Created attachment 35012 [details] Test plan that reproduces this bug After fixed https://bz.apache.org/bugzilla/show_bug.cgi?id=60727 you didn't change the default implementation of CookieHandler in org.apache.jmeter.protocol.http.control.CookieManager#DEFAULT_IMPLEMENTATION field. If run
...If run attached test plan in non-gui mode it generate error sample, because JMeter try to find HC3CookieHandler class that was dropped. I think CookieManager#DEFAULT_IMPLEMENTATION should refer to CookiePanel#DEFAULT_IMPLEMENTATION.
Created attachment 35013 [details] Patch to fix this problem I created a patch that solves this problem
Resolved within Bug 61135 *** This bug has been marked as a duplicate of bug 61135 ***