News and views from members of the Java team at Oracle
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.
dev.java: the destination for Java developers
OpenJDK: the place to collaborate on the Java Platform and related projects
Oracle Java: the #1 programming language and development platform
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