code: public static final void entry(TraceComponent tc, String methodName, Object obj) {
          if (obj != null && obj instanceof Object[]) {
              com.ibm.websphere.ras.Tr.entry(tc, methodName, (Object[]) obj);
          } else {
              com.ibm.websphere.ras.Tr.entry(tc, methodName, obj);
          }
      }
docs: Print the provided message if the input trace component allows entry
  level messages.
  
  @param tc
  @param methodName
  @param obj