Hi, I'm having trouble to undersand how the argument

classpath_spec

of the method

register_jvm_tool

of the class

JvmToolMixin

works. in pants codebas I often see

//:foo

even if there is no target foo in the

BUILD

file in the same directory of the declaration. Btw, how is the

//

intrepreted ?

That's right. The spec is the BUILD file address pants will look at to see if there is an override of the default jvm tool classpath. If the spec points to a non-existant BUILD file address, pants uses the default (typical). If the spec points to a live BUILD file address it is expected that address points to a jar_library. The key point being the pants jvm tool support only currently works for pre-built jvm tools.

thanks for the precisions !