Getting "IllegalArgumentException: No script engine could be created for: spel" error in FSW 6

Solution Unverified - Updated -


  • I observe discrepancies between Maven dependencies and Fuse Service Works.
  • With JBDS and the official SwitchYard dependencies, I develop a component with the following code in an XML Camel route:

  • The route works fine with SwitchYardTestKit.

  • Running in Fuse Service Works 6.0.0, the route fails:

    java.lang.IllegalArgumentException: No script engine could be created for: spel


  • Red Hat JBoss Fuse Service Works (FSW)
    • 6.0.0

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