Created attachment 34890 [details] A sampler example Using HttpClient4 implementation for GET-requests with no arguments adds Content-Type and Content-Length headers unconditionally: Content-Length: 0 Content-Type: text/plain; charset=UTF-8 Initially a sampler has 'Accept: application/json, text/plain, */*' header, as was captured from browser traffic by HTTP Proxy Server component. Adding the 'Content-Type' header causes 415 HTTP error for our web-application. There is no error for 3.0 JMeter version and earlier.
*** This bug has been marked as a duplicate of bug 60575 ***
Hello, Issue is fixed in nightly build which is close to release. You can try it and give us feedback. Thanks @ubikloadpack
(In reply to UbikLoadPack support from comment #2) > Hello, > Issue is fixed in nightly build which is close to release. > You can try it and give us feedback. > Thanks > @ubikloadpack Tested on r1789608 build. It's OK. Thanks
This issue has been migrated to GitHub: https://github.com/apache/jmeter/issues/4354