Re-factor and cleanup Coop Lock implementation

[medb]

No description provided.

[codecov]

Codecov Report

❗ No coverage uploaded for pull request base (master@a91ed84). Click here to learn what that means.
The diff coverage is 35.55%.

@@            Coverage Diff            @@
##             master     #204   +/-   ##
=========================================
  Coverage          ?   73.92%           
  Complexity        ?     1781           
=========================================
  Files             ?      118           
  Lines             ?     8520           
  Branches          ?     1082           
=========================================
  Hits              ?     6298           
  Misses            ?     1794           
  Partials          ?      428

Flag	Coverage Δ	Complexity Δ
#hadoop2integrationtest	52.8% <35.55%> (?)	1093 <30> (?)
#hadoop2unittest	66.21% <9.17%> (?)	1599 <2> (?)
#hadoop3unittest	66.2% <9.17%> (?)	1603 <2> (?)

Impacted Files	Coverage Δ	Complexity Δ
...e/cloud/hadoop/gcsio/cooplock/DeleteOperation.java	37.5% <ø> (ø)	5 <0> (?)
...e/cloud/hadoop/gcsio/cooplock/RenameOperation.java	36% <ø> (ø)	7 <0> (?)
...oud/hadoop/gcsio/ForwardingGoogleCloudStorage.java	97.4% <ø> (ø)	31 <0> (?)
...e/cloud/hadoop/gcsio/cooplock/CoopLockRecords.java	50% <ø> (ø)	4 <0> (?)
...google/cloud/hadoop/fs/gcs/CoopLockFsckRunner.java	0% <0%> (ø)	0 <0> (?)
...a/com/google/cloud/hadoop/fs/gcs/CoopLockFsck.java	0% <0%> (ø)	0 <0> (?)
...d/hadoop/gcsio/cooplock/CoopLockOperationType.java	100% <100%> (ø)	1 <1> (?)
...le/cloud/hadoop/gcsio/cooplock/CoopLockRecord.java	57.14% <50%> (ø)	9 <3> (?)
...loud/hadoop/gcsio/cooplock/CoopLockRecordsDao.java	58.22% <58.33%> (ø)	18 <7> (?)
...hadoop/gcsio/cooplock/CoopLockOperationRename.java	62.22% <62.22%> (ø)	7 <7> (?)
... and 3 more

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