4.x: clean up warning messages from archetype generated projects (helidon-io#9451)

* Change log level of missing static file message to DEBUG
* Silence warning from Jersey wadl support using logging.properties

Author: barchetta

archetypes/archetypes/src/main/archetype/mp/common/files/src/main/resources/logging.properties.mustache

@@ -20,6 +20,9 @@ java.util.logging.SimpleFormatter.format=%1$tY.%1$tm.%1$td %1$tH:%1$tM:%1$tS %4$
 # Quiet Weld
 org.jboss.level=WARNING
 
+# Quiet Jersey wadl support
+org.glassfish.jersey.server.wadl.level=SEVERE
+
 # Component specific log levels
 #io.helidon.config.level=INFO
 #io.helidon.security.level=INFO

openapi/openapi/src/main/java/io/helidon/openapi/OpenApiFeature.java

@@ -81,7 +81,7 @@ public final class OpenApiFeature implements Weighted, ServerFeature, RuntimeTyp
             }
             if (defaultContent == null) {
                 defaultContent = "";
-                LOGGER.log(Level.WARNING, "Static OpenAPI file not found, checked: {0}", DEFAULT_FILE_PATHS);
+                LOGGER.log(Level.DEBUG, "Static OpenAPI file not found, checked: {0}", DEFAULT_FILE_PATHS);
             }
         }
         content = defaultContent;