Facet are installed using a mix of interface and class impl names ----------------------------------------------------------------- Key: FORGE-2181 URL: https://issues.jboss.org/browse/FORGE-2181 Project: Forge Issue Type: Task Affects Versions: 2.12.3.Final Reporter: Claus Ibsen Priority: Optional Attachments: forge.log I want to use the MavenPluginFacet from my own command, and have defined {code} @FacetConstraint({MavenPluginFacet.class}) public class CamelSetupCommand extends AbstractCamelProjectCommand { ... MavenPluginFacet pluginFacet = project.getFacet(MavenPluginFacet.class); MavenPluginBuilder plugin = MavenPluginBuilder.create() .setCoordinate(createCamelCoordinate("camel-maven-plugin", version.getValue())); pluginFacet.addPlugin(plugin); {code} But my command is not registered and I could find this from the forge log {code} 14:22:21,847 INFO [org.jboss.weld.Bootstrap] (io.fabric8.forge:camel,2.2-SNAPSHOT) WELD-000119: Not generating any bean definitions from io.fabric8.forge.camel.commands.project.CamelSetupCommand because of underlying class loading error: Type [unknown] not found. If this is unexpected, enable DEBUG logging to see the full error. {code} I suspect its because of the annotation constraint {code} @FacetConstraint({MavenPluginFacet.class}) {code} which can't find the type, and thus fails. I noticed this command can list the facets, and it lists {code} [mydemo]$ project-list-facets ConfigurationFacetImpl [org.jboss.forge.addon.configuration.ConfigurationFacetImpl@38bc685a] MavenJavaCompilerFacet [org.jboss.forge.addon.maven.projects.facets.MavenJavaCompilerFacet@38bc685a] MavenJavaSourceFacet [org.jboss.forge.addon.maven.projects.facets.MavenJavaSourceFacet@38bc685a] MavenResourcesFacet [org.jboss.forge.addon.maven.projects.facets.MavenResourcesFacet@38bc685a] MavenWebResourcesFacet [org.jboss.forge.addon.maven.projects.facets.MavenWebResourcesFacet@38bc685a] MavenDependencyFacet [org.jboss.forge.addon.maven.projects.facets.MavenDependencyFacet@38bc685a] MavenPackagingFacet [org.jboss.forge.addon.maven.projects.facets.MavenPackagingFacet@38bc685a] MavenMetadataFacet [org.jboss.forge.addon.maven.projects.facets.MavenMetadataFacet@38bc685a] MavenPluginFacetImpl [org.jboss.forge.addon.maven.projects.MavenPluginFacetImpl@38bc685a] MavenFacetImpl [org.jboss.forge.addon.maven.projects.MavenFacetImpl@38bc685a] {code} Notice that some of them are using the interface type name, and others are using the class impl class type. I wonder if it should not always use the interface so as a I client I only need to -api dependency.