diff --git a/hudi-spark-datasource/hudi-spark/src/main/scala/org/apache/spark/sql/hudi/command/procedures/CommitsCompareProcedure.scala b/hudi-spark-datasource/hudi-spark/src/main/scala/org/apache/spark/sql/hudi/command/procedures/CommitsCompareProcedure.scala
index 62330cb54c6d6..86262dc302c1b 100644
--- a/hudi-spark-datasource/hudi-spark/src/main/scala/org/apache/spark/sql/hudi/command/procedures/CommitsCompareProcedure.scala
+++ b/hudi-spark-datasource/hudi-spark/src/main/scala/org/apache/spark/sql/hudi/command/procedures/CommitsCompareProcedure.scala
@@ -54,17 +54,15 @@ class CommitsCompareProcedure() extends BaseProcedure with ProcedureBuilder {
     val sourceTimeline = source.getActiveTimeline.getCommitsTimeline.filterCompletedInstants
     val targetTimeline = target.getActiveTimeline.getCommitsTimeline.filterCompletedInstants
     val targetLatestCommit =
-      if (targetTimeline.getInstants.iterator.hasNext) targetTimeline.lastInstant.get.getTimestamp
-      else "0"
+      if (targetTimeline.getInstants.iterator.hasNext) targetTimeline.lastInstant.get.getTimestamp else "0"
     val sourceLatestCommit =
-      if (sourceTimeline.getInstants.iterator.hasNext) sourceTimeline.lastInstant.get.getTimestamp
-      else "0"
+      if (sourceTimeline.getInstants.iterator.hasNext) sourceTimeline.lastInstant.get.getTimestamp else "0"
 
     if (sourceLatestCommit != null && HoodieTimeline.compareTimestamps(targetLatestCommit, HoodieTimeline.GREATER_THAN, sourceLatestCommit)) { // source is behind the target
-      val commitsToCatchup = targetTimeline.findInstantsAfter(sourceLatestCommit, Integer.MAX_VALUE).getInstants.iterator().asScala.map(instant => instant.getTimestamp)
+      val commitsToCatchup = targetTimeline.findInstantsAfter(sourceLatestCommit, Integer.MAX_VALUE).getInstants.iterator().asScala.map(instant => instant.getTimestamp).toList.asJava
       Seq(Row("Source " + source.getTableConfig.getTableName + " is behind by " + commitsToCatchup.size + " commits. Commits to catch up - " + commitsToCatchup))
     } else {
-      val commitsToCatchup = sourceTimeline.findInstantsAfter(targetLatestCommit, Integer.MAX_VALUE).getInstants.iterator().asScala.map(instant => instant.getTimestamp)
+      val commitsToCatchup = sourceTimeline.findInstantsAfter(targetLatestCommit, Integer.MAX_VALUE).getInstants.iterator().asScala.map(instant => instant.getTimestamp).toList.asJava
       Seq(Row("Source " + source.getTableConfig.getTableName + " is ahead by " + commitsToCatchup.size + " commits. Commits to catch up - " + commitsToCatchup))
     }
   }