Regression: RequestMappingHandlerAdapter with synchronizeOnSession=true calls invokeHandlerMethod twice [SPR-13999]

[spring-projects-issues]

Isto Nikula opened SPR-13999 and commented

First call on line 726, second 731.

https://github.com/spring-projects/spring-framework/blob/4.2.x/spring-webmvc/src/main/java/org/springframework/web/servlet/mvc/method/annotation/RequestMappingHandlerAdapter.java#L723;L731

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Affects: 4.2.5

Issue Links:

• Regression: @ResponseBody with Map result returns JSON array twice in case of synchronizeOnSession=true [SPR-13983] #18555 Regression: @ResponseBody with Map result returns JSON array twice in case of synchronizeOnSession=true ("is duplicated by")
• Handler method is called twice when synchronizeOnSession is true in RequestMappingHandlerAdaptor [SPR-14136] #18708 Handler method is called twice when synchronizeOnSession is true in RequestMappingHandlerAdaptor ("is duplicated by")
• ResponseEntity CacheControl ignored / extended by RequestMappingHandlerAdapter [SPR-13867] #18440 ResponseEntity CacheControl ignored / extended by RequestMappingHandlerAdapter

[spring-projects-issues]

Juergen Hoeller commented

This turns out to be a regression caused by the revised HTTP header handling introduced in 4.2.5 (#18440). Fixed for 4.2.6 now.

Juergen