Johannes Bechberger • 9/26/2025

Silencing JFR’s Startup Message

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This technical blog post addresses a specific Java development issue: why JFR emits INFO-level startup messages even when the default JVM log level is WARNING. It analyzes the relevant OpenJDK source code to explain the behavior and provides the solution: using the -Xlog:jfr+startup=error flag to silence these messages. It's a focused guide for developers tuning JFR logging output.

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#performance #Java #Logging
Silencing JFR’s Startup Message

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