Comment 28 for bug 255149

Thanks a lot for fixing this, Andrew! I'm looking forward to being able to run and compile our code with OpenJDK without resorting to obscure command line switches.

For the record, I actually have started to work on a patch that includes the ScriptEngine with Rhino:

https://bugzilla.mozilla.org/show_bug.cgi?id=379385#c5

The only problem (and the reason it hasn't been committed yet) is some strange non-deterministic behaviour in which rhino engine is chosen. I haven't gotten to the bottom of this, my guess is that the script engine selection algorithm just isn't prepared to deal with multiple engines with the same name.

In case somebody wants to tackle the custom classloader approach, another solution would be to place the script engine implementation in a dedicated jar file that is not on any system class loader, e.g. jsr223-rhino.jar, and use the custom class loader to load that and the rhino jar. You definitely want the script engine implementation to be loaded with the custom class loader in order to use the javax.script interfaces to drive it. If only Rhino itself is loaded via custom classloader, you'd have to implement the script engine via reflection, which wouldn't be much fun.