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Java 9: Building Robust Modular Applications
book

Java 9: Building Robust Modular Applications

by Dr. Edward Lavieri, Peter Verhas, Jason Lee
April 2018
Intermediate to advanced content levelIntermediate to advanced
910 pages
33h 21m
English
Packt Publishing
Content preview from Java 9: Building Robust Modular Applications

Diagnostic commands [JEP 228]

The Java Enhancement Proposal 228, Add More Diagnostic Commands, defined seven additional diagnostic commands to enhance the ability to diagnose the JDK and the JVM. The new diagnostic commands are detailed here.

The print_codegenlist command prints methods that are currently queued for compilation. Since c1 and c2 compilation modes are on separate queues, this command would need to be issued to a specific queue.

The dump_codelist diagnostic command will print the following listed information for the compiled methods:

  • Full signature
  • Address range
  • State
    • Alive
    • Nonentrant
    • Zombie

In addition, the dump_codelist diagnostic command allows the output to be directed to stdout or to a specified file. Output can be ...

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Publisher Resources

ISBN: 9781788832823Supplemental ContentOtherPurchase LinkErrata Page