shadow-2.0.2.jar contains the module-info.class from ASM project. It reports:

• org.objectweb.asm.commons (6.0)

as its name to the Java module system. Compiled module desriptors from other artifacts should not be present.

jar --describe-module reports:

org.objectweb.asm.commons@6.0 jar:file:///[...]shadow-2.0.2.jar/!module-info.class open
exports shadow.org.objectweb.asm.commons
requires java.base mandated
requires org.objectweb.asm transitive
requires org.objectweb.asm.tree transitive