EPISODE · Apr 4, 2026 · 4 MIN
"Analyzing Crashed JVMs" [IJN]
from Inside Java · host Nicolai Parlog
The Java tool jcmd ("j command") sends diagnostic commands to the JVM, which will react by supplying the desired information: from finalizer queues to heap and thread dumps, from GC insights to virtual thread scheduler statistics. At the moment, this requires a running JVM, but once candidate JEP 528 is adopted, a lot of that information can be seamlessly extracted from a crashed JVM's core dump, allowing easy post-mortem analysis.
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"Analyzing Crashed JVMs" [IJN]
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