Groovy runtime error when using JDK 1.6
org.codehaus.groovy.runtime.m12n.MetaInfExtensionModule newModule
WARNUNG: Module [groovy-all] - Unable to load extension class [org.codehaus.groovy.runtime.NioGroovyMethods]
org.codehaus.groovy.runtime.m12n.MetaInfExtensionModule newModule
WARNUNG: Module [groovy-all] - Unable to load extension class [org.codehaus.groovy.runtime.NioGroovyMethods]