Erro ao gerar entidades utilizando Jboss Seam(Seam Generate Entities) no Eclipse

Boa tarde pessoal,

Alguém já se deparou com o erro que segue logo abaixo ao tentar gerar entidades utilizando Jboss Seam(Seam Generate Entities) no modo Reverse enginneer from database do eclipse?

Can’t generate seam entities

org.hibernate.console.HibernateConsoleRuntimeException: Could not load JPA Configuration
Could not load JPA Configuration
org.hibernate.console.HibernateConsoleRuntimeException: Could not load JPA Configuration
Could not load JPA Configuration
org.hibernate.console.HibernateConsoleRuntimeException: Could not create JPA based Configuration
Could not create JPA based Configuration
java.lang.reflect.InvocationTargetException:
java.lang.reflect.InvocationTargetException
javax.persistence.PersistenceException: java.lang.IllegalArgumentException: Unable to visit JAR file:/C:/Documents and Settings/a5113107/workspaceEuropa/Processum/build/classes. Cause: Illegal character in path at index 18: file:/C:/Documents and Settings/a5113107/workspaceEuropa/Processum/build/classes
java.lang.IllegalArgumentException: Unable to visit JAR file:/C:/Documents and Settings/a5113107/workspaceEuropa/Processum/build/classes. Cause: Illegal character in path at index 18: file:/C:/Documents and Settings/a5113107/workspaceEuropa/Processum/build/classes
java.lang.IllegalArgumentException: Unable to visit JAR file:/C:/Documents and Settings/a5113107/workspaceEuropa/Processum/build/classes. Cause: Illegal character in path at index 18: file:/C:/Documents and Settings/a5113107/workspaceEuropa/Processum/build/classes
Unable to visit JAR file:/C:/Documents and Settings/a5113107/workspaceEuropa/Processum/build/classes. Cause: Illegal character in path at index 18: file:/C:/Documents and Settings/a5113107/workspaceEuropa/Processum/build/classes

Resposta desse problema:

http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4144320#4144320