[hotfix][rest] Remove redundant comments in SubtaskStateStats

flink-runtime/src/main/java/org/apache/flink/runtime/checkpoint/SubtaskStateStats.java

@@ -36,7 +36,6 @@ public class SubtaskStateStats implements Serializable {
 
  private static final long serialVersionUID = 8928594531621862214L;
 
- /** Index of this sub task. */
  private final int subtaskIndex;
 
  /**
@@ -60,17 +59,6 @@ public class SubtaskStateStats implements Serializable {
  /** Alignment duration in . */
  private final long alignmentDuration;
 
- /**
- * Creates the stats for a single subtask.
- *
- * @param subtaskIndex Index of the subtask.
- * @param ackTimestamp Timestamp when the acknowledgement of this subtask was received at the coordinator.
- * @param stateSize Size of the checkpointed state at this subtask.
- * @param syncCheckpointDuration Checkpoint duration at the task (synchronous part)
- * @param asyncCheckpointDuration Checkpoint duration at the task (asynchronous part)
- * @param alignmentBuffered Bytes buffered during stream alignment (for exactly-once only).
- * @param alignmentDuration Duration of the stream alignment (for exactly-once only).
- */
  SubtaskStateStats(
  int subtaskIndex,
  long ackTimestamp,
@@ -91,11 +79,6 @@ public class SubtaskStateStats implements Serializable {
  this.alignmentDuration = alignmentDuration;
  }
 
- /**
- * Returns the subtask index.
- *
- * @return Subtask index.
- */
  public int getSubtaskIndex() {
  return subtaskIndex;
  }
@@ -133,45 +116,32 @@ public long getEndToEndDuration(long triggerTimestamp) {
  }
 
  /**
- * Returns the duration of the synchronous part of the checkpoint.
- *
- * <p>Can return <code>-1</code> if the runtime did not report this.
- *
- * @return Duration of the synchronous part of the checkpoint or <code>-1</code>.
+ * @return Duration of the synchronous part of the checkpoint or <code>-1</code> if the runtime
+ * did not report this.
  */
  public long getSyncCheckpointDuration() {
  return syncCheckpointDuration;
  }
 
  /**
- * Returns the duration of the asynchronous part of the checkpoint.
- *
- * <p>Can return <code>-1</code> if the runtime did not report this.
- *
- * @return Duration of the asynchronous part of the checkpoint or <code>-1</code>.
+ * @return Duration of the asynchronous part of the checkpoint or <code>-1</code> if the runtime
+ * did not report this.
  */
  public long getAsyncCheckpointDuration() {
  return asyncCheckpointDuration;
  }
 
  /**
- * Returns the number of bytes buffered during stream alignment (for
- * exactly-once only).
- *
- * <p>Can return <code>-1</code> if the runtime did not report this.
- *
- * @return Number of bytes buffered during stream alignment or <code>-1</code>.
+ * @return Number of bytes buffered during stream alignment (for exactly-once only) or
+ * <code>-1</code> if the runtime did not report this.
  */
  public long getAlignmentBuffered() {
  return alignmentBuffered;
  }
 
  /**
- * Returns the duration of the stream alignment (for exactly-once only).
- *
- * <p>Can return <code>-1</code> if the runtime did not report this.
- *
- * @return Duration of the stream alignment or <code>-1</code>.
+ * @return Duration of the stream alignment (for exactly-once only) or <code>-1</code> if the
+ * runtime did not report this.
  */
  public long getAlignmentDuration() {
  return alignmentDuration;