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Asserting JDK Flight Recorder Events with JfrUnit
JfrUnit may be used to verify whether or not events occurred that impact the performance of the application such as garbage collection and memory allocation. JfrUnit makes it possible to assert events emitted from the application such as memory allocation, IO, or database queries. Custom events may be created with the JMC agent for libraries that don’t emit events themselves.
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Java News Roundup - Week of June 21st, 2021
This week’s roundup features news from JDK 17, JDK 18, Java Mission Control 8.0.1, Kotlin 1.5.20, Hibernate Reactive 1.0.0.CR7, PrimeFaces 6.2.30, 8.0.11, and 10.0.3, Eclipse GlassFish 6.2.0, WildFly 24, Micronaut 3.0.0-M2, and multiple point releases on several Spring projects.
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Java Flight Recorder Coming to OpenJDK 8
Java Flight Recorder, originally open sourced in Open JDK 11, is being backported into the mainline Open JDK 8 tree as it comes out of its early access release. Together with JMC 7.1, available from Azul, flight recorder profiling will become accessible to users of both Open JDK 8 and Open JDK 11.
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New Details Emerge Regarding Oracle’s Layoff of Java Mission Control Team
Following our story last week that Oracle was laying off most of the Java Mission Control Team after open-sourcing the product, a former Oracle employee provided us with some additional information regarding the turn of events.
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Oracle Lays off Java Mission Control Team after Open Sourcing Product
The Java Mission Control suite of tools, also known as JMC, was open sourced by Oracle on May 3rd with much applause and excitement from the Java development community. The excitement was replaced with unease as sources reported that the entire JMC development team was laid off.
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JAX London: Production Time Profiling Using Java Flight Recorder
During JAX London 2016, Ola Westin of Oracle provided an insight into Java Mission Control.