forked from loafle/openapi-generator-original
* Allow Java apache-httpclient users to supply additional HTTP headers per API call
* fix 'unexpected return value' problem
* make "fullJavaUtil" work
* Revert 'make "fullJavaUtil" work'
This reverts commit 60c8846.
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Co-authored-by: Jigar Joshi <jigarjm@gmail.com>