return DnDConstants.ACTION_NONE; }
    public int isDroppable(DataFlavor[] possibleFlavors, DefaultMutableTreeNode target) {        Object userObject = target.getUserObject();        // Can only drop on folders (or the root)        if (userObject == null || userObject instanceof String) {            for (int i = 0; i < possibleFlavors.length; i++) {                DataFlavor flavor = possibleFlavors[i];                if (flavor.equals(DataFlavor.stringFlavor))                    return DnDConstants.ACTION_MOVE;                if (flavor instanceof CSMARTDataFlavor) {                    CSMARTDataFlavor cflavor = (CSMARTDataFlavor) flavor;                    if (getClass().getName().equals(cflavor.getSourceClassName())) {                        if (cflavor.equals(societyFlavor)                            || cflavor.equals(recipeFlavor)                            || cflavor.equals(experimentFlavor)			    || cflavor.equals(componentFlavor))                            return DnDConstants.ACTION_MOVE;                    }                }            }        }        return DnDConstants.ACTION_NONE;    }