Implementations of JVM Specification

This section provides a list of major implementations of the JVM Specification.

Here is a list of major implementations of JVM specification:

     Name       Provider      Last Rel.          Cost
     ----       --------      ---------          ----
    Avian      ReadyTalk   Discontinued          Free
    CEE-J        Skelmir    2020 | 18.2    Commercial
      GCJ            GNU   Discontinued          Free
  HotSpot         Oracle    2021 | 17            Free
Jikes RVM            IBM    2020 |3.1.4          Free
  JRockit         Oracle   Discontinued          Free
    Kaffe   Transvirtual   Discontinued          Free
   OpenJ9            IBM    2020 |0.20.0         Free
     Zing           Azul    2020 |20.06    Commercial
     Zulu           Azul    2020 |14.28          Free

Table of Contents

 About This Book

JVM (Java Virtual Machine) Specification

 What Is JVM (Java Virtual Machine)

 What Is JVM Specification

 JVM Architectures and Components

Implementations of JVM Specification

 Java HotSpot VM - JVM by Oracle/Sun

 java.lang.Runtime Class - The JVM Instance

 java.lang.System Class - The Operating System

 ClassLoader Class - Class Loaders

 Class Class - Class Reflections

 JVM Runtime Data Areas

 JVM Stack, Frame and Stack Overflow

 Thread Testing Program and Result

 CPU Impact of Multi-Thread Applications

 I/O Impact of Multi-Thread Applications

 CDS (Class Data Sharing)

 Micro Benchmark Runner and JVM Options

 Micro Benchmark Tests on "int" Operations

 Micro Benchmark Tests on "long" Operations

 Micro Benchmark Tests in JIT Compilation Mode

 Micro Benchmark Tests on "float" and "double" Operations

 OpenJ9 by Eclipse Foundation

 JRockit JVM 28.2.7 by Oracle Corporation

 Archived Tutorials

 References

 Full Version in PDF/EPUB