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Spring Town

Dependency injection. It's a smart approach. Believe that? We do! Come on in and share what you know. Ask all your Spring questions here, too!

Members: 47
Latest Activity: Sep 21, 2019

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Notes from JCertif, in Brazzaville, Republic of Congo

Started by Michael Levin Aug 28, 2010.

Sample Application using JSF, Spring 2.5, and Java Persistence APIs 2 Replies

Started by Carol McDonald. Last reply by Christian Laboranowitsch May 28, 2009.

Getting started with SpringMVC easily

Started by Zemian Deng Aug 28, 2008.

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Comment by Federico Nicolàs Casabianca on July 14, 2009 at 11:57am
hi guys i´m configuring the enviroment with spring and jpa (top link as provider) with tomcat. But i´ve got a problem. When i execute that sentence this.getJpaTemplate().persist(user); the follow exceptions is raised:
Object: com.blank.model.User@136055d is not a known entity type.
Please if anyone knows how i can solve that issue i will appreciate your help.
Thanks.
Best.
Comment by sony john on June 2, 2009 at 11:37pm
Thank You Neil ,

In my spring application iam using DAO to connect to database.
Iam able to get DAO object only in Validation class. Is it possible inject DAO object to Command class in Simple Form Controller.
Thanks in advance .
Comment by sony john on May 23, 2009 at 10:28am
Iam new to spring i would like to integrate spring with hibernate any one have any idea
Comment by Jose Diaz Diaz on May 22, 2009 at 11:47am
Hello Adit, in the page of jetbrains there are good demos. In SpringPeru.com are the slides and demos of the integration of flex with spring.
Regards
Joe
Comment by Anirudh Vyas on May 22, 2009 at 11:06am
Adit,

Google Spring Blaze DS.
Comment by Adit Shetty on May 22, 2009 at 9:30am
Hi iam new to spring . Does anyone have any idea on integration of Flex with Springs framework
Comment by sony john on May 22, 2009 at 1:11am
Hi
I got the following tutorials

http://maestric.com/en/doc/java/spring
Comment by Anirudh Vyas on May 21, 2009 at 1:52pm
I wish Spring source offered "weekend" training sessions instead of "weekday" sessions or may be both?! ...

Just what stops me from taking something up.
Comment by Dominic Da Silva on March 28, 2009 at 7:29pm
So what did people think of the Spring Dynamic Modules presentation at OJUG.
I for one liked what OSGi has to offer for web app development. Seems to allow for more abstracted layer for partitioning your application. Also liked that Spring's annotations for configuration. I have been using Seam and JPA's annotations and loved it. I have heard lots of griping about annotations, but I myself enjoy using them...
Comment by Jim  Moore on August 27, 2008 at 10:13pm
One of the easiest way to get started with Spring is to download the distribution, which includes sample apps. The reference docs are awesome, but if you want a more "gentle" intro, Spring In Action ed 2 is great.
 

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Happy 10th year, JCertif!

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Created by Michael Levin Dec 18, 2008 at 6:56pm. Last updated by Michael Levin May 4, 2018.

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InfoQ Reading List

Presentation: Duolingo's Kubernetes Leap

Franka Passing discusses the architectural shift of Duolingo’s 500+ backend services to Kubernetes. She explains the move toward GitOps with Argo CD, the transition to IPv6-only pods, and the "cellular architecture" used to isolate environments. She shares "reports from the trenches" on managing developer trust, navigating AWS rate limits, and productionizing early adopter services.

By Franka Passing

Article: A Better Alternative to Reducing CI Regression Test Suite Sizes

How can you focus in a sea of results from a large regression test suite? This article describes a stochastic approach that relies on some degree of redundancy in your CI regression test set. This approach does not guarantee you will catch every bug every time, but it gives you your best bet of not missing the subtle signatures of all the bugs uncovered by your CI regression test suite runs.

By James Bornefelt Westfall

Podcast: Context Engineering with Adi Polak

In this episode, Thomas Betts and Adi Polak talk about the need for context engineering when interacting with LLMs and designing agentic systems. Prompt engineering techniques work with a stateless approach, while context engineering allows AI systems to be stateful.

By Adi Polak

Dynamic Languages Faster and Cheaper in 13-Language Claude Code Benchmark

A 600-run benchmark by Ruby committer Yusuke Endoh tested Claude Code across 13 languages, implementing a simplified Git. Ruby, Python, and JavaScript were the fastest and cheapest, at $0.36- $0.39 per run. Statistically typed languages cost 1.4-2.6x more. Adding type checkers to dynamic languages imposed 1.6-3.2x slowdowns. Full dataset available on GitHub.

By Steef-Jan Wiggers

Java News Roundup: TornadoVM 4.0, Google ADK for Java 1.0, Grails, Tomcat, Log4j, Gradle

This week's Java roundup for March 30th, 2026, features news highlighting: the GA release of TornadoVM 4.0 and Google ADK for Java 1.0; first release candidates of Grails and Gradle; maintenance releases of Micronaut, Apache Tomcart and Apache Log4j; and an update on Jakarta EE 12.

By Michael Redlich

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