seam generate-entities throws java.lang.NoClassDefFoundError: org/slf4j/LoggerFactory

Customer is seeing the following after attempting to generate-entities with Seam, I have verified this exception happens only in Windows, not in Linux.

C:WINNTsystem32>seam generate-entities
SEAM_HOME: C:Developmentjboss-eap-5.0seam
Using seam-gen sources from: C:Developmentjboss-eap-5.0seamseam-gen
Buildfile: C:Developmentjboss-eap-5.0seamseam-genbuild.xml

init:

init-properties:
[echo] c:/Development/jboss-eap-5.0/jboss-as

validate-workspace:

validate-project:

init-generate:

generate-model:
[echo] Reverse engineering database using JDBC driver C:/Development/mysql-connector-java-5.1.7/mysql-connector-java-5.1.7-bin.jar
[echo] project=C:/Development/projects/assetts
[echo] model=dne.nib.assettags.model
[hibernate] Executing Hibernate Tool with a JDBC Configuration (for reverse engineering)
[hibernate] 1. task: hbm2java (Generates a set of .java files)

BUILD FAILED
C:Developmentjboss-eap-5.0seamseam-genbuild.xml:1375: java.lang.NoClassDefFoundError: org/slf4j/LoggerFactory

Total time: 2 seconds

C:WINNTsystem32>