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Chapter 13. Viewing diagnostics
Use the Diagnostics tab to view diagnostic information about the JVM via the JVM DiagnosticCommand and HotspotDiangostic interfaces.
Note
The functionality is similar to the Diagnostic Commands view in Java Mission Control (jmc) or the command line tool jcmd. The plugin will provide corresponding jcmd commands in some scenarios.
Procedure
- To retrieve the number of instances of loaded classes and the amount of bytes they take up, click Class Histogram. If the operation is repeated, the tab shows the difference since last run.
- To view the JVM diagnostic flag setting, click the JVM flags.
- For a running JVM, you can also modify the flag settings.
Additional resources
The supported JVM depends on the platform, for more information go to one of the following sources:
