Do not reuse WebsocketServerSpec.Builder between requests for #2159

[Johannes-Rost]

A possible Fix for #2159

[codecov]

Codecov Report

Merging #2160 (e0eeea4) into master (329efa8) will increase coverage by 0.02%.
The diff coverage is 100.00%.

@@             Coverage Diff              @@
##             master    #2160      +/-   ##
============================================
+ Coverage     77.10%   77.13%   +0.02%     
- Complexity     1277     1279       +2     
============================================
  Files           164      164              
  Lines          4904     4906       +2     
  Branches        403      403              
============================================
+ Hits           3781     3784       +3     
  Misses          913      913              
+ Partials        210      209       -1     

Impacted Files	Coverage Δ	Complexity Δ
...cloud/gateway/config/GatewayAutoConfiguration.java	86.78% <100.00%> (+0.15%)	70.00 <0.00> (ø)
...eway/filter/factory/RetryGatewayFilterFactory.java	77.97% <0.00%> (+0.59%)	38.00% <0.00%> (+2.00%)

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[Johannes-Rost]

Could someone please comment if this pull request is acceptable as is or if I need to add or change something? The linked error currently prevents us from updating Spring Cloud Gateway to version 3.

[spencergibb]

Cherry picked to 2.2.x and merged forward to master.