Ever since the launch of Java EE 7 and its component JSRs, Oracle
has been very committed to a high level of transparency for all of
the JSRs under the Java EE 7 umbrella. We're so excited that
increased transparency has resulted in more useful feedback that has
improved the Java EE platform. Let me tell you what we've done, how
it's helped, and how you can get involved too.
The transparency checklist by each JSR is explained in the table
Many of our spec leads have gone beyond this in their outreach to
the community with blogs, talks, chats, and more. The Java EE 7
Expert Group recently concluded a public
survey seeking community input to define key areas in the
platform such as which specifications should be included in the Web
Profile, should CDI be enabled by default, expanded use of @Stereotype,
and expansions of Interceptors to all Java EE components. Over 1100
respondents voted, make their voices heard, and help decide the
direction of the platform.
The table below provides:
Public website for each specification in Java EE 7. All of our
JSRs that are part of the Java EE 7 Platform are being run in
the open, using java.net projects. These JSRs, and links
to their respective projects are listed on the home
page of the Java EE 7 Platform JSR and in the table below.
Each page has publicly viewable Expert Group mailing lists as
Users observer lists. The Users lists receive copies of all
expert group emails, as well as providing users the ability to
post feedback and engage in discussions with each other and with
expert group members. All lists have publicly viewable archives
on the java.net project sites.
Similarly, all projects have publicly accessible download areas,
and JIRA issue trackers where bugs and suggestions for new
features can be posted, and which also serve as another means of
discussion with EG members. The schedules and interim drafts of
the specification were posted on the main project page and
publicly visible Downloads area.
Transparency Checklist columns shows the status of different
JSRs meeting the transparency requirements of JCP 2.8.
Community Participation represents the increase in community
participation above and beyond the core Expert Group for each
Specification. As you can see the participation from the
community outside the Expert Group is pretty significant and has
worked really well.
To encourage further community participation, different Java
EE 7 Expert Groups defined specific areas to provide feedback
using Adopt-a-JSR. We saw
tremendous success with the effort with several JUGs joining the
effort. The last column lists different JUGs that have adopted a
particular JSR. In several cases, JUGs have adopted multiple
London Java Community (LJC) organized a WebSocket
and JSON Hack Day. The event was sold out within 2 hours
and had 17 people on the waiting list. The event started with a
presentation on explaining the APIs in Java API for WebSocket
(JSR 353) and Java API for JSON Processing (JSR 353). The
attendees designed a Market Ticker application. All the presentation
material and source code
was shared publicly. LJC also created projects (cdiex-palindrom-jsf
to test CDI 1.1 specification.
Chennai JUG is building a multi-player game that can be played
across the Internet. The application uses Java API for WebSocket
1.0 (JSR 356), Java API for JSON Processing 1.0 (JSR 353), Java
Persistence API 2.1 (JSR 338), JavaServer Faces 2.2 (JSR 344)
and Batch Applications for Java Platform (JSR 352) and/or
Enterprise JavaBeans 3.2 (JSR 345) and so provide a holistic
experience of building a Java EE 7 application. The energetic
JUG meets regularly using G+ hangouts and in the neighborhood
coffee shops to coordinate. And then they go hacking the
application on github.
There are 5 developers that are regularly contributing to the
application and the JUG plans to incorporate several other
technologies as part of an ongoing effort.
BeJUG has adopted JSR 356 have planned a hackathon
on Mar 6th. They plan to build a cross-browser Tic-Tac-Toe
application using JSR 356. One of the JUG members is on its way
to become a committer in Tyrus
- the Reference Implementation for JSR 356.
Ceara JUG has planned a set of presentations
on Mar 9 by on JAX-RS 2.0 (JSR 339), Java API for JSON
Processing (JSR 353), JavaServer Faces 2.2 (JSR 344), and Java
API for WebSocket (JSR 356).
SouJava is contributing by adding new features from JSF 2.2 to
Several other JUGs are doing an outstanding work and contributing
towards making Java EE 7 as the best release ever. All these efforts
truly indicate that Java EE 7 is getting grass roots participation
from the global community. This truly allows early feedback on the
specification and implementation from the end user and developers
who will eventually use these APIs. Overall this leads to a higher
quality deliverables and will hopefully eventually lead to a faster
adoption as well.
Even though many of the JSRs have gone through Public Review Ballot
and others are in progress, its never too late to contribute. So how
do you contribute ? Just follow this three step process:
Join a JUG: If you do not participate in your local
Java User Group, then find your
local JUG and participate. There are several already
active JUGs around the world. If one does not exist in your
neighborhood, now is your time to shine as a leader and start
Participate in Adopt-a-JSR: Encourage JUG members to
participate in the global Adopt-a-JSR
effort. Several JUGs are already participating and
contributing very effectively.
Thank you Spring framework for
filling the interim gap and providing functionality that is now
included in the mainstream Java EE 6 application servers. The Java
EE platform has evolved over the years learning from frameworks
like Spring and provides all the functionality to build an
enterprise application. Thank you very much Spring framework!
While Spring was revolutionary in its time and is still very popular
and quite main stream in the same way Struts was circa 2003, it
really is last generation's framework - some people are even calling
However my theory is "code is king". So my approach is to build/take
a simple Hello World CRUD application in Java EE 6 and Spring and
compare the deployable artifacts.
I started looking at the official tutorial Developing
a Spring Framework MVC Application Step-by-Step but it is
using the older version 2.5. I wasn't able to find any updated
version in the current 3.1 release. Next, I downloaded Spring Tool
Suite and thought that would provide some template samples to get
started. A least a quick search did not show any handy tutorials -
either video or text-based. So I searched and found a link to their
SVN repository at src.springframework.org/svn/spring-samples/.
I tried the "mvc-basic" sample and the generated WAR file was 4.43
While it was named a "basic" sample it seemed to come with 19
different libraries bundled but it was what I could find:
The app deployed fine on GlassFish 3.1.2 but the "@Controller
Example" link did not work as it was missing the context root.
With a bit of tweaking I could deploy the application and assume
that the account got created because no error was displayed in the
browser or server log.
Next I generated the WAR for "mvc-ajax" and the 5.1 MB WAR had 20
JARs (1 removed, 2 added):
Anyway, deploying this application gave the following error:
Caused by: java.lang.NoSuchMethodError: org.codehaus.jackson.map.SerializationConfig.<init>(Lorg/codehaus/jackson/map/ClassIntrospector;Lorg/codehaus/jackson/map/AnnotationIntrospector;Lorg/codehaus/jackson/map/introspect/VisibilityChecker;Lorg/codehaus/jackson/map/jsontype/SubtypeResolver;)V at org.springframework.samples.mvc.ajax.json.ConversionServiceAwareObjectMapper.<init>(ConversionServiceAwareObjectMapper.java:20) at org.springframework.samples.mvc.ajax.json.JacksonConversionServiceConfigurer.postProcessAfterInitialization(JacksonConversionServiceConfigurer.java:40) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyBeanPostProcessorsAfterInitialization(AbstractAutowireCapableBeanFactory.java:407)
Seems like some incorrect repos in the "pom.xml".
Next one is "mvc-showcase" and the 6.49 MB WAR now has 28 JARs as
The app at least deployed and showed results this time. But still no
Next I tried building "jpetstore" and got the error:
[ERROR] Failed to execute goal on project org.springframework.samples.jpetstore: Could not resolve dependencies for project org.springframework.samples: org.springframework.samples.jpetstore:war:1.0.0-SNAPSHOT: Failed to collect dependencies for [commons-fileupload:commons-fileupload:jar:1.2.1 (compile), org.apache.struts:com.springsource.org.apache.struts:jar:1.2.9 (compile), javax.xml.rpc:com.springsource.javax.xml.rpc:jar:1.1.0 (compile), org.apache.commons:com.springsource.org.apache.commons.dbcp:jar:1.2.2.osgi (compile), commons-io:commons-io:jar:1.3.2 (compile), hsqldb:hsqldb:jar:188.8.131.52 (compile), org.apache.tiles:tiles-core:jar:2.2.0 (compile), org.apache.tiles:tiles-jsp:jar:2.2.0 (compile), org.tuckey:urlrewritefilter:jar:3.1.0 (compile), org.springframework:spring-webmvc:jar: 3.0.0.BUILD-SNAPSHOT (compile), org.springframework:spring-orm:jar:3.0.0.BUILD-SNAPSHOT (compile), org.springframework:spring-context-support:jar:3.0.0.BUILD-SNAPSHOT (compile), org.springframework.webflow:spring-js:jar:2.0.7.RELEASE (compile), org.apache.ibatis: com.springsource.com.ibatis:jar:184.108.40.2066 (runtime), com.caucho:com.springsource.com. caucho:jar:3.2.1 (compile), org.apache.axis:com.springsource.org.apache.axis:jar:1.4.0 (compile), javax.wsdl:com.springsource.javax.wsdl:jar:1.6.1 (compile), javax.servlet:jstl:jar:1.2 (runtime), org.aspectj:aspectjweaver:jar:1.6.5 (compile), javax.servlet:servlet-api:jar:2.5 (provided), javax.servlet.jsp:jsp-api:jar:2.1 (provided), junit:junit:jar:4.6 (test)]: Failed to read artifact descriptor for org.springframework:spring-webmvc:jar:3.0.0.BUILD-SNAPSHOT: Could not transfer artifact org.springframework:spring-webmvc:pom:3.0.0.BUILD-SNAPSHOT from/to JBoss repository (http://repository.jboss.com/maven2): Access denied to: http:// repository.jboss.com/maven2/org/springframework/spring-webmvc/3.0.0.BUILD-SNAPSHOT/ spring-webmvc-3.0.0.BUILD-SNAPSHOT.pom
It appears the sample is broken - maybe I was pulling from the wrong
repository - would be great if someone were to point me at a good
target to use here.
With a 50% hit on samples in this repository, I started searching
through numerous blogs, most of which have either outdated
information (using XML-heavy Spring 2.5), some piece of
configuration (which is a typical "feature" of Spring) is missing,
or too much complexity in the sample. I finally found this
blog that worked like a charm. This blog creates a trivial
Spring MVC 3 application using Hibernate and MySQL. This application
performs CRUD operations on a single table in a database using
typical Spring technologies. I downloaded the sample code from
the blog, deployed it on GlassFish 3.1.2 and could CRUD the "person"
entity. The source code for this application can be downloaded
here. More details on the application statistics below.
The Spring Source Tool Suite may also offer similar wizard-driven
capabilities but this blog focus primarily on comparing the
runtimes. The lack of STS tutorials was slightly disappointing as
well. NetBeans however has tons of text-based and video tutorials
and tons of material even by the community. One more bit
on the download size of tools bundle ...
NetBeans 7.1.1 "All" is 211 MB (which includes GlassFish and Tomcat)
Spring Tool Suite 2.9.0 is 347 MB (~ 65% bigger)
This blog is not about the tooling comparison so back to the Java EE
6 version of the application ....
In order to run the Java EE version on GlassFish, copy the MySQL
Connector/J to glassfish3/glassfish/domains/domain1/lib/ext
directory and create a JDBC connection pool and JDBC resource as:
I generated WARs for the two projects and the table below highlights
some differences between them:
Java EE 6
WAR File Size
10.87 MB (~516x)
Number of files
53 (> 2.5x)
Total size of
LoC in XML files
50 (11 + 15 + 24)
129 (27 + 46 + 16 +
11 + 19) (~ 2.5x)
Some points worth highlighting from the table ...
516x WAR file, 10x deployment
time - With 12.1 MB of libraries (for a very basic
application) bundled in your application, the WAR file size and
the deployment time will naturally go higher. The WAR file for
Spring-based application is 516x bigger and the deployment time
is double during the first deployment and ~ 10x during
subsequent deployments. The Java EE 6 application is fully
portable and will run on any Java EE 6 compliant application
36 libraries in the WAR
- There are 14
EE 6 compliant application servers today. Each of those
servers provide all the functionality like transactions,
dependency injection, security, persistence, etc typically
required of an enterprise or web application. There is no need
to bundle 36 libraries worth 12.1 MB for a trivial CRUD
application. These 14 compliant application servers provide all
the functionality baked in.
Now you can also deploy these libraries in the container but
then you don't get the "portability" offered by Spring in that
case. Does your typical Spring deployment actually do that ?
3x LoC in XML - The
number of XML files is about 1.6x and the LoC is ~ 2.5x. So much
XML seems circa 2003 when the Java language had no annotations.
The XML files can be further reduced, e.g. faces-config.xml can
be replaced without providing i18n, but I just want to compare
Memory usage - Both
the applications were deployed on default GlassFish 3.1.2
installation and any additional memory consumed as part of
deployment/access was attributed to the application. This is by
no means scientific but at least provides an initial ballpark.
This area definitely needs more investigation.
Another table that compares typical Java EE 6 compliant
application servers and the custom-stack created for a Spring
Java EE 6
(tcServer 2.6.3 Developer Edition)
(Spring Security 3.1.0)
(Hibernate 4.1.0, required)
(Spring WS 2.0.4)
(RabbitMQ Server 2.7.1)
936 KB (Java client 936)
(Spring OSGi 1.2.1)
and WebLogic (starting at 33 MB)
There are differentiating factors on both the stacks. But most of
the functionality like security, persistence, and dependency
injection is baked in a Java EE 6 compliant application server but
needs to be individually managed and patched for a Spring
application. This very quickly leads to a "stack explosion". The
Java EE 6 servers are tested extensively on a variety of platforms
in different combinations whereas a Spring application developer is
responsible for testing with different JDKs, Operating Systems,
Versions, Patches, etc. Oracle
has both the leading OSS lightweight server with GlassFish and the
leading enterprise Java server with WebLogic Server, both Java EE 6
and both with lightweight deployment options.
The Web Container offered as part of a Java EE 6 application server
not only deploys your enterprise Java applications but also provide
operational management, diagnostics, and mission-critical
capabilities required by your applications.
The Java EE 6 platform also introduced the Web Profile which is a
subset of the specifications from the entire platform. It is
targeted at developers of modern web applications offering a
reasonably complete stack, composed of standard APIs, and is capable
out-of-the-box of addressing the needs of a large class of Web
applications. As your applications grow, the stack can grow to the
full Java EE 6 platform. The GlassFish Server Web Profile starting
at 33MB (smaller than just the non-standard tcServer) provides most
of the functionality typically required by a web application.
WebLogic provides battle-tested functionality for a high throughput,
low latency, and enterprise grade web application. No individual
managing or patching, all tested and commercially supported for you!
Note that VMWare does have a server, tcServer, but it is
non-standard and not even certified to the level of the standard Web
Profile most customers expect these days. Customers who choose this
risk proprietary lock-in since VMWare does not seem to want to
formally certify with either Java EE 6 Enterprise Platform or with
Java EE 6 Web Profile but of course it would be great if they were
to join the community and help their customers reduce the risk of
deploying on VMWare software.
Some more points to help you decide choose between Java EE 6 and
Freedom to choose container
- There are 14
EE 6 compliant application servers today, with a variety
of open source and commercial offerings. A Java EE 6 application
can be deployed on any of those containers. So if you deployed
your application on GlassFish today and would like to scale up
with your demands then you can deploy the same application to
WebLogic. And because of the portability of a Java EE 6
application, you can even take it a different vendor altogether.
Spring requires a runtime which could be any of these app
servers as well. But why use Spring when all the required
functionality is already baked into the application server
Spring also has a different definition of portability where they
claim to bundle all the libraries in the WAR file and move to
any application server. But we saw earlier how bloated that
archive could be.
The equivalent features in Spring runtime offerings (mainly
tcServer) are not all open source, not as mature, and often
require manual assembly.
Vendor choice - The
Java EE 6 platform is created using the Java Community Process
where all the big players like Oracle, IBM, RedHat, and Apache
are conritbuting to make the platform successful. Each
application server provides the basic Java EE 6 platform
compliance and has its own competitive offerings. This allows
you to choose an application server for deploying your Java EE 6
applications. If you are not happy with the support or feature
of one vendor then you can move your application to a different
vendor because of the portability promise offered by the
Spring is a set of products from a single company, one price
book, one support organization, one sustaining organization, one
sales organization, etc. If any of those cause a customer
headache, where do you go ? Java EE, backed by multiple vendors,
is a safer bet for those that are risk averse.
Production support -
With Spring, typically you need to get support from two vendors
- VMWare and the container provider. With Java EE 6, all of this
is typically provided by one vendor. For example, Oracle offers
commercial support from systems, operating systems, JDK,
application server, and applications on top of them. VMWare
certainly offers complete production support but do you really
want to put all your eggs in one basket ?
Do you really use tcServer ? ;-)
Maintainability - With
Spring, you are likely building your own distribution with
multiple JAR files, integrating, patching, versioning, etc of
all those components. Spring's claim is that multiple JAR files
allow you to go à la carte and pick the latest versions of
different components. But who is responsible for testing whether
all these versions work together ?
Yep, you got it, its YOU!
If something does not work, who patches and maintains the JARs ?
Of course, you!
Commercial support for such a configuration ? On your own!
The Java EE application servers manage all of this for you and
provide a well-tested and commercially supported bundle.
While it is always good to realize that there is something new and
improved that updates and replaces older frameworks like Spring, the
good news is not only does a Java EE 6 container offer what is
described here, most also will let you deploy and run your Spring
applications on them while you go through an upgrade to a more
modern architecture. End result, you get the best of both worlds -
keeping your legacy investment but moving to a more agile,
lightweight world of Java EE 6.
A message to the Spring lovers ...
The complexity in J2EE 1.2, 1.3, and 1.4 led to the genesis of
Spring but that was in 2004. This is 2012 and the name has changed
to "Java EE 6" :-) There are tons of improvements in the Java EE
platform to make it easy-to-use and powerful. Some examples:
Adding @Stateless on a POJO makes it an EJB
EJBs can be packaged in a WAR with no special packaging or
"web.xml" and "faces-config.xml" are optional in most of the
Typesafe dependency injection is now part of the Java EE
Add @Path on a POJO allows you to publish it as a RESTful
EJBs can be used as backing beans for Facelets-driven JSF
pages providing full MVC
Java EE 6 WARs are known to be kilobytes in size and deployed
Tons of other simplifications in the platform and application
So if you moved away from J2EE to Spring many years ago and have not
looked at Java EE 6 (which has been out since Dec 2009) then you
should definitely try it out. Just be at least aware of what other
alternatives are available instead of restricting yourself to one
stack. Here are some workshops and screencasts worth trying:
#37 shows how to build an end-to-end application using
is a 3-4 hours self-paced hands-on workshop that guides you to
build a comprehensive Java EE 6 application using NetBeans
Each city generally has a "spring cleanup" program every year. It
allows you to clean up the mess from your house. For your software
projects, you don't need to wait for an annual event, just get
started and reduce the technical debt now! Move away from your
legacy Spring-based applications to a lighter and more modern
approach of building enterprise Java applications using Java EE 6.
Watch this beautiful presentation that explains how to migrate from
Spring -> Java EE 6:
The City of Sao Paulo marks
one lane exclusively for bikers (the pedal ones ;) on
Sundays and national holidays. The 45 km route through the
city is served by tons of volunteers providing directions
and safety with the traffic in other lanes. The lanes are
well marked and is a way to make to promote healthy
lifestyle in the city. The ride is mostly flat with one
small hill towards the end. Check out CicloFaixa for
Fabiane Nardon and gang used
this opportunity to arrange a Geek Bike Ride for the local
community to meet JavaOne speakers in an informal setting.
Our bike angels Fabiane, Claudio, and Fernando did a
fabulous job of keeping the riders together. Claudio not
only completed 4000 km on his bike yesterday but is also one
of the best know agile speakers in Brazil. I had the
opportunity to work with Fernando on the release of the largest
local guide deployment in Brazil and he is a sharp
guy. And everybody knows Fabiane, a Java Champion, Duke
Choice Award winner, entrepreneur,
java.net Tools Community Manager, and a lot more.
There were no technology discussions, just pure fun, laughter, and a
I shared a bunch of Odwalla bars with all the bikers and they were
well appreciated. Check out the picture below for the riders getting
powered by an Odwalla bar before the ride:
There were about 120+ attendees at the GlassFish Community
Event where we provided a health report on the community, shared product roadmap,
and heard some brilliant stories from Johan Vos, Stephan Janssen, Fabiane Nardon,
Adam Bien, and Seam Comerford on how they are using GlassFish to block 650k
spams/day at Mollom, serving 3000 requests/second at ESPN, serving 1400
concurrent connections at RBS, and enjoy that the community is serving,
transparent, thoughtful, and caring. The stories were all recorded and will be
shared on blogs.oracle.com/stories
Here are some tweets ...
Good fun at the #GlassFish community event. Always great to be catching up
So unexpectedly exciting to finally meet #Glassfish users in person after
badgering them electronically for years! #JavaOne11
@project_grizzly gettin' some love in the #glassfish community event. #javaone11
First short #JavaOne11 talk: "How Parleys.com uses #Glassfish" done.
#javaone good discussion/comments about java ee in the cloud, with #glassfish in
#glassfish has moved at a fast pace in the last year, advancing one whole minor
release (3.0.1 -> 3.1.1) Oracle is committed. #javaone11
That's nice, the #glassfish is and will be strong in Oracle hands, actually they
said they are hiring :). Cool
The crowd is a little bit shy, whatever I'm sort of happy :) #glassfish rules !
The mingling at Glassfish unconference did not work very well but the customer
stories made it be worth being there.
Just had good time on the #glassfish community event
The glassfish unconference ended with making things from lego - I will have to
explain to my children why I had to fly to USA to do this!
Glassfish seems to further gain momentum. Having been absorbed into Oracle has
only strengthened the product - despite initial fears. #oow11
Enjoy some pictures from the event ...
And then some from the Thirsty Bear Party ...
Feet hurt, but we had a great time at the #glassfish event at the Thirsty
Really enjoyed the #Glassfish party, met lots of Java community friends. And
yes, James Gosling is attending Devoxx IF his wife lets him :)
The #glassfish party was nice, and it was great to be in the Thirsty Bear again
#javaone11 #glassfish community day: met lots of twitter / blogging / email
virtual friends in real world. Looking forward to the keynote!
Had a great time at the #Glassfish party last night
The Glassfish party was great! Looking forward to the first technical keynote now. #javaone11
earlier, the GlassFish Community Event and Party are planned along
with JavaOne 2011. Please sign up for the community event by clicking
on the image below:
And the party is at The Thirsty
Bear from 7:30pm - 9:30pm on the same day. Please sign up for the
party by clicking on the image below:
The above links require you to have a Facebook account. But if you do not have a Facebook credentials, or don't want to sign up, then you can also add your acknowledgement at this wiki, or leave a comment on this blog, or reach us at @glassfish.
(either Oracle Open World or JavaOne) is required to attend the
community event and the party is open to all friends of GlassFish.
I've attended the event for the past four years and it has been an
extremely rewarding and fun experience. And as Johan Vos pointed out:
Glassfish community event is always one of the highlights of JavaOne. Main reason to fly in earlier.
Check out a collage of pictures
from the past years:
As in the previous years (2010, 2009, 2008 (more), and 2007), the GlassFish community event and party are getting planned along with JavaOne 2011 as well. Here are the coordinates for the community event:
Date: Sunday, October 2nd, 2011 Time: 12:30pm - 4:30pm Venue: Moscone West
This is your chance to meet the core members of engineering, product management, executive management, and rest of the team. This is your (yet another) chance to voice your opinion and be heard. There will be community updates, customer testimonials, unconference, and fun activities too. Stay tuned for more details.
Here are some pictures from the yesteryears:
A conference badge will be required to attend the community event but the party will be open to all friends of GlassFish. So if you are in town, plan to stop by at the community event and/or the party. Stay tuned for RSVP details.
Its going to be lot of fun!
QA#10: Simplified Java Development, Focus on building great products
This entry comes from Marcus Kara who is 25 years old, living in The Netherlands with his wife & 1 year old daughter. Software developer for living for over 4 years. Really interested in technology in general and also did electronic engineering in the spare time, but there is a little spare time with a child.
He likes Java because its platform independent (in a "the write once, run anywhere" way and vendor independent way) and there is a real eco-system around Java. The possibilities are endless (for some people this is a reason to not choose Java :-) ).
The WORA concept of Java really impressed him when he bought a 100 Euro NAS (Lacie NetworkStorage 2, simple ARM-based NAS) and started GlassFish v3 on it. It just runs without any hassle. He is called "idiot" for running an enterprise app server on a NAS :-).
Here is a short summary of Java EE 6 from him:
Do more with less! It's almost no effort to create an enterprise application.
Keep reading for the fun stuff ...
1. How are you using Java EE 6 today ? What limits your adoption ?
We're currently using Java EE 6 for all new Java projects. Since we have some small projects we can choose our platform every time we have a new project. I was using Java EE 5 before Java EE 6 was out. We started to create Java EE 6 applications about a year ago. First application in production is now about half-year ago. Since Java EE 6 has so many advantages over Java EE 5 we quickly adopted Java EE 6, honestly without limits.
2. What Java EE 6 technologies are you using and why ?
Currently we use the web profile for our applications, it's really lightweight (if you compared it to a full Java EE 5 app server). We're trying to get the most out of the platform, so grab the new possibilities with both hands. Since we were using Facelets also on JSF 1.2 it's no surprise that we love using JSF 2.0. The f:ajax tag really rocks and works! Also the lack of faces.xml configuration also simplified development. The new version of JPA with better cache handling also improves our application performance. The feature what I really like is definitely CDI, Injection & Validation are things we were really missing in the Java EE API.
3. What is your development and deployment environment ?
We develop our applications in Netbeans 6.9 on a local Glassfish v3.0.1 installation. The in-place deployment feature of Netbeans & Glassfish speeds up development, no need to wait a long time if you made a change in your code.
Our deployment environment currently: Test: 1x Glassfish v3.1, 1x Glassfish v3.0.1 Production: 1x Glassfish v2.1 cluster (3 nodes), 1x Glassfish v3.0.1 server, currently planning an upgrade of our Glassfish v2.1 cluster to Glassfish v3.1. We mainly use MySQL as our RDMS, but we also have a lot Oracle & MS SQL servers. These are mosly used for getting data.
More details on the GlassFish production deployment coming in a separate entry.
4. What previous versions of Java EE / J2EE have you used ? How has the migration to Java EE 6 benefited ?
As mentioned by question 1, we're using Java EE 5. I looked to SpringSource but a migration would take some time and I really don't like all the xml configuration of the beans in Spring (I don't know what the current status is). The migration from Java EE 5 to Java EE 6 has a lot of benefits, most important one is that the platform is much more efficient in an development way. Less hassle and do more. The API's included in Java EE 6 (almost) don't require to use other frameworks/libraries.
5. Describe the benefits of Java EE 6 to you in 120 characters.
Do more with less! It's almost no effort to create an enterprise application.
6. Advice for anybody who is looking at Java EE 6 for their next project ?
You should definitely use the CDI API. The first one I created a project on JSF2 and JPA without CDI. After Alexis Moussine-Pouchkine inspired my at the J-Fall 2010 conference I took some time to get into CDI and really loved it!
7. What new features you'd like to see in Java EE 7 ?
Built-in kind of @ViewScope (JSF2 annotation) also in CDI. Built-in SeamFaces.
Thank you Marcus for taking time to prepare the answers!
Are you developing, deploying, consulting, training, authoring books, etc in Java EE 6 and would like to express your opinion in a similar format ? Drop acomment on this blog and I'll line you up for the Q&A session :-)
The Java EE 6 hub is your key resource to learn all about the technology.