PropertySet needs to be used in OSWORKFLOW2.8.0. In ProertySet1.3, com.opensymphony.module.propertymphony.Module.PropertySet.hibernate This package is included in JAR, in the JAR in PropertySet1.4, no this package, in OSWORKFLOW / LIB This file is found in the Propertyset-Hibernate-1.4.jar in / Optional, which is unzipped, where there is com.opensymphony.module.propertyMphony.Module.PropertySet.Hibernate this package. Note that the package and PropertySet1.4 are imported into the classpath.