How to Read Project Properties from Groovy script?

You need to call a different method for each one:

project.getName()
project.getDescription()
project.getPath()
project.getResourceRoot()
project.isCacheDefinitions()
project.getShadowPassword()
project.getDefaultScriptLanguage()
project.getHermesConfig()

From here: https://support.smartbear.com/readyapi/apidocs/soapui/com/eviware/soapui/impl/wsdl/WsdlProject.html