https://lucene.apache.org/core/8_10_0/core/org/apache/lucene/index/MergePolicy.OneMergeProgress.PauseReason.html
MergePolicy.OneMergeProgress.PauseReason (Lucene 8.10.0 API)
luceneapi
https://lucene.apache.org/core/7_0_0/core/org/apache/lucene/index/MergePolicy.OneMergeProgress.PauseReason.html
MergePolicy.OneMergeProgress.PauseReason (Lucene 7.0.0 API)
luceneapi