docs: protected void markLocalTransactionWrapperInUse() throws ResourceException {
  
          final boolean isTracingEnabled = TraceComponent.isAnyTracingEnabled();
  
          if (isTracingEnabled && tc.isEntryEnabled()) {
              Tr.entry(this, tc, "markLocalTransactionWrapperInUse");
          }
  
          if (state == STATE_ACTIVE_INUSE) {
              state = STATE_TRAN_WRAPPER_INUSE;
              tranWrapperInUse = LOCALTXWRAPPER;
              /*
               * If we are not in the shared pool we need to move the mcWrapper from
               * the unshared pool to the shared pool. Under normal conditions, this should not
               * be needed. The non-normal condition is when a user starts a user thread and
               * gets a connection then starts a transaction.
               */
              if (!(isInSharedPool() || this.getPoolState() == MCWrapper.ConnectionState_sharedTLSPool)) {
                  if (cm.shareable()) {
                      pm.moveMCWrapperFromUnSharedToShared(this, uowCoord);
                  }
              }
          } else { // state not STATE_ACTIVE_INUSE
              if (state != STATE_TRAN_WRAPPER_INUSE) {
                  IllegalStateException e = new IllegalStateException("markLocalTransactionWrapperInUse: illegal state exception. State = " + getStateString() + " MCW = "
                                                                      + mcWrapperObject_hexString);
                  Tr.error(tc, "ILLEGAL_STATE_EXCEPTION_J2CA0079", "markLocalTransactionWrapperInUse", e);
                  throw e;
              } else { // state is STATE_TRAN_WRAPPER_INUSE
                  if (tranWrapperInUse == NONE) {
                      tranWrapperInUse = LOCALTXWRAPPER;
                  } else { //tranWrapperInUse is NOT NONE
                      if (tranWrapperInUse != LOCALTXWRAPPER) {
                          // Need RAS and Trace here.
                          IllegalStateException e = new IllegalStateException("markLocalTransactionWrapperInUse: illegal transaction state exception. State = "
                                                                              + getTranWrapperString());
                          Object[] parms = new Object[] { "markLocalTransactionWrapperInUse", e };
                          Tr.error(tc, "ILLEGAL_STATE_EXCEPTION_J2CA0079", parms);
                          throw e;
                      }
                  }
              }
          }
  
          if (isTracingEnabled && tc.isEntryEnabled()) {
              Tr.exit(this, tc, "markLocalTransactionWrapperInUse");
          }
  
          return;
  
      }