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To: Kashish King who wrote (9609)3/29/1998 7:23:00 PM
From: i-node  Read Replies (1) | Respond to of 10836
 
They are at the very heart of the software crisis

Software crisis? What software crisis? The biggest software crisis I know about is that no one can figure out what to do with all the money they're making...



To: Kashish King who wrote (9609)3/30/1998 12:24:00 AM
From: Bipin Prasad  Read Replies (1) | Respond to of 10836
 
To All:

I attended the pre-conference class on "Using Swing Classes" on
Monday March 23. This was a full day class. Then I attended 4 days
(Tuesday - Friday) of Java One.

To reduce the chance of boring non-Java folks, I will try not to get
too wrapped up in technical details.

Java is moving fast and furious (sometimes it seems that it is moving
in many directions at the same time). Last year's conference drew
6,000+ attendees. This year the number was closer to 15,000. This
number makes it the biggest conference of its kind in the US.

Java was demo-ed on multitude of devices and operating systems - from
rings (available from Dallas Semiconductor for $45 at the show), to
smart cards, on oscilloscopes (from Tektronix ?) to mainframes (and
everything in between). That was one big message of Java - "Ubiquity".
In the Java Pavillion about 100+ vendors were showcasing their
products.

The second big message of the Java One conference was "Stability".
This means changes wont be as fast and furious and will be more
organized.

The last, and the most important message was "Performance". In an
amazing demo that received several ovations, JavaSoft ran an example
of the new "Hot Spot" Java Adaptive compiler technology. This
compiler optimizes, inlines (and then optimizes again) based on the
usage of the code. Since it remains around, it can make optimistic
assumptions and then adjust the code if actual execution path
doesn't follow the optimistic assumptions (this can happen - when
dynamically loaded classes are used). This allows the compiler to
fine tune the generated code on a continuous basis. Memory allocation
and garbage collection has long been a sore point of Java. In the
demo, they ran a Java program that allocated 1,000,000 objects.

In Symantec's JIT it took 12 seconds
In Microsoft's JIT it took 9 seconds
In C++ code of just new/delete it took 7 seconds.
In Hot Spot it took 5 seconds.
(faster than C++ ? Yes, in this specific area !)

This new generation of Adaptive Java compiler will finally bring
performance of Java code in the same range as C/C++. This was their
prediction for 1998. Hot Spot compiler is still a several
months away from being released.

Presentations were being made simultaneously in 7 tracks. In addition,
there were numerous Birds of Feather meetings, and other conferences
and meetings. I had to select a narrow set of presentations. I
selected some based on immediate need. Others I selected based on
future direction and architecture.

Some interesting things that are going on now and can be used are (by
no means an exhaustive list)
-- Java 3D API : allows you to create virtual worlds from a
variety of existing formats and provides a
rich framework
-- Java Activator: To get and run your applet in the required /
latest Java VM. This is a means of getting
around the slow implementation of newer releases
of JDK in the browsers.
-- Java Speech API
-- Java Help API
-- New Security in JDK 1.2
-- Java Server Toolkit : allows servelets with embedded Java (and
HTML), and built in Java Objects.


However, from an architectural point of view, and for future
development, I came away with this new thing now being called
Enterprise Java Beans. EJB's are different enough to deserve their
own name (since they are more than a regular Java Bean). EJB is an
architecture that describes how these enterprise wide beans can be
created and accessed. EJB's are distributed and accessed in a
distributed manner. There are several roles (bean provider, bean
deployer, application deployer, service provider, system
administration, and transaction management). Transaction management
is done outside of the bean and is specified at the time of bean
deployment. EJB specification covers a lot of territory. However, it
has a lot of power. Assuming that the tool vendors will supply the
missing links, EJB can be easy to develop.

So when I visited Borland and Symantec booths (several times) I had
two goals in mind:
1. How well will they support the new JDK 1.2
2. How easy can they make Enterprise Java Beans Development.

I was comparing beta products (of Borland's JBuilder and Visual Cafe).
I saw better of support for JDK 1.2 in JBuilder. Specifically, in JDK
1.2 the GUI components, also known as "swing set" introduces new
concepts like the rootpane, contentpane, and z-ordering. Correct
support for JDK 1.2 should include an understanding of these.

This was present in JBuilder.

For EJB development, there was ample support in JBuilder, including
creation of new/intermediate classes from the IDL (Interface
Definition Language). Other impressive improvements in JBuilder
include:
1. Context sensitive help
2. Code completion and method signature available on-the-fly.
3. 85% of JBuilder in now written in Java - up from 60% in JBuilder
1.0. (Does this mean that it will be available on other platforms
as well ?)

With JBuilder taking a distinct lead and advancing on several fronts,
this bodes well for Borland. Renewing my faith that they are widening
the lead and will continue to churn out development tools that are
better.

Bipin Prasad