() != null
         ).collect(Collectors.toMap(Map.Entry::getKey, Map.Entry::getValue));
 
     statisticsCache.update(