JMeter 5.1.1 Release Notes

About these release notes

This page lists every documented change shipped in Apache JMeter 5.1.1, generated from the official changelog. For download and upgrade guidance, see Download JMeter.

Change summary

Section	Changes
Improvements	6
Bug fixes	10
Non-functional changes	4

New and Noteworthy

This release is mainly a bugfix release. Please see the Changes history page to view the last major behaviors with the version 5.1.

Live Reporting and Web Report

A new menu entry has been added to the Tools menu. It’s allow to generate a results report from a previous CSV/JTL file.

Incompatible changes

Improvements

HTTP Samplers and Test Script Recorder

• Bug 62977Allow sending HTTP requests without a default User-Agent header

Other samplers

• Bug 63185LDAP related elements: Add option to implicitly trust SSL/TLS connections/Disable hostname verification. Based on contribution by Brian Wolfe (wolfebrian2120 at gmail.com)

Controllers

Listeners

Timers, Assertions, Config, Pre- & Post-Processors

• Bug 63178CSS Selector Extractor: Improve performance of JODD (JoddExtractor) based implementation

Functions

I18N

Report / Dashboard

• Bug 59896 Report / Dashboard: Add a menu entry to generate a report on demand from a CSV file. Contributed by Ubik Load Pack (support at ubikloadpack.com)

General

• PR#444Update to latest Spock v1.2 (was 1.0). Contributed by Graham Russell (graham at ham1.co.uk)
• PR#446Improve Unit tests readability and use of Spock. Contributed by Graham Russell (graham at ham1.co.uk)

Bug fixes

HTTP Samplers and Test Script Recorder

Other Samplers

• Bug 63202JMS Publisher: ObjectMessageRenderer creates XStream instance with uninitialized security

Controllers

Listeners

• Bug 63204RenderAsJSON#prettyJSON: JSONParser#parse cannot return JSONValue

Timers, Assertions, Config, Pre- & Post-Processors

• Bug 62446Counter documentation is wrong in required fieds. Contributed by orimarko at gmail.com
• Bug 62327TestPlan: In library table if path is modified and plan saved, the modification is lost on file reload

Functions

• Bug 63241__threadGroupName causes a NullPointerException if called from non Test threads

I18N

Report / Dashboard

• Bug 63198Response Time Vs Request and Latency Vs Request graphs don’t line up with throughput. Contributed by Ubik Load Pack (support at ubikloadpack.com)

Documentation

General

• Bug 63201SearchTreeDialog disappears behind master JFrame. Contributed by Benoit Vatan (benoit.vatan at gmail.com)
• Bug 63220Function Helper Dialog, Export transactions for report and Import from cURL disappear being master JFrame. Contributed by Ubik Load Pack (support at ubikloadpack.com)
• Bug 63207java.lang.NullPointerException: null when run JMeter 5.1 with proxy options
• Bug 58183Rampup may not be respected if thread take time to start leading to threads continuing to start post ramp up time

Non-functional changes

• Bug 63203Unit Tests: Replace use of @Deprecated by @VisibleForTesting for methods/constructors/classes made public for Unit Testing only
• PR#449Refactor and Test ResponseTimePercentilesOverTimeGraphConsumer. Contributed by Graham Russell (graham at ham1.co.uk)
• PR#450Abstract graph consumer improvements. Contributed by Graham Russell (graham at ham1.co.uk)
• PR#451Improve a few unit tests and classes. Contributed by Graham Russell (graham at ham1.co.uk)

Thanks

We thank all contributors mentioned in bug and improvement sections above:

• Ubik Load Pack
• Benoit Vatan (benoit.vatan at gmail.com)
• Graham Russell (graham at ham1.co.uk)
• Brian Wolfe (wolfebrian2120 at gmail.com)
• orimarko at gmail.com

We also thank bug reporters who helped us improve JMeter.

Apologies if we have omitted anyone else.

Useful links

• Download JMeter
• Getting started guide
• All release notes
• Current changes page
• History of previous changes