On 1/21/2014 10:39 AM, John McKown wrote:
This is a curiosity question. I am wondering how resistant shops are to even having the Java JDK installed on their system. Not in being resistant to writing application code in Java, but just to having it available. In particular, are there many shops who would reject a useful product because it was written in Java versus in C, C++, or some other language? The only reason that I can think of that they would reject Java is due to the "high CPU" needed versus C or whatever. I would _assume_ that a shop with a zAAP (or zIIP for zAAP on zIIP) would not be resistant, and maybe even glad, to have Java because it could offload work from the general CPs onto the "full speed" zIIP or zAAP processor.
Most mainframe modernization efforts are rooted in Java. z/OSMF is a prime example from IBM. Chorus Software Manager is a good example from CA. I can speak from personal experience that our emerging Java-based mainframe offerings have been well received by our customer base. http://phoenixsoftware.com/ejes/ejes_future.htm
From a strategic standpoint, IBM has given z/OS Java highly preferential treatment in both System z hardware/software design and customer terms and conditions. This trend is expected to continue, making z/OS Java a solid language/platform choice with good investment protection for the foreseeable future.
I still remember when at times it seemed that DB2 was the ONLY driver of new innovations on the platform. Of course, DB2 is still an important contributor. But, in my view, it has taken somewhat of a back seat to more numerous performance enhancements aimed squarely at Websphere/Java.
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