code: protected void entry(final String fqcn, final Object... params) {
          if (isEnabled(Level.TRACE, ENTRY_MARKER, (Object) null, null)) {
              if (params == null) {
                  logMessageSafely(fqcn, Level.TRACE, ENTRY_MARKER, entryMsg(null, (Supplier<?>[]) null), null);
              } else {
                  logMessageSafely(fqcn, Level.TRACE, ENTRY_MARKER, entryMsg(null, params), null);
              }
          }
      }
docs: Logs entry to a method with location information.
  
  @param fqcn The fully qualified class name of the <b>caller</b>.
  @param params The parameters to the method.