You're reading from Supercharge Your Applications with GraalVM Hands-on examples to optimize and extend your code using GraalVM's high performance and polyglot capabilities

Product type Paperback

Published in Aug 2021

Publisher Packt

ISBN-13 9781800564909

Length 360 pages

Edition 1st Edition

Languages

Java

Tools

LLVM

Concepts

High Performance Programming

Author (1):

A B Vijay Kumar

Preface

1. Section 1: The Evolution of JVM

2. Chapter 1: Evolution of Java Virtual Machine FREE CHAPTER

3. Chapter 2: JIT, HotSpot, and GraalJIT

4. Section 2: Getting Up and Running with GraalVM – Architecture and Implementation

5. Chapter 3: GraalVM Architecture

6. Chapter 4: Graal Just-In-Time Compiler

7. Chapter 5: Graal Ahead-of-Time Compiler and Native Image

8. Section 3: Polyglot with Graal

9. Chapter 6: Truffle for Multi-language (Polyglot) support

10. Chapter 7: GraalVM Polyglot – JavaScript and Node.js

11. Chapter 8: GraalVM Polyglot – Java on Truffle, Python, and R

12. Chapter 9: GraalVM Polyglot – LLVM, Ruby, and WASM

13. Section 4: Microservices with Graal

14. Chapter 10: Microservices Architecture with GraalVM

15. Assessments

16. Other Books You May Enjoy

Chapter 8 – GraalVM Polyglot – Java on Truffle, Python, and R

Java on Truffle is the new way to run Java programs on top of the Truffle framework. Java on Truffle provides an interpreter that is completely built on Java and runs in the same memory space as other Truffle languages. This was introduced in GraalVM version 21. For more details refer to the Understanding Espresso (Java on Truffle) section.
Java on Truffle provides an isolationist layer, which helps to run untrusted code and code written in an older version of JDK, and provides hot-swap and other advanced features. To learn more about the advantages of using Java on Truffle, refer to the Why do we need Java on Java? section for more details.
The Polyglot.cast() method is used in Java on Truffle to typecast the data that is exported or returned by dynamic languages. Refer to the Exploring Espresso interoperability with other Truffle languages section for more details and code examples.
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