building from source gives a warning about duplicate declaration of build-helper-maven-plugin in ruta-core.
Looking at the pom, there are two xml segments in the <build> for this, one specifying ...generated-sources/antlr3, and the other ...generated-sources/jflex I guess one of these needs to be deleted? or if you need both, they should be in one plugin spec, with two different <executions> having different <id>s. -Marshall
