When creating a shared library, what should the common logic application's pom.xml Maven configuration classifier be?

• A. mule-app
• B. mule-plugin
• C. mule-domain
• D. mule-extension

Answer: (B)

In MuleSoft, shared libraries are delivered as Mule plugins. Using the classifier mule-plugin tells Maven to build the artifact as a Mule plugin jar meant to be loaded by the runtime as a shared library that multiple apps can reuse. This is different from a Mule application (which would be mule-app), a domain (mule-domain) that groups multiple apps, or a Mule extension (mule-extension) which is for runtime extensions rather than a reusable library. The mule-plugin classifier ensures the artifact is recognized by the Mule runtime as a shared library rather than an executable app or a different type of module.