This might be a little off topic, depending on if anyone has done some CFX
development before.  In fact, it might not be related to ColdFusion at all,
but I'm not sure.  We use 7 custom CFX tags in our application, and they've
been humming along happily since we upgraded to CF7.  However, I wanted to
make an improvement to some of them recently, and after I build the tags
again, I get the following error when they try to execute.

Error processing CFX custom tag "CFX_com.printcafe.cfx.cfx_WDDXTOJS".
A ClassCastingException occured. The CFX custom tag
"CFX_com.printcafe.cfx.cfx_WDDXTOJS" needs to implement
"com.allaire.cfx.CustomTag" interface. Please be sure to add this to your
custom class.


Now, being a C# guy, I'm not 100% comfortable with Java yet, but my intuition
tells me that it's the different Java runtime we're using now (we upgraded
all development machines to 1.4.2_07).  Also, there's an innocuous line of
documentation from Livedocs - "You can use a wide range of Java development
environments, including the Java Development Kit (JDK) v 1.3.1 from Sun" -
that makes me think I'm on the right track.  Perhaps CFX.JAR isn't 1.4
compatible?

Anyone have experience with this?

Thanks in advance,
Steve

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