See other postings about this, related to SmartGWT LGPL for example. Nobody
here is a lawyer, so you can only take our info for what little it's worth.
Note that SmartGWT and some others have "extra clauses" added to the LGPL
that will allow you to do so because they allow the fact that with GWT,
I've seen some software packages and frameworks for GWT
that is released under LGPL. Timefire's Chronoscope is
one of those.
This got me thing about how LGPL and other restrictive
licenses "work" in relation to GWT.
Normally LGPL allows you to link a library or framework