On 09/05/2011 14:24, Michael Anstis wrote: It's an easy fix. The imports moved to MVELDialectRuntimeData. This is so Drools can share an mvel ParserConfiguration at a package level, rather than creating one per MVELCompilationUnit. This should make compilation faster and lighter. MVELDialectRuntimeData data = ( MVELDialectRuntimeData ) context.getPkg().getDialectRuntimeRegistry().getDialectData( "mvel" ); ParserConfiguration pconf = data.getParserConfiguration(); pconf then gives access to those imports. I didn't add getters to MVELDialectRuntimeData, but if necesssary you can add them. Mark