andreoss

@rultor merge

@Shree-Gillorkar Clarified the issue.

@Shree-Gillorkar Are you going to make a PR for this issue?

@Shree-Gillorkar 1) Replace usages of `MultipartBodyBuilder` with `StringBuilder` 2) Remove `MultipartBodyBuilder`

Blocked by https://github.com/jcabi/jcabi-matchers/issues/40

@nishit-prasad Yes, you can.

@nishit-prasad Make sure you use the right version of JDK, which is 8

@gbham Can you provide a small reproducible it case familiar to https://github.com/jcabi/jcabi-aspects/tree/master/src/it/loggable to confirm this bug on the current master?

@nnordrum Would an extra constructor with `Map` parameter added in `AbstractHeaderBasedCachingWire` be enough? Note, only 4 `Map` methods are used by this class (`put`,`get`,`remove`, `contains`), so may be it should...

@yegor256 I would go with extra parameter to `CachingWire`, if you're okay with that https://github.com/jcabi/jcabi-http/issues/179#issuecomment-655242046