code: protected void callInvalidateFromInternalInvalidate() {
          if (com.ibm.ejs.ras.TraceComponent.isAnyTracingEnabled() && LoggingUtil.SESSION_LOGGER_CORE.isLoggable(Level.FINE)) {
              LoggingUtil.SESSION_LOGGER_CORE.logp(Level.FINE, methodClassName, "callInvalidateFromInternalInvalidate", "calling invalidate");
          }
          this.invalidate();
      }
docs: PM11279: overridden in BackedSesion