@Override public boolean install() { if (!isInstalled()) { JavaSourceFacet javaSourceFacet = project.getFacet(JavaSourceFacet.class); JavaClass applicationClass = JavaParser.create(JavaClass.class) .setPackage(classPackage) .setName(className) .setSuperType("javax.ws.rs.core.Application") .addAnnotation("javax.ws.rs.ApplicationPath") .setStringValue(rootPath) .getOrigin(); applicationClass.addImport("javax.ws.rs.core.Application"); applicationClass.addImport("javax.ws.rs.ApplicationPath"); try { javaSourceFacet.saveJavaSource(applicationClass); } catch (FileNotFoundException e) { throw new RuntimeException(e); } } return true; }