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  2. JAVA400-L
  3. March 2009

Re: Anybody remember what the Java level is for OS/400 V4R5?

On Tue, 2009-03-10 at 18:20 -0700, Brian Leathem wrote:
Anyone got some old-time horror stories of wat it was like coding java
back then? These days we hear complaints of reified generics, and
closures.

Deified generics? Oops, read that wrong... :)

We were testing Java on the '400 in '98 and had production running on it
by '99. At that time it was JDBC from Swing apps, and an RMI server
that the Swing apps also used (still do). We started using web apps on
a Linux box that did JDBC to the '400 by 2000, and later added IFS r/w
and reading of data queues.

The main issue we encountered at that time was speed, which is why we
had an RMI server running on the '400 (to avoid slower JDBC calls). We
found RMI to be blindingly fast (still do), but now JDBC seems almost as
fast, and we don't hesitate to use it. But we run very little Java *on*
the AS/400.


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