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Mastering Java 11

You're reading from   Mastering Java 11 Develop modular and secure Java applications using concurrency and advanced JDK libraries

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Product type Paperback
Published in Sep 2018
Publisher Packt
ISBN-13 9781789137613
Length 462 pages
Edition 2nd Edition
Languages
Tools
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Authors (2):
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Dr. Edward Lavieri Jr. Dr. Edward Lavieri Jr.
Author Profile Icon Dr. Edward Lavieri Jr.
Dr. Edward Lavieri Jr.
Mandar Jog Mandar Jog
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Mandar Jog
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Table of Contents (20) Chapters Close

Preface 1. The Java 11 Landscape FREE CHAPTER 2. Discovering Java 11 3. Java 11 Fundamentals 4. Building Modular Applications with Java 11 5. Migrating Applications to Java 11 6. Experimenting with the Java Shell 7. Leveraging the Default G1 Garbage Collector 8. Microbenchmarking Applications with JMH 9. Making Use of the Process API 10. Fine-Grained Stack Tracing 11. New Tools and Tool Enhancements 12. Concurrency Enhancements 13. Security Enhancements 14. Command-Line Flags 15. Additional Enhancements to the Java Platform 16. Future Directions 17. Contributing to the Java Platform 18. Assessment 19. Other Books You May Enjoy

The heap profiling agent

The JVM TI hprof agent was recently removed from the Java platform. Here are the key terms associated with this change:

  • Tool Interface (TI): This is a native programming interface that allows tools to control the execution of applications that are being run inside the Java Virtual Machine. The interface also permits state inquiries. The full nomenclature for this tool is the Java Virtual Machine Tool Interface, or JVM TI.
  • Heap Profiling (HPROF): This is an internal JDK tool that's used for profiling a JVM's use of CPUs and the heap. The most common exposure developers have to hprof is the file that is generated when following a crash. The generated file contains a heap dump.

The Java 11 JDK does not contain the hprof agent. It was removed largely because there are superior alternatives available. Here is a table of their related functionality...

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