Rod Johnson @springrod Twitter profile

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Rod Johnson

@springrod

5 years

How can serverless have server errors? Just tried to invoke a Lambda through HTTP and got {"message": "Internal server error"}

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Rod Johnson

@springrod

6 months

Working full time in Java again after more than 10 years is an interesting experience. I've done a lot of Scala, TypeScript and Python in the interim--of which I strongly prefer TypeScript. I'm thinking of blogging/talking/tweeting about the journey. #Java

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Rod Johnson

@springrod

2 years

Another interesting point from this era: There were people from the community who made extremely valuable contributions to the docs, but never contributed code. Open source is about far more than the codebase.

Vlad Mihalcea

@vlad_mihalcea

3 years

The reason why I started using @springframework in 2004 is because of its manual written by @springrod and the team. I was sold right away. Never underestimate the impact of documentation.

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Rod Johnson

@springrod

5 years

Too many app developers undervalue the potential of triggers, stored procedures and views as an abstraction layer when using an RDBMS.

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Rod Johnson

@springrod

5 years

Over 15 years in, I still love TDD and can't imagine how I lived without it.

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Rod Johnson

@springrod

5 years

"Why Microservices Should Scare you" - Worth reading. I agree re the "standardization" and "DevOps" problems.

Why Microservices Should Scare You More

Can’t I just write lots of small programs?

medium.com

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Rod Johnson

@springrod

5 years

"If I can reproduce it in a unit test, I can fix it." The TDD equivalent of Arnie's classic line in Predator - "If it bleeds, we can kill it." That bug's days are numbered.

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Rod Johnson

@springrod

5 years

My true thoughts on YAML.

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Rod Johnson

@springrod

5 years

@mykola This makes sense. And implies that alchemists should really have focused on developing dragon laxatives

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Rod Johnson

@springrod

29 days

get/set - gone! 25 years after I embraced JavaBeans, I'm happy to see records killing JavaBean conventions. They're not needed any more. It's just a matter of time for APIs to evolve.

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Rod Johnson

@springrod

6 years

As things get smaller (monoliths > microservices > lambdas), the ratio of configuration/code -- which had been getting better -- gets worse again. Possibly unavoidable, but creates the need for tools that work at scale across many services

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Rod Johnson

@springrod

6 years

Fascinating. Even I'm surprised at how dominant Spring is--as it deserves to be. Other key points: Most Spring projects are Spring Boot; Spring 5 and Spring Boot 2 uptake is already remarkably high, and Kotlin is growing like crazy. @springboot @kotlin

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Rod Johnson

@springrod

5 years

SQL is a pretty good DSL

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Rod Johnson

@springrod

6 years

Thrilled to announce that the Atomist Software Delivery Machine API is ready to use in open source, on a laptop near you. . It's time to develop your development/delivery experience in a real programming language, rather than YAML and Bash @atomist

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Rod Johnson

@springrod

7 years

Spring 5 is cool. So is Kotlin and the @atomist generator I built based on @starbuxman sample. #typescript #kotlin

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Rod Johnson

@springrod

6 years

It's on track to be the dominant programming language unless we come to our senses

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Rod Johnson

@springrod

5 years

Part of the meaning of "enterprise" is always to be migrating from something to something else

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Rod Johnson

@springrod

8 years

Just published my first blog for 4 years, about @atomist editors. I'm excited about this! #atomist

Software That Writes And Evolves Software

I’ve been quiet lately, largely because I’ve been writing a lot of code. Today, I’m delighted to start talking about some of what we’ve…

medium.com

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Rod Johnson

@springrod

3 months

Interesting talk on Netflix's current use of Java. . "Since about a year or so we have completely standardized on Spring Boot." "It is quite amazing...that that framework has been so stable and so well-evolved."

How Netflix Really Uses Java

Paul Bakker discusses Netflix’s use of Java, emphasizing the use of microservices, RxJava, Hystrix and Spring Cloud.

www.infoq.com

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Rod Johnson

@springrod

6 months

1/2 Perhaps surprising opinion: Java is a great language for developing #GenAI apps. Why? 1. Don't need to use Python, as communicating with big models via HTTP is easy in any language. 2. Useful apps often require a bunch of async/persistence stuff where Java beats Python.

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Rod Johnson

@springrod

6 years

With all due respect to Eclipse, the home of cloud native Java is @springframework and @springboot , which have enabled Java to lead in microservices. I wish @JakartaEE the best, but it's a distant challenger in a mature space

Michael P. Redlich #IStandWithUkraine 🇺🇦

@mpredli

6 years

Cloud Native Java has a new home: @JakartaEE ...my latest @InfoQ news piece featuring a comprehensive interview with @mmilinkov , executive director at @EclipseFdn ... #JakartaEE

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Rod Johnson

@springrod

3 months

Spring AI is progressing nicely. Good to see the integration between LLM calls and Spring context, as with @Beans surfacing as OpenAI functions.

Spring AI

Level up your Java code and explore what Spring can do for you.

spring.io

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Rod Johnson

@springrod

22 days

Amazing how good Java testing experience has gotten. DI+AOP made it possible to unit test code without a server. Spring integration testing functionality is awesome. @testcontainers adds the last bit of magic. Makes me smile to run a test suite using a real DB in 2 minutes.

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Rod Johnson

@springrod

6 years

The new Java Flogger logging library looks interesting, but I particularly like the "Anatomy" discussion about tradeoffs. Well worth reading.

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Rod Johnson

@springrod

5 years

This is a big deal. How it plays out will determine the future of open source and customer choice. We risk a future more proprietary than Microsoft or Oracle ever dreamt of.

AWS gives open source the middle finger | TechCrunch

AWS launched DocumentDB today, a new database offering that is compatible with the MongoDB API. The company describes DocumentDB as a "fast, scalable, and

techcrunch.com

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Rod Johnson

@springrod

6 years

Controversial thought: Are languages most productive when they are imperfect, yet do not suck? Take Java and modern JavaScript. No one thinks they're ideal, yet they have spawned valuable, practical ecosystems vs academic purity. Is that chance?

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Rod Johnson

@springrod

3 months

And still going strong into the Gen AI era. The core concepts stand up very well today, but the magic has been the amazing--and remarkably stable--team. Supporting and supported by a great community.

Josh Long

@starbuxman

3 months

Happy 20th birthday to @SpringFramework 1.0, which was released on March 24th, 2004, with an awesome announcement blog by the amazing @trisberg !!

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Rod Johnson

@springrod

6 years

The days when it was defensible to look down on JavaScript are long gone. ES6/ES7 are pretty good and #TypeScript is great. There are still quirks & it will never be pure, but it's massively useful. Given JS is everywhere and inescapable, that's good news.

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Rod Johnson

@springrod

6 years

Any time you reduce the cycle time of anything in development or delivery, you unleash more of the potential of developers

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Rod Johnson

@springrod

6 years

Amen! The precursor of Spring was an in-house MVC framework I wrote at FT in 2000 where "injection" was just for simple properties that needed to be parameterized. I generalized it partly because EJB 1.1 was hard to unit test. So Spring *exists* partly to facilitate unit testing

Oliver Drotbohm 🥁 & 👨‍💻

@odrotbohm

6 years

@stilkov I can’t remember any Java framework that has had more emphasis on user code being written in a way so that you can purely unit test it.

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Rod Johnson

@springrod

8 years

If it hasn't been tested, assume it doesn't work

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Rod Johnson

@springrod

5 years

"In a healthy piece of code, entropic decay is staved off by dozens of tiny interventions — bug fixes, test fixes, small refactors, migrating off a deprecated API". Excellent article: Some of that work can be automated, making it more likely to get done

Michael Feathers

@mfeathers

5 years

A codebase is an organism - (the frame you are never taught in software engineering)

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Rod Johnson

@springrod

3 months

My regular reminder to myself that composition is usually better than inheritance

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Rod Johnson

@springrod

6 years

Already a big Vonnegut fan, but didn't realize he understood software, too

Kurt Vonnegut

@Kurt_Vonnegut

6 years

Another flaw in the human character is that everybody wants to build and nobody wants to do maintenance.

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Rod Johnson

@springrod

8 years

Good error messages are like good documentation in code: A one-time investment by one person that can make many others more productive.

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Rod Johnson

@springrod

5 years

While premature optimization is evil, it *is* important to ask the question "could this ever be efficient?" Otherwise it's easy to design interfaces etc that are fundamentally broken and will need to change incompatibly.

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Rod Johnson

@springrod

6 years

Nice article on best practice for using var and local type inference in Java 10 - #java . This is really going to reduce noise in Java code.

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Rod Johnson

@springrod

5 years

I often find that being forced to think about backward compatibility leads to a better solution.

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Rod Johnson

@springrod

6 years

Delivery and infrastructure should be programmable using core development skills and practices. They're powerful. The work of Turing, Hopper, Dijkstra and so many other greats led to modern programming languages. Let's not ignore it and type ever more YAML.

Grumble Bundle

@monkchips

6 years

phrase. "Infrastructure as Typescript". See @PulumiCorp and @atomist

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Rod Johnson

@springrod

8 years

I continue to be amazed by the elegance, economy and consistency of Scala syntax #scala

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Rod Johnson

@springrod

7 years

It's ideal to achieve both, but writing the right code is even more important than writing the code right.Yet we tend to focus on the latter

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Rod Johnson

@springrod

3 months

Java has changed for the better. Improved case statement; instanceof binding to a variable to avoid casting; records etc. And tooling & libraries are great. The main thing that annoys me is collections. Having to go back and forth to streams is verbose and unreadable. Trying vavr

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Rod Johnson

@springrod

7 years

Really looking forward to attending and speaking at SpringOne Platform next month. See you there! @s1p @springframework @springboot

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Rod Johnson

@springrod

6 years

My new favorite error message: (node:47831) TimeoutOverflowWarning: Infinity does not fit into a 32-bit signed integer.

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Rod Johnson

@springrod

6 years

My talk at Spring One is now online. "Software Delivery Needs a Framework: Lessons from Spring". Creating and delivering Spring Boot apps can be easier than you imagined. @springboot @s1p @atomist #TypeScript

Software Delivery Needs a Framework: Lessons from Spring

We have frameworks for developing better software faster. Why do the tools for delivering software not afford that same level of efficiency? Code is a powerf...

www.youtube.com

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Rod Johnson

@springrod

5 years

I loved getting to reflect on the 18 year history of Spring at Spring One. My talk is up now. @s1p @spring_io @springboot

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Rod Johnson

@springrod

6 years

For anyone who's been waiting 20 years for CGI to come back, it's like Arnold Schwarzenegger.

Guillermo Rauch

@rauchg

6 years

. @now /bash is coming ◆ Yes, serverless bash functions ◆ Yes, pay-per-100ms and infinite horizontal scalability ◆ Yes, bash ftw by @tootallnate

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Rod Johnson

@springrod

5 years

We'll be showing best practice checks and autofixes where possible, e.g. "don't use setter injection," "do use Spring Test", don't use XML", "don't hardcode properties" and "keep Spring Boot version up to date". What would your favorite best practice be? @springboot @spring_io

Rod Johnson

@springrod

5 years

Looking forward to SpringOne in Austin next week. Talking about the history of Spring, and excited to show some cool stuff we've been doing at @atomist for @springboot @s1p

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Rod Johnson

@springrod

2 months

When Java finally gets interpolation, it may beat that in other languages. Love this example of creating a non-String type: PreparedStatement ps = DB."SELECT * FROM Person p WHERE p.last_name = \{name}"; var rs = ps.executeQuery();

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Rod Johnson

@springrod

8 years

Funny how implicits and other magic that apparently simplifies code are often what one wastes time on when returning to a codebase #scala

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Rod Johnson

@springrod

6 years

Java also benefits from autoformatting. I created an @atomist autofix to apply spring-format by @phillip_webb to any Java project without needing to change its build file. This is a classic crosscutting concern. @lewisheadden

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Rod Johnson

@springrod

7 years

Spring Boot your Slack team for greater productivity and visibility. #springboot #cloudfoundry #slack

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Rod Johnson

@springrod

5 years

Looking forward to SpringOne in Austin next week. Talking about the history of Spring, and excited to show some cool stuff we've been doing at @atomist for @springboot @s1p

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Rod Johnson

@springrod

6 years

Good API design: Small surface area, layered. Rather than mix levels of abstraction, expose a consistent set of primitives on which a helper layer can build, reducing coupling and encouraging innovation in usage.

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Rod Johnson

@springrod

6 years

The astonishing power of code. Use the @atomist API for software to drive #Kubernetes delivery for *all* Maven projects in a team in a few lines of #typescript . Goodbye all those duplicated YAML/Bash pipelines. Plus it's more flexible and easier to evolve

sındnp uɐıʇsıɹɥɔ

@cdupuis

6 years

Ever wanted to program your CI/CD using a concise API and framework instead of hacking YAML and scripts? With an @atomist #sdm you can do exactly that now on your laptop and in the cloud. Example shows @springboot to #Kubernetes build and deploy. -

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Rod Johnson

@springrod

6 years

Microsoft acquiring GitHub isn't cause for developers to worry: It's proof we are calling the shots.

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Rod Johnson

@springrod

6 years

@lukaseder @wattersjames @pivotalcf @springboot @springframework There was also an obsession with abstracting from the relational database. Stored procedures were thought evil. I remember writing a 200 line PL/SQL proc that replaced 20K lines of entity beans, ran in 2m vs 20m (req was <5m). And it being rejected as "not approved architecture"

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Rod Johnson

@springrod

6 years

Rethinking software delivery using code. New blog on what we've been working on at @atomist : #TypeScript #DevOps

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Rod Johnson

@springrod

6 years

Software delivery needs a framework just as much as app dev... As it's hard to find through google, thought I'd tweet the link to my Spring One presentation on Atomist . @atomist @springboot @s1p

Software Delivery Needs a Framework: Lessons from Spring

We have frameworks for developing better software faster. Why do the tools for delivering software not afford that same level of efficiency? Code is a powerf...

www.youtube.com

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Rod Johnson

@springrod

6 years

Congratulations to my friends at @pivotal on a great IPO! Well deserved, and good to see @springframework in good hands. Sorry I missed @cloudfoundry Summit but @atomist was there and I hear my colleagues had great conversations @springboot

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Rod Johnson

@springrod

8 years

And now, the first cut of our @atomist generator for @springboot projects: . Scroll down to "Create Project" button

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Rod Johnson

@springrod

6 years

Important point. Related to the way in which Silicon Valley people overvalue what *they* care about and undervalue what corporate customers care about

Lukas Eder

@lukaseder

6 years

I really wish more people from "the enterprise" would blog. This entrepreneurial/startup blog bias is giving us a wrong picture of reality

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Rod Johnson

@springrod

6 years

Never leave an IDE template to complete methods to return void, null or undefined: Make them throw an exception or error. Will fail fast and explicably and give you free linking to the place you need to fix.

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Rod Johnson

@springrod

5 years

@starbuxman @rhatr @chuhnk @wattersjames Focus on real problems. Stronger, more complete vision than competitors--an integrated solution. (Initially, the only project willing to defy the J2EE marketing machine. Now vision for cloud.) Good docs. Great team. Respectful, professional culture.Ability to pay core developers.

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Rod Johnson

@springrod

6 years

Spring is bigger than ever, and now plays a key role in an IPO. Just over 15 years of amazing open source work from the Spring team after the initial code drop. Well deserved! @springframework @pivotal

Dan Primack

@danprimack

6 years

Dell spinout Pivotal sets IPO terms

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Rod Johnson

@springrod

7 years

“Move Fast and Don’t Break Things”: My blog on Atomist bringing correlated info and actions into Slack #springboot

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Rod Johnson

@springrod

8 years

New blog on using Atomist editors to evolve projects: @atomist @springboot @neo4j #SpringFramework

Evolving Projects Using Atomist Editors

In my last post, I discussed a new approach to code generation, introducing the idea of “editors” as transforms on a running project.

medium.com

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Rod Johnson

@springrod

6 years

Much more than a sketch. 30,000 lines of code

Grygoriy Gonchar 🇺🇦

@ggonchar

6 years

Did you know that @springframework started as a sketch from the book “J2EE Design and Development”? @springjuergen #GOTOber

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Rod Johnson

@springrod

6 years

@jacek_bilski @springframework @INNOQ Unit tests shouldn't use Spring. Period. Spring's integration testing support is a valuable alternative to a full deployment, but should only be used when you NEED to test real wired services, database interactions etc

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Rod Johnson

@springrod

8 years

I really enjoy coding

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Rod Johnson

@springrod

6 years

While software is eating the world, developers are eating software. We've barely scratched the surface with #DevOps --we can do much more to apply our engineering & coding skills to our own discipline.

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Rod Johnson

@springrod

7 years

How we're using #typescript , #GraphQL and Slack at @atomist to enable development automation: @SlackHQ

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Rod Johnson

@springrod

6 years

On NYSE trading floor for @elastic IPO with old friends and comrades in arms @stevenschuurman and @nickw249 . Amazing day. Great team, great technology. Looking forward to even greater things! @kimchy

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Rod Johnson

@springrod

6 years

Code is greater than fear: Why we developers should celebrate Microsoft acquiring GitHub -

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Rod Johnson

@springrod

6 years

Current status: deep into TypeScript coding while listening to Nick Cave. Very happy.

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Rod Johnson

@springrod

7 years

Looking forward to attending #SpringOne next week. See you at our @atomist happy hour! @springboot

Atomist

@atomist

7 years

Join us at #SpringOne next week! Talk with @springrod @cdupuis and our team at Tuesday happy hour.

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Rod Johnson

@springrod

7 years

#TypeScript & #Kotlin are important languages.I had fun with them making a factory for Spring 5 apps. @springcentral

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Rod Johnson

@springrod

6 years

Funny, but also scary. A real Halloween tweet.

李赛博 (seb)

@khepin

6 years

If relational databases were invented today

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Rod Johnson

@springrod

5 years

@brunoborges @ThePracticalDev Good question. XML is annoyingly verbose. But it's more robust syntactically and has schema support. In practice, both are/have been greatly overused. Programming badly in YAML is currently out of control.

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Rod Johnson

@springrod

8 years

TypeScript is SO much better than JavaScript. Yet compatible. Nice job #TypeScript

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Rod Johnson

@springrod

8 years

Always amusing when "Why isn't this working?" becomes "Why did that ever work?" once one starts digging…

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Rod Johnson

@springrod

6 years

"this" is such a disaster in JavaScript even #TypeScript can't fix it

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Rod Johnson

@springrod

6 years

We think 3 things are key: an event hub vs many pipelines so orgs can express org policy; a rich model spanning code and correlated events around it, like builds and deployments; and a productive API in a full featured programming language, not YAML and Bash

Richard Seroter

@rseroter

6 years

This @monkchips chat with @springrod and @jryanday offers a really helpful perspective on what modern (next gen?) continuous delivery should look like. I really need to play with @atomist .

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Rod Johnson

@springrod

5 years

If I were at Hogwarts, CSS would be a branch of magic I'd try to avoid

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Rod Johnson

@springrod

6 years

Wow. Just learnt that Harper Lee 'received a gift of a year's wages from friends with a note: "You have one year off from your job to write whatever you please. Merry Christmas"'. The result was "To Kill a Mockingbird". What an amazing and important gift.

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Rod Johnson

@springrod

5 years

#DevOps tools need to work per org, not per repo. Having one build pipeline per repo doesn't work in today's world of project proliferation. Pipeline duplication is technical debt, and safely making consistent changes across many projects becomes difficult or impossible.

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Rod Johnson

@springrod

8 years

Sometimes a different algorithm or model can help solve a blocking coding problem. Sometimes, loud Bon Jovi can be equally effective.

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Rod Johnson

@springrod

6 years

@headius @cra We owe quite a bit to Maven. Although not everyone learnt the lesson.

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Rod Johnson

@springrod

6 years

I love this post from @hans_d on "Quantifying the Cost of Builds" - . It's always eye opening to look at where time/cost goes in software delivery. We should do more of that as an industry. #DevOps

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Rod Johnson

@springrod

7 years

Just discovered Spring MVC optional path params via Optional<String> and multiple paths. Nice. @springcentral @springboot @springframework

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Rod Johnson

@springrod

8 years

New blog about @atomist "executors" and the bigger picture: #chatops , understanding and automation across projects.

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Rod Johnson

@springrod

10 years

“ @h3nk3 : Great summary of the Scala type system http://t.co/ItZ4tkCHIt” - Very readable: Nice job

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Rod Johnson

@springrod

6 years

Yes. As developers grow more powerful, key decisions move left. Two of many business proof points: Microsoft's recognition of GitHub's importance; Pivotal using Spring to drive Cloud Foundry. The delivery flow is highly strategic, and fertile ground for innovation

Krish Subramanian

@krishnan

6 years

The next iteration of platform wars will happen on the delivery pipeline #discuss

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Rod Johnson

@springrod

7 years

Our new Atomist website is live: Lays out our Development Automation vision, also with overhauled docs. @atomist @typescriptlang

David Dooling

@ddgenome

7 years

Launching 🚀 with new web site and docs: ramp your #development #productivity with ease, focus on coding and let @atomist do the rest!

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Rod Johnson

@springrod

7 years

No more copy/paste: A better way to create projects with @atomist and #slack .

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Rod Johnson

@springrod

6 years

Automatically deploy Spring Boot applications to Kubernetes without all the YAML and all the duplication. Exciting blog post by @cdupuis shows how Atomist team policies can transform CD @atomist @springboot @kubernetesio #continuousdelivery

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Rod Johnson

@springrod

6 years

I know tech people, in particular, can be down on MBAs, but this seems excessive

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Rod Johnson

@springrod

6 years

Had a great meeting and lunch today with my personal and professional friend @emileifrem . Lovely to see him. Huge respect for his leadership at @neo4j since we met in 2010. Great product; great culture; great people. The character of a CEO matters.

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Rod Johnson

@springrod

9 years

Wonderful cartoon in Le Monde, drawing on Delacroix's classic "Liberty Leading the People." #JeSuisCharlie http://t.co/wIAZnspHZn

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Rod Johnson

@springrod

6 years

Great insights from Google experience into how to make static analysis useful, including integration into workflow, making warnings actionable, and an extensible platform (Tricorder). It's how such technology is consumed that makes it useful in practice.

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