fix dynamic graph not bind to gremlin

[javeme]

Change-Id: If6c3b51b5f8b5a233a08db30564a02cd406bd400

[codecov]

Codecov Report

Merging #1716 (3887e2d) into master (08bb09e) will increase coverage by 0.35%.
The diff coverage is 0.00%.

@@             Coverage Diff              @@
##             master    #1716      +/-   ##
============================================
+ Coverage     66.56%   66.92%   +0.35%     
- Complexity     7090     7110      +20     
============================================
  Files           423      423              
  Lines         35590    35596       +6     
  Branches       4959     4959              
============================================
+ Hits          23691    23821     +130     
+ Misses         9503     9376     -127     
- Partials       2396     2399       +3     

Impacted Files	Coverage Δ
...com/baidu/hugegraph/auth/ContextGremlinServer.java	29.41% <0.00%> (-2.85%)	⬇️
...va/com/baidu/hugegraph/auth/HugeAuthenticator.java	34.78% <0.00%> (-5.44%)	⬇️
...in/java/com/baidu/hugegraph/auth/HugeResource.java	77.92% <0.00%> (-1.30%)	⬇️
...va/com/baidu/hugegraph/util/collection/IntSet.java	74.04% <0.00%> (-1.28%)	⬇️
.../java/com/baidu/hugegraph/auth/RolePermission.java	90.58% <0.00%> (-1.18%)	⬇️
...c/main/java/com/baidu/hugegraph/task/HugeTask.java	72.00% <0.00%> (-0.31%)	⬇️
.../baidu/hugegraph/backend/query/ConditionQuery.java	85.97% <0.00%> (+0.26%)	⬆️
...va/com/baidu/hugegraph/backend/cache/RamCache.java	73.03% <0.00%> (+0.56%)	⬆️
.../backend/store/cassandra/CassandraSessionPool.java	57.14% <0.00%> (+1.02%)	⬆️
...ain/java/com/baidu/hugegraph/task/TaskManager.java	70.50% <0.00%> (+1.43%)	⬆️
... and 5 more

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