I downloaded the Spark source code and made some changes, but now I need to compile the project and from what I’ve seen, it uses install4j, which is commercial software. Is there another way to generate an executable?
install4j generates the installers. Running mvn exec:java should generate the jar files you need to run spark. The Run from sources section of the README.md denotes this.
I managed to generate the JAR file, but I’m having trouble generating the .exe file to install on the workstations.
To generate the exe files, you will need to use Install4j.