for( final String key : properties_map.keySet() ) {
final Property prop = properties_map.get( key );
category.add( new DefaultMutableTreeNode( prop.getRef() + "=" + prop.getValue() + " " + prop.getUnit()
- + " [" + prop.getAppliesTo().toString() + "]" ) );
+ + " [" + prop.getAppliesTo().toString() + "]" ) );
}
}