+1.
Rony G. Flatscher wrote:
Hi ant,
ant elder wrote:
There are a whole lot of JSR-223 script engines available at
https://scripting.dev.java.net/ (scroll down to the bottom and you
see the
25 or so languages supported). These use a BSD license which is Apache
friendly (see
http://people.apache.org/~cliffs/3party.html<http://people.apache.org/%7Ecliffs/3party.html>),
so AFAIK is ok to distribute these in an Apache project all we'd need
to do
is include the Sun copyright and BSD license in the NOTICE file.
One problem with them is the engines are compiled with JDK6 so don't work
with JDK 1.4 or 1.5, and I think we need to keep BSF3 working on JDK
1.4 if
we can. One way around this is Retroweaver (
http://retroweaver.sourceforge.net/) which uses byte code manipulate to
convert compiled classes to be JDK 1.4 compatible. To see if this is
feasible I've added a module to the build to download that scripting
engine
zip, unzip it, convert an engine to JDK 1.4 with Retroweaver, and install
the new jar in the local maven repo. See
https://svn.apache.org/repos/asf/jakarta/bsf/trunk/bsf3/install-engines/.
It seems to work, so what do people think about using these engines in
BSF3?
It would certainly expedite things but it feels a bit odd doing this,
what
do you think?
If it is legally and technically possible, I would go that route for
sure. One thing we could do is approaching the maintainers of those
engines and request from them a re-compile with JDK 1.4 and test them
with BSF3. It should be very attractive for them as that definitely
would open up a lot of opportunities with Java apps that are deployed
right now with eralrier version of Java than with Java 1.6.
Regards,
---rony
P.S.: JSR-223 originally was *not* geared towards 1.6. Only after the
specs where more or less finalized did Sun come up with the idea to
introduce and exploit as many features of JDK 1.6 as possible. In the
discussion I pointed out that there would be an opportunity to use BSF
for earlier version of Java (talking about the 2.x codebase then, but
hoping that the 3.x codebase was really coming into existence, being a
full replacement of JSR-223 in Java 1.6
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--
Sanjiva Weerawarana, Ph.D.
Founder & Director; Lanka Software Foundation; http://www.opensource.lk/
Founder, Chairman & CEO; WSO2, Inc.; http://www.wso2.com/
Director; Open Source Initiative; http://www.opensource.org/
Member; Apache Software Foundation; http://www.apache.org/
Visiting Lecturer; University of Moratuwa; http://www.cse.mrt.ac.lk/
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