[BugFix] GAE JavaDoc not generated

[zhanglei1949]

The GAE Java doc not generated due to javadoc path error.

[codecov-commenter]

Codecov Report

Merging #2206 (f911a89) into main (abdd5c9) will decrease coverage by 1.24%.
The diff coverage is n/a.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #2206      +/-   ##
==========================================
- Coverage   72.95%   71.71%   -1.25%     
==========================================
  Files          89       89              
  Lines        9789     9789              
==========================================
- Hits         7142     7020     -122     
- Misses       2647     2769     +122     

Impacted Files	Coverage Δ
python/graphscope/tests/unittest/test_java_app.py	53.01% <0.00%> (-46.99%)	⬇️
python/graphscope/analytical/app/java_app.py	24.36% <0.00%> (-27.92%)	⬇️
python/graphscope/client/rpc.py	83.20% <0.00%> (-3.06%)	⬇️
python/graphscope/framework/graph_utils.py	80.15% <0.00%> (-2.39%)	⬇️
python/graphscope/client/session.py	74.95% <0.00%> (-1.52%)	⬇️
python/graphscope/framework/app.py	90.32% <0.00%> (-1.39%)	⬇️
python/graphscope/framework/utils.py	66.40% <0.00%> (-1.05%)	⬇️
python/graphscope/deploy/kubernetes/utils.py	69.52% <0.00%> (-0.96%)	⬇️
python/graphscope/framework/graph_schema.py	64.61% <0.00%> (-0.23%)	⬇️

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[sighingnow]

Could you please add a --quite option to mvn in https://github.com/alibaba/GraphScope/blob/main/docs/Makefile#L42?

Thanks!