code: private WSJdbcConnection[] resizeHandleList() {
          System.arraycopy(handlesInUse,
                           0,
                           handlesInUse = new WSJdbcConnection[
                                           maxHandlesInUse > numHandlesInUse ?
                                                           maxHandlesInUse :
                                                           (maxHandlesInUse = numHandlesInUse * 2)],
                           0,
                           numHandlesInUse);
  
          if (TraceComponent.isAnyTracingEnabled() && tc.isDebugEnabled())
              Tr.debug(this, tc, 
                       "Handle limit increased to: " + maxHandlesInUse);
  
          return handlesInUse;
      }
docs: Increase the size of the array that keeps track of handles associated with this
  ManagedConnection.
  
  @return the resized handle list.