Installing plugin hibernate-tools cause log4j failure due to class loader conflict

On a fresh forge install, installed hibernate-tools plugin. Stopped forge. Started forge and saw

[starver@makara isd-pkgferry 16:14:16]$ forge
log4j:ERROR A "org.apache.log4j.xml.DOMConfigurator" object is not assignable to a "org.apache.log4j.spi.Configurator" variable.
log4j:ERROR The class "org.apache.log4j.spi.Configurator" was loaded by
log4j:ERROR [ModuleClassLoader for Module "org.jboss.forge:main" from local module loader @320cf66b (roots: /Users/starver/dev/forge-1.0.0.Beta3/modules,/Users/starver/.forge/plugins)] whereas object of type
log4j:ERROR "org.apache.log4j.xml.DOMConfigurator" was loaded by [ModuleClassLoader for Module "org.jboss.hibernate.forge.hibernate-tools-plugin.dependencies:1.0.0-SNAPSHOT-cd6ef896-c37d-40a3-926f-b1d164a0a129" from local module loader @320cf66b (roots: /Users/starver/dev/forge-1.0.0.Beta3/modules,/Users/starver/.forge/plugins)].
log4j:ERROR Could not instantiate configurator [org.apache.log4j.xml.DOMConfigurator].
log4j:WARN No appenders could be found for logger (org.jboss.weld.Version).
log4j:WARN Please initialize the log4j system properly.
log4j:WARN See http://logging.apache.org/log4j/1.2/faq.html#noconfig for more info.