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Java 11 and 12 ??? New Features

You're reading from   Java 11 and 12 ??? New Features Learn about Project Amber and the latest developments in the Java language and platform

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Product type Paperback
Published in Mar 2019
Publisher Packt
ISBN-13 9781789133271
Length 242 pages
Edition 1st Edition
Languages
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Author (1):
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Mala Gupta Mala Gupta
Author Profile Icon Mala Gupta
Mala Gupta
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Table of Contents (23) Chapters Close

Preface 1. Section 1: JDK 10 FREE CHAPTER
2. Type Inference 3. AppCDS 4. Garbage Collector Optimizations 5. Miscellaneous Improvements in JDK 10 6. Section 2: JDK 11
7. Local Variable Syntax for Lambda Parameters 8. Epsilon GC 9. The HTTP Client API 10. ZGC 11. Flight Recorder and Mission Control 12. Miscellaneous Improvements in JDK 11 13. Section 3: JDK 12
14. Switch Expressions 15. Miscellaneous Improvements in JDK 12 16. Section 4: Project Amber
17. Enhanced Enums in Project Amber 18. Data Classes and Their Usage 19. Raw String Literals 20. Lambda Leftovers 21. Pattern Matching 22. Other Books You May Enjoy

Epsilon GC

Imagine that a software organization replaces its programmers with ones who don't know how to code, in order to calculate how long it will take for them to exhaust their funds and shut down. In this scenario, no new revenue is generated, while staff pay continues. In a similar manner, when you use the Epsilon garbage collector (GC), introduced in Java 11, the software application replaces its GC with Epsilon, which does not release memory—to calculate how long will it take for the Java Virtual Machine (JVM) to exhaust all its memory and shut down.

Epsilon is a no-operation (no-op) GC—that is, it doesn't collect any garbage. It only handles the allocation of memory. When the available Java heap is exhausted, the JVM shuts down.

If this GC seems weird to you, think again. The Epsilon GC has been added as a benchmark to test applications for performance...

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