myJVMinCpp

This is a simple JVM (Java Virtual Machine) implemented in C++ that supports basic class file parsing and bytecode interpretation and execution.

Build(CMake)

mkdir build
cd build
cmake ..
make

Usage

Put the class file (e.g Test.class) into the location where your build, run

./myJVMinCpp Test.class

If the class file is not specified, load Test.class defaultly.

Features

• Supports basic parsing of Java class files (constant pool, methods, attributes, etc.)
• Supports most interpretation and execution of some mainstream bytecode instructions (iconst, iload, istore, iadd, return, etc.)
• Supports class searching and loading
• Basic runtime structures (stack frame, local variable table, operand stack, simple object model)

Plan

• Implements all bytecode instructions
• Implements more native methods (JNI)
• Supports exception handling
• Supports arrays
• Supports multithreading and synchronization mechanisms
• Supports GC
• Improves the object model and heap management

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If you have any suggestions or questions, please submit an issue or PR!