The trace/debug log should help you: public enum Category { BOOTSTRAP("Bootstrap"), VERSION("Version"), UTIL("Utilities"), BEAN("Bean"), SERVLET("Servlet"), REFLECTION("Reflection"), JSF("JSF"), EVENT("Event"), CONVERSATION("Conversation"), CONTEXT("Context"), EL("El"); private static final String LOG_PREFIX = "org.jboss.weld."; private final String name; Category(String name) { this.name = createName(name); } String getName() { return name; } private static String createName(String name) { return new StringBuilder().append(LOG_PREFIX).append(name).toString(); } On May 4, 2011, at 4:49 AM, Marek Śmigielski wrote: