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DevOps / Gradle8 Interview Questions

Define the Gradle daemon?

The Gradle daemon is a long-lived background process that keeps the JVM warm (classes loaded, JIT-compiled, caches populated) between build invocations, instead of starting a fresh JVM from scratch every time you run gradle or ./gradlew.

gradle --status        # list running daemons
gradle --stop           # stop all daemons
gradle build --no-daemon  # run without using a daemon

Because JVM startup and class loading are a meaningful fraction of a small build's total time, reusing an already-warmed-up daemon across consecutive builds gives a large practical speedup, especially noticeable on the second and later runs in a session. The daemon is enabled by default; disabling it (via --no-daemon or a CI-specific setting) is sometimes done deliberately in ephemeral CI containers where a fresh process every run and predictable resource cleanup matter more than daemon warm-up savings.

What is the main benefit of the Gradle daemon?
How do you run a Gradle build without using the daemon?

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