Death of Sun JVM?


As a Java developers, we don't care about Mergers & Acquisitions (M&A) happening in market place, but today's IBM's acquisition talk of Sun Microsystems was really important. There are lot of questions about future of Java? it's open source status?? JCP process??? etc...etc...But as per my opinion, IBM did more than Sun did for Java, in fact IBM's developer's works has more document than Sun. IBM will not kill Java technology but questions regarding open source and JCP are unknowns for now. My opinion is, JCP should be continued and it was very transparent to all.

The main question is, what will happen to SUN JVM? Since IBM has it's own JVM, what is the point of continuing with SUN JVM. The issue with JVM is, the working application will not work if we change JVMs. For example, the working application from JBoss will not work in WebSphere, because the former is Sun JVM implementation and later is IBM JVM implementation. The main issues are the way different JVM handles classpath loading, constructor and object creation, garbage collection. Here is one closed bug from latest JBoss release's issue in IBM JDK. This kind of issues are very common when we change JVMs to different vendors. Most of the issues happen from outside of application boundary hence debugging and fixing is cumbersome. Here is excellent blog from Excelsior about different JVM's bahaviours .

Having said that, lets hope IBM will not change any thing for now, they can slowly mend it to their way of developing Java and it is future release. One way it is good that Java going to be with a strong company. Since last recession Sun didn't turn around their business positive so far, they are lossing money quater by quater and nothing seems to work fine for Sun. IBM is really great but one catch is they are very much into all level of IT business and it will be really interesting how they are going to handle a language which is used by millions of millions developers, mainly for open source projects. It is really a fundamental shift for IT market.

Comments

Anonymous said…
Good post. In my view IBM has been a much stronger proponent of open source and embraced open source much ahead of others. As you say Java will do better under IBM.
11:23 PM
Subba Muthurangan said…
This comment has been removed by the author.
11:34 PM
Subba Muthurangan said…
Thanks Sukumar. Yes...everybody feels the same...
11:35 PM
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