BreakTest 2026.07.07

BreakTest 2026.07.07 is a focused desktop and reporting update built from the
changes since BreakTest 2026.07.03. It keeps the same Java 21+ baseline and
JMeter-compatible test-plan model while improving the day-to-day GUI workflow,
local settings management, validation, and live performance reporting.

Highlights

• Added a configurable Performance Report listener with percentile, throughput,
  bandwidth, error, and connect-time columns.
• Added a Settings dialog backed by the full JMeter properties catalog, with
  search, default/modified indicators, reset controls, and safe persistence to
  local override property files.
• Modernized the BreakTest desktop UI with a refreshed application icon,
  modern toolbar icons, cleaner tree rendering, improved menu organization, and
  better light/dark FlatLaf styling.
• Improved View Results Tree and validation ergonomics with detach/dock support,
  validation targeting, auto-detach controls, collapsible search/file panels,
  and comment visibility controls.
• Moved sampler-scoped HTTP headers into the HTTP Request sampler with
  automatic migration from child HTTP Header Manager elements.
• Fixed saved test plans with the new Performance Report listener so they
  reload correctly.
• Added child-count badges in the test-plan tree and compact Transaction
  Controller delay summaries beside transaction names.
• Added counts to HTTP Request Params, Headers, Body, and Files tabs so hidden
  request data is visible at a glance.

Performance Reporting

• Added a dedicated Performance Report visualizer for configurable live
  aggregate metrics.
• Added optional percentile columns including median, P75, P90, P95, and P99.
• Added controls to ignore error response times in response-time metrics.
• Added resource-use guidance for percentile columns, since they retain richer
  response-time distribution data while enabled.
• Added tests for column configuration, percentile tracking, error handling, and
  report reset behavior.

Settings Management

• Added a Settings page available from the GUI menu and toolbar.
• Added typed setting definitions, editors, grouping, search, default-value
  display, modified badges, and reset/save actions.
• Added a full settings catalog resource for JMeter/BreakTest properties.
• Persisted changes to local user/system override properties rather than
  modifying the bundled jmeter.properties file.
• Added tests for catalog loading, property storage, and model behavior.

Desktop UI And Validation

• Refreshed the main frame, toolbar, menu factory, tree renderer, logger panel,
  target-rate chart, and scripting log presentation.
• Added modern SVG toolbar assets and updated icon mappings for common actions.
• Improved validation controls so selected thread groups can be targeted more
  directly.
• Added View Results Tree detach/dock workflows and clearer validation result
  viewing.
• Added native HTTP Request headers so sampler-specific headers live on the
  request itself, while higher-level Header Managers still apply by scope.
• Updated the Transaction Controller icon so it reads as a transaction span
  rather than a small generic controller/action glyph.
• Added direct-child count badges to tree nodes and compact delay summaries for
  Transaction Controllers with built-in delay.
• Added value counts to HTTP Request data tabs for Params, Headers, Body, and
  Files.
• Added tests around tree-listener behavior.

Compatibility Notes

• Java 21 or later is still required.
• Existing JMeter-compatible JMX files remain supported where practical.
• Percentile columns in the Performance Report intentionally keep additional
  response-time history only while those columns are selected.
• Most Settings changes are written as local overrides and take effect after
  restarting BreakTest.

Security Notes

BreakTest continues to use the trusted-test-plan model. Treat JMX files as
executable input and run untrusted plans only in an isolated environment. See
SECURITY.md and THREAT_MODEL.md.