Java Call Graph Plotter

This project allows generating and visualizing static call graphs for Spring/Java applications.

Installation

After cloning the repository, create a Python 3.8 virtual environment in the project folder:

python -m venv .venv

Activate the virtual environment and install the dependencies:

source .venv/bin/activate
pip install -r requirements.txt

Usage

Create a call graph from your Jar:

java -jar javacg/javacg-0.1-SNAPSHOT-static.jar your-jar.jar > call-graph.txt

If you just want to test how it works, you can use the example jar in the folder target-jar:

java -jar javacg/javacg-0.1-SNAPSHOT-static.jar target-jar/demo-customer-0.0.1-SNAPSHOT.jar > call-graph.txt

Now create the graph by running:

python callgraphplotter.py call-graph.txt ApiDBSelector

A new graph will be created in the folder output. It's a html file so you can open it in the browser. If you used the example jar, this is what you should see in the browser:

More info

See the full article on Medium.