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jdk 25

Zooming In: Profiling Just the Methods You Care About with JFR (JDK 25)

A N M Bazlur Rahman

Sometimes you don’t want a full JVM profile. You just want to understand a narrow slice of code: which methods are called, how long each call takes, and how time is distributed across a call chain. With JDK 25, JFR’s Method Trace and Method Timing events (introduced by JEP 520) make this possible....

java java performance java diagnostics jep 520 java flight recorder jfr method tracing jvm performance performance profiling application profiling jvm monitoring java engineering jdk 25 method timing

Java’s Structured Concurrency: Finally Finding Its Footing

A N M Bazlur Rahman

The structured concurrency API changed again after two incubations and four rounds of previews. Ideally, this scenario is unexpected. However, given its status as a preview API, such changes can occur, as was the case here. These changes lend considerable maturity to the API, and I am hopeful it...

jdk concurrency java error handling task management virtual threads project loom structured concurrency code readability concurrent programming getting started java concurrency joiner api asynchronous java jep 505 structuredtaskscope java development jdk 25 api evolution