Jonas Bonér

Present.
Entrepreneur.
Hacker.
Public Speaker.
Powder Skier.
Perpetual Learner.
Jazz Fanatic.
Wannabee Musician.

All Posts

2018

Foreword—Reactive Application Development

This is the foreword I wrote for Duncan DeVore’s and Sean Walsh’s great book on Reactive Application Development.

2017

Foreword—Reactive Design Patterns

This is the foreword I wrote for Roland Kuhn’s excellent book on Reactive Design Patterns.

2016

Foreword—Functional and Reactive Domain Modeling

This is the foreword I wrote for Debasish Ghosh’s great book on Functional and Reactive Domain Modeling.

Foreword—Reactive Messaging Patterns with the Actor Model

This is the foreword I wrote for Vaughn Vernon’s great book on Reactive Messaging Patterns with the Actor Model.

Foreword—Developing Reactive Microservices

This is the foreword I wrote for Markus Eisele’s great book on Developing Reactive Microservices.

Foreword—Programming Scala

This is the foreword I wrote for Dean Wampler’s—now classic—book on Programming Scala from 2009.

bla bla microservices bla bla

This is a the transcript of my keynote at O’Reilly Software Architecture Conference in New York in April 2016.

2013

Reactive Manifesto 1.0

Defining the blueprint for future applications that are event-driven, scalable, resilient and interactive.

2010

Introducing Akka - Simpler Scalability, Fault-Tolerance, Concurrency & Remoting through Actors

p(meta). 4 Jan 2010

2009

Asynchronous Event Sourcing using Actors

p(meta). 12 Feb 2009 h1. Introduction There has been some discussions lately about Event Sourcing. For example, Greg Young "recently discussed":http://...

Blogging Like a Hacker using Git and Jekyll

p(meta). 7 Jan 2009

2008

Real-World Scala: Fault-tolerant Concurrent Asynchronous Components

Introduction

Real-World Scala: Managing Cross-Cutting Concerns using Mixin Composition and AOP

In a previous post I showed you how you could use mixin composition and self type annotations to enable Dependency Injection (DI). Mixin composition is an ex...

Reward Failure

Alex Miller has written a very important post on the importance of failure, putting, what has been one of my guiding principles in leadership and working env...

Real-World Scala: Dependency Injection (DI)

Posted: 2008-10-06 In this second post in the Real-World Scala series I am going to discuss how to implement/achieve Depenency Injection (DI) in Scala. Sc...

Real-World Scala: Introduction

The last nine months I have been running my own business together with some friends (Triental AB). We are building a product suite for private banking and we...

Erlang-style Supervisor Module for Scala Actors

In this post I will explain how you can build fault-tolerant systems using Scala Actors by arranging them in Supervisor hierarchies using a library for Scala...

AOP-style Mixin Composition Stacks in Scala

Scala is one those great languages that is scalable. With scalable I mean that it is the language that grows with the user, that it makes simple things easy ...

Clustering Scala Actors with Terracotta

Introduction A month ago I wrote an introductory post about Scala Actors: HotSwap Code using Scala and Actors. For you who don't know what it is I don't w...

2007

HotSwap Code using Scala and Actors

Update: In this article I am showing an even more powerful way of doing hotswap in Scala. ---- In this post I will show you how you can do code hotswap i...

The Terracotta Book

The last month I have been very busy writing on The Definitive Guide to Terracotta. It is a collaborative effort from the Terracotta team each one writing...

Interview with Joe Armstrong on Erlang and more...

I had the pleasure of attending Joe Armstrong's fantastic presentation at JAOO some weeks ago. It was by far the best talk at the whole conference, both in t...

Clojure: a Lisp-dialect for the JVM - with focus on Functional and Concurrent Programming

Yesterday, Rich Hickey announced the birth of Clojure - a lisp dialect for the JVM. After just a brief look, Clojure is perhaps the most interesting langu...

Article: Distributed Web Continuations with RIFE and Terracotta

My and Geert Bevin's article about how to cluster RIFE's Web Continuations with Terracotta has just been published on Artima. Here is the abstract: In ...

The Power of Sockets and Dynamic Proxies

I was going through some of the older parts of my darcs repository the other day when I stumbled upon a pretty neat and powerful little remoting library that...

Love What You Do

I was in Rome, Italy some weeks ago. After strolling around in the old town for a couple hours I felt the need to grab a bite. So I stopped at a cafÃ©, sat d...

Love What You Do

July 04, 2007 I was in Rome, Italy some weeks ago. After strolling around in the old town for a couple hours I felt the need to grab a bite. So I stopped at...

How To Keep Your Creative Flow

I recently saw an interview with Jan Guillou, one of the most successful and creative authors in Sweden. He had some interesting thoughts about creativity th...

How To Keep Your Creative Flow

June 28, 2007 I recently saw an interview with the Swedish author Jan Guillou. He had some interesting thoughts about creativity that I think applies to all...

Invert Your Database Caching Dependency for Extreme Scalability

Today most applications rely on a relational database (RDBMS) as its primary Service of Record (SoR) -- the master copy of the data. But in order to minimize...

Terracotta War Story:How We Clustered RIFE

This is the story how Geert Bevin and I clustered RIFE with Terracotta. The purpose of this blog post is to give an example of how JVM-level clustering of...

Building Stateful, Scalable and Highly-Available Web Applications with Spring Web Flow and Open Terracotta

My and Eugene's article on how to use Spring Web Flow together with Open Terracotta to build conversational, scalable and highly-available web applications h...

Clustering the JVM using AOP: the Inner Workings of Terracotta DSO

Our paper for AOSD 2007 has been published. It is titled 'Clustering the Java Virtual Machine using Aspect-Oriented Programming' and is a thorough and pragma...

Clustering JRuby with Terracotta

Yesterday I was spending some time thinking about the possibilities to cluster applications written in "JRuby":http://jruby.codehaus.org/ with "Terracotta":h...

How to Build a POJO-based Data Grid using Terracotta

In this article, I will show you step by step how you can build a reusable POJO-based Data Grid with nothing but standard JDK *5 and then make it distributed...

...and the Award for Best Programming Font Goes To...

ProFont. It is the best programming font I have seen and I use it all the time (for most stuff - not just programming), both on Windows and Mac - even thou...

In Search For the Ultimate Cross-Platform Backup Solution

The last year I have been spending time finding the “ultimate” backup solution for Mac. I also have the requirement that it had to work equally good on Windo...

You're Smarter Than They Think

Seth Godin has written yet an amazing and inspirational piece on how to be remarkable. It is a short write-up of some of the ideas he has been talking and wr...

2006

Back From Serbia

I just got back from a small JUG roadshow in Serbia. I did two 2 1/2 hours talk in two days, the first one in Novi Sad and the second one in Belgrade. Both t...

How To Implement a Distributed CommonJ WorkManager

In this article I will show you how to implement a distributed version of the CommonJ WorkManager specification using Terracotta for Spring. This article is ...

The Art of Minimalistic Design

Minimalism: "...where the work is stripped down to its most fundamental features and core self expression". The world needs more minimalism. Sty...

Domain-Driven Pointcut Design

What is a pointcut language? Let's start with some terminology and definitions. A pointcut language can be seen as a Domain Specific Language (DSL) for ...

The Optimized Null Check Pattern

A friend of mine showed me The Optimized Null Check Pattern (TM) yesterday (found in a piece of production code): public static boolean isNull(Object obj)...

Books That Makes You Think

After my rant about the lack of computer literature that: ...makes you think and challenge the way you work. I thought that I should provide a list of book...

Welcome Noah

Saturday 17:45 PST, little Noah decided that it was time to come out and meet the family, seven weeks early, but very welcomed. He will have to stay in the i...

What Happened To Computer Literature That Makes You Think And Challenge The Way You Work?

I like books. I enjoy spending time in libraries and bookstores, I can spend hours just browsing around and when my wife is getting bored (usually after 10...

2005

Highlights 2005

2005 has been a good year, both personally and professionally. Here is a summary of some of the highlights (in chronological order): Family trip to Vie...

Think AOP Is Dead? - Time To Reconsider...

If you thought AOP was dead or at least dying, then it is time to reconsider. AOP is not dead. Not even close. After a perhaps healthy backlash, that took...

AspectJ 5 Final Is Shipped

AspectJ 5 final is finally shipped. This means that the merger with AspectWerkz is complete and that the most important chapter in the history of AOP has b...

Java Killed The Innovation Of Computer Languages

I had a very interesting discussion with Chris Richardson at the Spring Experience conference last week. Chris is an old Lisp hacker and used to write Lisp c...

Stay Out of Jar Hell with Jar Jar Links

Jar Jar Links have been part of my Java toolkit ever since we started using it in AspectWerkz a couple of years ago. It is one of these little gems that de...

Commons Logging Has To Die

Unfortunately, I guess it is to late to kill the beast... But I am writing this post anyway, since it keeps on causing harm and since more enlightment arou...

Learning From The Web

Adam Bosworth has written an interesting article about what we can (or have to) learn from The Web. He is talking about how it has teached us how to manag...

HotSwap Is A Dead End Road

There has been a lot of discussions about the need for more dynamicity in Java, including the need to support scripting languages. Most are around the sugg...

Introducing HyperBeans—multi-dimensional POJOs

Introduction This article is introducing HyperBeans, a proposal for a framework for Symmetric Aspect-Oriented Software Development in plain Java (i.e....

AOP Roadshow In Japan

Japan Tour

util.concurrent on steroids

Steve has written a nice article on how you can coordinate threads in a distributed application, transparently, and with very little effort.

JVM support for AOP - part 2

The second part of our article series about JRockit JVM support for AOP is now published.

Use Total Ordering of Objects to Avoid Deadlocks

Writing multi-threaded applications in Java can as you know be quite tricky, and if not done correctly, one can easily end up with deadlock situations. Fo...

Semantics for a Synchronized Block Join Point

As I mentioned in my previous blog entry, the synchronized block is currently not a supported join point in AspectJ 5 (or in any other AOP framework): C...

DSO: transparent clustering enabled through AOP

Terracotta just recently launched a product (DSO) for clustering POJOs in a completely transparent way. What I find interesting in this product is not mainl...

JVM support for AOP (technical session at JavaOne 2005)

If you're interested in knowing more about what the future holds for AOP, then you should come to the technical session TS-7659 (titled "Runtime Aspects With...

Nordev 2005: Rickard on real world use-cases for AOP etc.

I just got back from the Nordic Software Developer Summit (Nordev) 2005. Strange enough, this is the first good developer conference that we have had in Swe...

Interception Done Right

One of the new features in the AspectWerkz 2 architecture is that it comes with a full-blown interception framework that allows per instance programmatic d...

2004

Aspect hot deployment in practice: Implementing a JMX monitoring aspect

One of the new features in the AspectWerkz 2 architecture is the ability to deploy and undeploy aspects at runtime, e.g. to do "hot" deployment and undeplo...

CGLIB with Native Support for AspectWerkz

The idea After implementing the AW Proxy extension to AspectWerkz I figured, why not hook into the most widely used proxy implementation out there: cglib a...

AWProxy: Proxy on steroids

Summary Proxies are an important piece in the J2EE puzzle. Since it offers a non-intrusive an more transparent way of weaving in advice/interceptors. Howe...

Spring and AspectWerkz: A Happy Marriage v2

The AspectWerkz 2 architecture has been designed to be an Extensible Aspect Container, which can deploy and run arbitrary aspects. You can read more about ...

Spring and AspectWerkz - A Happy Marriage

The Spring Framework is a very powerful library for J2EE development. It comes with an AOP implementation (based on proxies) that is in many cases sufficient...

Tutorial series on how to get started with AspectWerkz

Yesterday evening I put together a series of two introductory tutorials on AspectWerkz (a third is on its way). Tutorial one: Hello World. Tutorial two: H...

BEA sponsors AspectWerkz

The AspectWerkz project is since a a month ago sponsored by BEA Systems. Both Alexandre and I, the founders and primary contributors to AspectWerkz, are fu...

AspectWerkz NextGen

Today we released the 0.10 Release Candidate 1 of AspectWerkz. Which forms the foundation for the next generation of AspectWerkz. AspectWerkz has gone...

Presenting on dynamic AOP @ JavaOne

I was lucky and our submission to JavaOne was accepted. This means that Alex and I will do a presentation on "Dynamic Aspect-Oriented Programming in J2EE e...

Doing a tutorial on AOP in enterprise applications at AOSD 2004

Alex and I will do a half-day tutorial on AspectWerkz at AOSD 2004. The tutorial will be an introduction to AOP/AOSD and AspectWerkz and to how it can be us...