Currently, the toString() methods of the ToscaPolicyXxxIdentifier classes generate strings of the form:

ToscaPolicyXxxIdentifier[name=xxx, version=yyy]

However, whenever an identifier is logged, the developer code almost always logs something like this:

logger.info("some message {} {}", ident.name, ident.version);

To facilitate logging, the toString() method should be modified to simply return:

ident.name + " " + ident.version

That will make it much easier to log identifiers.  For example:

logger.info("some message {}", ident);