docs: public void removeAttribute(String arg0) {
          //321485
      	if (_attributes==null)
      		return;
          if (com.ibm.ejs.ras.TraceComponent.isAnyTracingEnabled()&&logger.isLoggable (Level.FINE)) {  //306998.15
              logger.logp(Level.FINE, CLASS_NAME,"removeAttribute", " name --> " + arg0);
          }
          Object oldValue=_attributes.remove(arg0);
      }