Help with CFX tags

Hey Guys.

I'm fairly new at using CFX Tags in cold fusion.
I'm writing a couple of them in java, They compile fine and work ok too.

One thing i noticed was that it when I replace the .class file, the tag itself does not update !

For instance, I have a made a java file which does something like this

response.write("Hello Martin")

I've complied that and put it in the classes directory under the file name martin.class and called the tag cfx_martin.

If i load a webpage with <cfx_martin> it displays

"Hello Martin"

Now, if i replace that class file with something that does

response.write("Hello John")

and replaced with file martin.class and the tag is cfx_martin, it will still display

"Hello Martin"

instead of "Hello John"

Can someone please tell me why ?

Thanks, Marty