[STORM-8585] fix additional violations surfaced by the BoxComments check

Same fix as the earlier BoxComments cleanup: replace box-border
comments with plain single-line comments in files that hadn't been
touched yet.

Author: sercuzz8

external/storm-kafka-monitor/src/main/java/org/apache/storm/kafka/monitor/KafkaPartitionOffsetLag.java

@@ -1,4 +1,4 @@
-/*******************************************************************************
+/*
  * Licensed to the Apache Software Foundation (ASF) under one
  * or more contributor license agreements.  See the NOTICE file
  * distributed with this work for additional information
@@ -14,7 +14,7 @@
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  * See the License for the specific language governing permissions and
  * limitations under the License.
- *******************************************************************************/
+ */
 
 package org.apache.storm.kafka.monitor;
 

storm-server/src/main/java/org/apache/storm/stats/StatsUtil.java

@@ -109,9 +109,7 @@ public class StatsUtil {
     private static final FromGlobalStreamIdTransformer FROM_GSID = new FromGlobalStreamIdTransformer();
 
 
-    // =====================================================================================
     // aggregation stats methods
-    // =====================================================================================
 
     /**
      * Aggregates number executed, process latency, and execute latency across all streams.
@@ -1315,9 +1313,7 @@ public static List<WorkerSummary> aggWorkerStats(String stormId, String stormNam
         return new ArrayList<WorkerSummary>(workerSummaryMap.values());
     }
 
-    // =====================================================================================
     // convert thrift stats to java maps
-    // =====================================================================================
 
     /**
      * convert thrift executor heartbeats into a java HashMap.
@@ -1478,9 +1474,7 @@ public static List<Map<String, Object>> extractNodeInfosFromHbForComp(
     }
 
 
-    // =====================================================================================
     // heartbeats related
-    // =====================================================================================
 
     /**
      * extracts a list of executor data from heart beats.
@@ -1873,9 +1867,7 @@ private static <K> Map<String, Map<K, List>> mergeWithAddPair(Map<String, Map<K,
         return ret;
     }
 
-    // =====================================================================================
     // thriftify stats methods
-    // =====================================================================================
 
     /**
      * Used for local test.
@@ -2089,9 +2081,7 @@ private static ExecutorSpecificStats thriftifySpecificStats(Map stats) {
     }
 
 
-    // =====================================================================================
     // helper methods
-    // =====================================================================================
 
     private static GlobalStreamId toGlobalStreamId(List list) {
         return new GlobalStreamId((String) list.get(0), (String) list.get(1));
@@ -2352,9 +2342,7 @@ private static ErrorInfo getLastError(IStormClusterState stormClusterState, Stri
     }
 
 
-    // =====================================================================================
     // key transformers
-    // =====================================================================================
 
     public static <K> Map windowSetConverter(Map stats, ClientStatsUtil.KeyTransformer<K> firstKeyFunc) {
         return ClientStatsUtil.windowSetConverter(stats, ClientStatsUtil.IDENTITY, firstKeyFunc);