[AutoPR monitor/resource-manager] Monitor: added tags for Java, created Java readme

[AutorestCI]

Created to sync Azure/azure-rest-api-specs#6157

[codecov-io]

Codecov Report

Merging #5545 into restapi_auto_monitor/resource-manager will increase coverage by 0.98%.
The diff coverage is n/a.

@@                            Coverage Diff                            @@
##           restapi_auto_monitor/resource-manager    #5545      +/-   ##
=========================================================================
+ Coverage                                  48.42%    49.4%   +0.98%     
=========================================================================
  Files                                       7448     6341    -1107     
  Lines                                     211644   176955   -34689     
=========================================================================
- Hits                                      102481    87422   -15059     
+ Misses                                    109163    89533   -19630

Impacted Files	Coverage Δ
...e-mgmt-netapp/azure/mgmt/netapp/models/__init__.py	60% <0%> (-12.92%)	⬇️
...azure/mgmt/eventhub/v2017_04_01/models/__init__.py	58.82% <0%> (-12.85%)	⬇️
...edia/azure/mgmt/media/models/job_input_clip_py3.py	60% <0%> (-11.43%)	⬇️
...ervicebus/azure/mgmt/servicebus/models/__init__.py	58.44% <0%> (-10.88%)	⬇️
...dia/azure/mgmt/media/models/job_input_asset_py3.py	62.5% <0%> (-10.23%)	⬇️
...dia/models/built_in_standard_encoder_preset_py3.py	62.5% <0%> (-10.23%)	⬇️
...-mgmt-media/azure/mgmt/media/models/overlay_py3.py	42.85% <0%> (-10.09%)	⬇️
...t-media/azure/mgmt/media/models/video_layer_py3.py	42.85% <0%> (-9.78%)	⬇️
...re-mgmt-media/azure/mgmt/media/models/image_py3.py	54.54% <0%> (-9.75%)	⬇️
...te/azure/mgmt/compute/compute_management_client.py	47.29% <0%> (-9.08%)	⬇️
... and 1236 more

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