Blazemeter/jmeter-http-plugin release v3.1.0

[Baraujo25]

BlazeMeter HTTP v3.1.0

Compatibility & parity release focused on deeper JMeter alignment, improved SSL/HTTP handling, and a new migration tool.

Highlights

• Stronger SSL KeyStore / TrustStore support with graceful failure handling
• Full HEAD method support and improved User-Agent handling
• New headless CLI migration tool to convert stock JMeter HTTP samplers → BlazeMeter HTTP
• Better HTTP/2 cleartext (h2c) negotiation + fallback
• RFC 9110–aligned redirection behavior
• Lazy loading of HTTP response parsers and improved performance

Key Improvements

• JMeter parity: Many behaviors now match stock JMeter more closely (headers, keep-alive, cookies, multipart, redirects, embedded resources, cached resources, etc.)
• Robustness: Better exception handling, connection management, deflate/zlib decoding, and post-redirect header handling
• Developer experience: Migration CLI tool + improved controlled execution / thread drop-off
• Dependency updates (Jetty 12.1.11, commons-lang3, AssertJ, Guava) and various stability fixes

What's Changed (v3.1.0)

• Improvements and alignment to JMeter for SSL KeyStore and TrustStore support by @3dgiordano in Improvements and alignment to JMeter for SSL KeyStore and TrustStore support. Blazemeter/jmeter-http-plugin#112
• Gracefully handle keystore load failures and reinitialize SSLManager by @3dgiordano in Gracefully handle keystore load failures and reinitialize SSLManager Blazemeter/jmeter-http-plugin#115
• Preserve pre-decoding headers by @3dgiordano in Preserve pre-decoding headers Blazemeter/jmeter-http-plugin#107
• Preserve connection keep-alive for JMeter compatibility by @3dgiordano in Preserve connection keep-alive for JMeter compatibility Blazemeter/jmeter-http-plugin#116
• Handle HPACK errors and set dynamic response header size by @3dgiordano in Handle HPACK errors and set dynamic response header size Blazemeter/jmeter-http-plugin#114
• Bump org.apache.commons:commons-lang3 from 3.12.0 to 3.18.0 by @dependabot in Bump org.apache.commons:commons-lang3 from 3.12.0 to 3.18.0 Blazemeter/jmeter-http-plugin#104
• Update Jetty version from 12.1.6 to 12.1.7 by @3dgiordano in Update Jetty version from 12.1.6 to 12.1.7 Blazemeter/jmeter-http-plugin#119
• Bump org.assertj:assertj-core from 3.12.2 to 3.27.7 by @dependabot in Bump org.assertj:assertj-core from 3.12.2 to 3.27.7 Blazemeter/jmeter-http-plugin#105
• Bump guava from 29.0-jre to 32.0.0-jre by @dependabot in Bump guava from 29.0-jre to 32.0.0-jre Blazemeter/jmeter-http-plugin#52
• Allow 401 status without requiring HTTP authentication by @3dgiordano in Allow 401 status without requiring HTTP authentication Blazemeter/jmeter-http-plugin#120
• Add user agent when default_user_agent_disabled is false by @3dgiordano in Add user agent when default_user_agent_disabled is false Blazemeter/jmeter-http-plugin#123
• Implement support for HEAD HTTP method by @3dgiordano in Implement support for HEAD HTTP method Blazemeter/jmeter-http-plugin#122
• Customize HPACK header validation by @3dgiordano in Customize HPACK header validation Blazemeter/jmeter-http-plugin#121
• Delegate cached-resource sample result to JMeter HTTPHC4Impl by @3dgiordano in Delegate cached-resource sample result to JMeter HTTPHC4Impl Blazemeter/jmeter-http-plugin#125
• Decode both zlib-wrapped and raw deflate content by @3dgiordano in Decode both zlib-wrapped and raw deflate content Blazemeter/jmeter-http-plugin#126
• Fix User-Agent is the last request header by @3dgiordano in Fix User-Agent is the last request header Blazemeter/jmeter-http-plugin#128
• Harden HTTP/2 cleartext (h2c) upgrade negotiation and fallback by @3dgiordano in Harden HTTP/2 cleartext (h2c) upgrade negotiation and fallback Blazemeter/jmeter-http-plugin#127
• Fix exception handling for requests with only Cookie header by @3dgiordano in Fix exception handling for requests with only Cookie header Blazemeter/jmeter-http-plugin#129
• Enhance handling of post-redirect request headers and sentBytes by @3dgiordano in Enhance handling of post-redirect request headers and sentBytes Blazemeter/jmeter-http-plugin#134
• Catch Cookie header without using CookieManager by @3dgiordano in Catch Cookie header without using CookieManager Blazemeter/jmeter-http-plugin#130
• Fix multipart header casing and raw argument values by @3dgiordano in Fix multipart header casing and raw argument values Blazemeter/jmeter-http-plugin#133
• Load HTTP response parsers lazily by @3dgiordano in Load HTTP response parsers lazily Blazemeter/jmeter-http-plugin#137
• Support file:// URLs in sampler by @3dgiordano in Support file:// URLs in sampler Blazemeter/jmeter-http-plugin#136
• Resolve HTTP file arguments in FileServer by @3dgiordano in Resolve HTTP file arguments in FileServer Blazemeter/jmeter-http-plugin#135
• Fix Content-Type check and gate request body attachment by @3dgiordano in Fix Content-Type check and gate request body attachment Blazemeter/jmeter-http-plugin#132
• Remove duplicate fallback and fix stale body reuse by @3dgiordano in Remove duplicate fallback and fix stale body reuse Blazemeter/jmeter-http-plugin#131
• Map Jetty client failures to HttpClient4 exception types by @3dgiordano in Map Jetty client failures to HttpClient4 exception types Blazemeter/jmeter-http-plugin#138
• Add headless CLI tool to migrate stock JMeter HTTP samplers to BlazeMeter HTTP by @3dgiordano in Add headless CLI tool to migrate stock JMeter HTTP samplers to BlazeMeter HTTP Blazemeter/jmeter-http-plugin#139
• Set default minimum JMeter version to 5.5 for compatibility tests by @3dgiordano in Set default minimum JMeter version to 5.5 for compatibility tests Blazemeter/jmeter-http-plugin#140
• Restore original settings on exception by @3dgiordano in Restore original settings on exception Blazemeter/jmeter-http-plugin#141
• Implement RFC 9110 redirection and update legacy JMeter redirect by @3dgiordano in Implement RFC 9110 redirection and update legacy JMeter redirect Blazemeter/jmeter-http-plugin#142
• Set default maxBufferSize to unlimited with warning and truncation by @3dgiordano in Set default maxBufferSize to unlimited with warning and truncation Blazemeter/jmeter-http-plugin#146
• Improve negotiation logic and embed hanging functionality by @3dgiordano in Improve negotiation logic and embed hanging functionality Blazemeter/jmeter-http-plugin#148
• Fix flaky test execution by @3dgiordano in Fix flaky test execution Blazemeter/jmeter-http-plugin#149
• Improve controlled execution thread drop-off by @3dgiordano in Improve controlled execution thread drop-off Blazemeter/jmeter-http-plugin#150
• HTTP parity regression by @3dgiordano in HTTP parity regression Blazemeter/jmeter-http-plugin#113
• Improvements for timers and preprocessors in the Async Controller by @3dgiordano in Improvements for timers and preprocessors in the Async Controller Blazemeter/jmeter-http-plugin#109
• Align Embedded Resource logic with JMeter by @3dgiordano in Align Embedded Resource logic with JMeter Blazemeter/jmeter-http-plugin#151
• Enhance application performance by @3dgiordano in Enhance application performance Blazemeter/jmeter-http-plugin#152
• Release v3.1.0 by @3dgiordano in Release v3.1.0 Blazemeter/jmeter-http-plugin#143

Thanks to the users @Pill30 and @heysarthak for all the feedback provided.

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Recommended for all users. This release significantly improves JMeter compatibility and adds useful migration tooling.

Enjoy the new version! 🚀

Full Changelog: Blazemeter/jmeter-http-plugin@v3.0.1...v3.1.0