code: public static void copyInternalResources(AbstractWisdomMojo mojo, MavenResourcesFiltering filtering) throws
              IOException {
          File in = new File(mojo.basedir, Constants.MAIN_RESOURCES_DIR);
          if (!in.exists()) {
              return;
          }
          File out = new File(mojo.buildDirectory, "classes");
          filterAndCopy(mojo, filtering, in, out);
      }
docs: Copies the internal resources from "src/main/resources" to "target/classes". Copied resources are filtered.
  Notice that these resources are embedded in the application's bundle.
  
  @param mojo      the mojo
  @param filtering the component required to filter resources
  @throws IOException if a file cannot be copied