Advanced – Non-Functional Testing
Thread Dump – ISTQB Definition
Last Updated: July 12, 2026 · SoftwareTestPilot QA Team
Official ISTQB Definition
A snapshot of all active JVM threads and their stack traces, used to diagnose deadlocks and hangs.
In simple words
A snapshot of every thread in the JVM — used to find deadlocks and hangs.
Exam tip
Take three thread dumps a few seconds apart to see which threads are stuck.
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