fix cassandra&rocksdb&scylladb code checkstyle

[z7658329]

fix cassandra&rocksdb&scylladb code checkstyle

[codecov]

Codecov Report

Merging #1847 (4efc58f) into master (0ed2e3b) will increase coverage by 0.26%.
The diff coverage is 73.68%.

@@             Coverage Diff              @@
##             master    #1847      +/-   ##
============================================
+ Coverage     70.70%   70.96%   +0.26%     
  Complexity      980      980              
============================================
  Files           447      447              
  Lines         38041    38076      +35     
  Branches       5389     5401      +12     
============================================
+ Hits          26897    27021     +124     
+ Misses         8508     8408     -100     
- Partials       2636     2647      +11     

Impacted Files	Coverage Δ
...ugegraph/backend/store/rocksdb/RocksDBOptions.java	99.25% <ø> (ø)
...raph/backend/store/rocksdb/RocksDBStdSessions.java	76.63% <0.00%> (+0.14%)	⬆️
...hugegraph/backend/store/rocksdb/RocksDBTables.java	74.84% <33.33%> (-1.89%)	⬇️
.../backend/store/cassandra/CassandraSessionPool.java	59.00% <50.00%> (-0.60%)	⬇️
...egraph/backend/store/cassandra/CassandraTable.java	79.86% <50.00%> (ø)
...egraph/backend/store/cassandra/CassandraStore.java	74.28% <75.00%> (ø)
...egraph/backend/store/cassandra/CassandraShard.java	54.54% <100.00%> (+1.81%)	⬆️
...ugegraph/backend/store/rocksdb/RocksDBMetrics.java	85.86% <100.00%> (ø)
...gegraph/backend/store/rocksdb/RocksDBSessions.java	100.00% <100.00%> (ø)
...h/backend/store/scylladb/ScyllaDBTablesWithMV.java	96.03% <100.00%> (ø)
... and 27 more

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[javeme]

Still need to fix code logic changes