[rules-users] Drools library - updating Drools jar

[KDR]

Thanks to Edson and André for the very interesting discussion on maps in
Drools. :) I suspect my follow up question got a bit buried in that thread
and probably is a separate topic anyway, so I hope you don't mind my asking
this newbie question in a new thread.

All Drools projects created in Eclipse with the Drools plugin have a Drools
library associated with them, which shows up as a Drools Library entry on
the left in both project/package explorer, and in the project properties for
the project - in the Libraries tab for the project properties' Java Build
Path.

My question is, how do you get Eclipse to recognise an updated jar in the
Drools library please? Or perhaps it should be, how do you get Drools to
recognise an update to a jar which it uses?

Edson said in the other thread that I need to update my mvel jar to 2.0.12.
I can only find 2.0.13 but no doubt that's also got the maps bugfix.

However where I'm stuck is how get the Drools projects to use the updated
jar. I've copied the 2.0.13 jar to the Drools runtime folder on my computer
(both top level and subfolder). I've tried to add the 2.0.13 jar to the Java
build path for the project as an external jar. I've tried to create a fresh
Drools project in Eclipse. I've restarted Eclipse with -clean. The map issue
is still there, and the Drools library for the Drools projects still don't
even show 2.0.13 in the list of jars - just 2.0.10. I'm sure the crux of it
is that somewhere Drools has been told to use 2.0.10, and I don't know how
to tell it otherwise.

I'm sure it's a really easy thing to do if you know how, but I've tried
everything I can think of and am totally at a loss as to what to try next.
(Probably try to rename 2.0.13 to 2.0.10, delete or rename the old 2.0.10
and restart Eclipse?). 

Would some kind person be able to point me in the right direction please?
I'm trying to think of a workaround for my project that doesn't use maps,
but ideally maps would be the best way. I'm willing to offer a box of
chocolates or a bottle of wine or beer whatever your poison of choice, if
blatant bribes will help! :D

Many thanks. Any suggestions at all would be most appreciated.
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