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Mastering Java 11

Mastering Java 11

By : Dr. Edward Lavieri Jr., Jog
1 (2)
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Mastering Java 11

Mastering Java 11

1 (2)
By: Dr. Edward Lavieri Jr., Jog

Overview of this book

Java 11 is a long-term release and its new features add to the richness of the language. It emphasizes variable-type inference, performance improvements, along with simplified multithreading. The Java platform has a special emphasis on modularity, making this the programming platform of choice for millions of developers. The modern Java platform can be used to build robust software applications, including enterprise-level and mobile applications. Fully updated for Java 11, this book stands to help any Java developer enjoy the richness of the Java programming language. Mastering Java 11 is your one-stop guide to fully understanding recent Java platform updates. It contains detailed explanations of the recent features introduced in Java 9, Java 10, and Java 11 along with obtaining practical guidance on how to apply the new features. As you make your way through the chapters, you'll discover further information on the developments of the Java platform and learn about the changes introduced by the variable handles and Project Coin, along with several enhancements in relation to import statements processing. In the concluding chapters, you'll learn to improve your development productivity, making your applications more efficient. You'll also be able to get to grips with the command-line flags with respect to various utilities and the command-line utility changes featured in the current Java platform. By the end of the book, you'll have obtained an advanced level understanding of the Java platform and its recent changes.
Table of Contents (20 chapters)
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Segmented code cache

Java's segmented code cache upgrade was completed and results in faster, more efficient execution time. At the core of this change was the segmentation of the code cache into three distinct segments—non-method, profiled, and non-profiled code.

A code cache is the area of memory where the JVM stores generated native code.

Each of the aforementioned code cache segments will hold a specific type of compiled code. As you can see in the following diagram, the code heap areas are segmented by type of compiled code:

Memory allocation

The code heap containing non-method code is used for JVM internal code and consists of a 3 MB fixed memory block. The rest of the code cache memory is equally allocated...

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