Structure of WPILibJ

WPILibJ is the java WPI Library for FRC. It is located within the allwpilib project at allwpilib\wpilibj. Like most other things in allwpilib, it is built using gradle. In this case, the result of this is a JAR file, called wpilibj.jar. There is also a Simulation version of wpilibj, which creates wpilibjSimulation.jar. Within the wpilibj folder, you’ll find (amoung other things) the following:

• wpilibJava
• wpilibJavaDevices
• wpilibJavaSim
• wpilibJavaFinal
• wpilibJavaJNI
• wpilibJavaIntegrationTests