Ensures time compensation is not less than checkpointRestoreTimeDelta

Ensure the time compensation in milliseconds is not less than the
checkpoint restore time delta.

Signed-off-by: Jason Feng <fengj@ca.ibm.com>

src/java.base/share/classes/java/util/Timer.java

@@ -588,7 +588,9 @@ private void mainLoop() {
  // A zero checkpointRestoreTimeDelta value indicates no Checkpoint performed yet,
  // it can't be negative, otherwise a RestoreException already was thrown.
  if (checkpointRestoreTimeDelta > 0) {
+ // Ensure the time compensation in milliseconds is not less than the checkpoint restore time delta.
  task.nextExecutionTime += (checkpointRestoreTimeDelta / 1000000);
+ task.nextExecutionTime += ((checkpointRestoreTimeDelta % 1000000 == 0) ? 0 : 1);
  // clear the flag - only one time adjustment required
  task.criuAdjustRequired = false;
  }