/**
* resolve properties inside a properties hashtable
* @param props properties object to resolve
*/
private void resolveAllProperties(Map props) throws BuildException {
PropertyHelper propertyHelper
= (PropertyHelper) PropertyHelper.getPropertyHelper(getProject());
new ResolvePropertyMap(
getProject(),
propertyHelper,
propertyHelper.getExpanders())
.resolveAllProperties(props, getPrefix(), getPrefixValues());
}