JVM
Dynamic SFTP Connection Factory for Spring Integration
December 20th, 2017
Dynamic SFTP Connection Factory for Spring Integration
Chris Tosspon
All Posts > JVM
JVM
Serializing Groovy Traits with Jackson
December 14th, 2017
A simple example of serializing objects with Groovy traits using the Jackson library.
Chris Tosspon
JVM
Passing Command Line Arguments to a Spring Boot Application via a bootRun Task in Gradle
December 7th, 2017
Example of how to pass command line arguments to a Spring Boot Application via the bootRun task in Gradle.
Rob Boler
JVM
Missing Codecs in MongoDB
November 28th, 2017
What to do when you get org.bson.codecs.configuration.CodecConfigurationException: cant find a codec for class java.math.BigDecimal.
Mike Hostetler
JVM
Spring Webflux - Functional Endpoints
November 16th, 2017
This post will look at how to set up a simple router and get global error handling in place using the new webflux.fn routing available in Spring 5.
Iain Coffield
JVM
Functional Testing With Embedded Kafka
October 25th, 2017
Functional Testing With Embedded Kafka in a Spring Boot Application using a Gradle task.
Brendon Anderson
JVM
Aggregate Services into a Single Swagger
September 28th, 2017
Aggregate Services into a Single Swagger
Matt Schroeder
JVM
Masking sensitive data in Log4j 2
September 26th, 2017
Automatically mask sensitive fields in Log4j 2 to protect your users privacy and comply with PCI standards.
Igor Shults
JVM
Real Time Chat Application with Kotlin and Firebase
September 6th, 2017
Real Time Chat Application with Kotlin and Firebase
Joseph Roskopf
JVM
Unit Testing Camel Routes with Spock
August 22nd, 2017
Unit testing Camel Routes with the Spock testing framework in a Spring Boot application.
Chris Tosspon
JVM
Implement a GraphQL Endpoint in a Groovy App
July 6th, 2017
Implement a GraphQL Endpoint in a Groovy App
Matt Schroeder
JVM
Exciting things in Spring Boot 2
June 27th, 2017
I looked at the release notes for Spring Boot 2.0.0.M1 not expecting a lot of exciting changes but was surprised by some compelling things. There is the usual “deprecated classes are removed” and “Dependency X is upgraded” but there are some more…
Mike Hostetler
JVM
Database Migrations in Flyway
June 21st, 2017
Database migration in the Java-world with Flyway
Mike Hostetler
JVM
Using MariaDB4j for a Spring Boot Embedded Database
June 19th, 2017
MariaDB4j is an embedded Java wrapper for spinning up a MariaDB instance for local development or continuous integration testing purposes.
Jeff Sheets
JVM
Spring Integration Testing with Spock Mocks
April 18th, 2017
How to inject Spock mocks into the Spring Context during integration tests.
Derek Eskens
JVM
Camel is closing JPA sessions
March 9th, 2017
Apache Camel closes the JPA session after a step on the route. This has ideas on how to fix it.
Mike Hostetler
JVM
Implementing a Google DataFlow Pipeline
October 18th, 2016
Implementing a Google DataFlow Pipeline
Tim Drahn
JVM
Analyzing Kafka data streams with Spark
October 13th, 2016
An example Java 8 Spark application describes exactly once processing and analysis of a Kafka topic serving a (simulated) real time 911 call data stream.
Object Partners
JVM
Using Flyway for database migrations in Ratpack apps
October 7th, 2016
Using Flyway for database migrations in Ratpack apps
Object Partners
JVM
Getting more properties through Spring HATEOAS
September 16th, 2016
Using the Spring HATEOAS API to expose more properties from the object
Mike Hostetler
JVM
Monitoring Grails Applications The Easy Way
August 30th, 2016
Using out of the box features along with a small amount of coding, you can extract a lot of metrics from your Grails applications
Eric Foster-Johnson
JVM
Enhancements to Spring RestTemplate
August 16th, 2016
Adding Base URL, Basic Auth and URL Parameters Enhancements to Spring RestTemplate
Paul Ferguson
JVM
JUnit 5 with Spring Boot (plus Kotlin)
July 26th, 2016
An overview of new features in JUnit 5 and integrating it into a Spring Boot application written in Kotlin
Mike Plummer
JVM
Using Apache Camel in Grails 3
June 7th, 2016
Grails 2 has a plugin for Apache Camel called Routing but that plugin hasn’t been upgraded to Grails 3 yet. Luckily, Grails 3 is just Spring Boot so we can use the Camel Spring Boot component … with some caveats. After you add the Camel…
Mike Hostetler
JVM
Graylog with Spring Boot: Open source log and event analysis
May 4th, 2016
Spring Boot application that sets up a self-contained Graylog instance for event archival and analysis.
Mike Plummer
JVM
Resolving Codenarc Compilation Warnings
March 16th, 2016
To resolve compilation warnings when using Codenarc 0.19+, look at the enhanced rules.
Object Partners
JVM
Using secondary datasources in Grails 3
March 9th, 2016
Something changed in Grails 3 and how datasources are configured. This post will explain what you need to do.
Mike Hostetler
JVM
Unit Testing URI-Based Grails Filters
March 1st, 2016
A workaround for the inability to mock URI-based filters in Grails.
Igor Shults
JVM
An Introduction to Kotlin
February 23rd, 2016
An overview of the Kotlin programming language which keeps the good parts of Java while reducing boilerplate to promote better Object-Oriented code.
Mike Plummer
JVM
Mapping JPA entities to external REST resources in spring-data-rest
February 18th, 2016
This Spring Boot example shows how you can map JPA entities to REST endpoints and embed them in the HATEOAS output via spring-data-rest and annotations.
Object Partners
JVM
Automatically JUnit Test DTO and Transfer Objects
February 16th, 2016
Automatically JUnit Test DTO and Transfer Objects
Jeff Torson
JVM
Building Continuous Delivery: Rock-solid builds with Gradle
February 1st, 2016
Continuous delivery is the very first principle behind the Agile Manifesto, and yet it continues to plague software development teams. In this talk, David Norton will give a brief overview of continuous delivery practices and then focus on the area…
David Norton
JVM
Using Groovy Based Spring Configuration
January 12th, 2016
A guide to using Groovy for Spring configuration both JavaConfig and Grails style and adding Groovy configuration to web.xml using ContextLoaderListener.
Object Partners
JVM
Changing the embedded server in Grails 3
January 7th, 2016
How to change the server from Tomcat to something else in Grails 3s fat jar
Mike Hostetler
JVM
Flirting with disaster: A dangerous use of Groovys dynamic method invocation
January 5th, 2016
An example of when not to use Groovys dynamic method invocation feature. Injection attack vulnerability.
Object Partners
JVM
Distributed Grails with Docker and Hazelcast
December 28th, 2015
Example of clustering Grails using Docker Compose and distributing data and processing within the cluster using Hazelcast.
Mike Plummer
JVM
Configure Jenkins to dynamically create a database for your Grails tests
December 22nd, 2015
Test pollution can be frustrating to look into, especially when the failures are sporadic. Running your tests on the same database may also lead to problems.
Igor Shults
JVM
Spring Boot With (Pac4J) OAuth
December 9th, 2015
Spring Boot sample application using Pac4J OAuth providers and Spring Security.
Aaron Hanson
JVM
Avoiding a common spring annotation configuration mistake
December 7th, 2015
Making sure spring singletons are indeed singletons.
Neil Buesing
JVM
Asynchronous Programming in Grails 3
October 22nd, 2015
Grails has had support for asynchronous programming for some time now but it seems to have become more well-defined in Grails 3. It has Promises, Events in GORM
Mike Hostetler
JVM
Tweaking Column Types in Grails
September 29th, 2015
Changing Hibernate mappings in a Grails application
Mike Hostetler
JVM
Groovy gotcha: Passing zero arguments to a method that expects one
September 2nd, 2015
Groovy will compile just fine in certain scenarios where no arguments are passed to a method that expects one.
Igor Shults
JVM
Getting Grails Database Connections to Reconnect
August 19th, 2015
Getting Grails Database Connections to Reconnect
Mike Hostetler
JVM
Sharing Grails HAL and JSON Renderers
August 13th, 2015
Details a method to share Grails object marshallers across XML, JSON and HAL flavors of web services.
Patrick Double
JVM
Retrofit: API Integration Made Easy
August 4th, 2015
A quick introduction to Retrofit. Well cover the basics for how to convert any API into a type-safe Java interface using @GET, @POST, @QUERY, and @PARAM.
Darin Drobinski
JVM
Creating a Mocked RESTful Sandbox Server using Groovy
June 25th, 2015
Create a mocked RESTful web service using Groovy, which allows users to test out the service without changing any data.
Object Partners
JVM
Waiting for a Redirect Chain to Settle using Selenium WebDriver
June 4th, 2015
Some interactions with the browser can be tricky. This post describes a way to wait for the document to settle before continuing.
Patrick Double
JVM
ETags and Spring Data REST
June 2nd, 2015
A discussion of ETag usefulness in APIs and an example project created from Spring Data RESTs built-in ETag support.
Object Partners
JVM
Grails, PostgreSQL 9.4 and JSONB
May 26th, 2015
On a recent grails project using postgreSQL 9.4 that took advantage of the jsonb datatype, we ran into an issue mapping data back and forth to our domain
Object Partners
JVM
List of Groovy versions for each version of Grails
May 14th, 2015
A compiled list of which Groovy version goes with a version of Grails.
Igor Shults
JVM
My First Ratpack App: What I Learned
May 12th, 2015
I learned a lot building my first Ratpack application. I hope this post will help you on your way to building your first Ratpack application.
Brendon Anderson
JVM
Intelligent microservice metrics with Spring Boot and Statsd
May 7th, 2015
Intelligent microservice metrics with Spring Boot, Dropwizard, and Statsd
Object Partners
JVM
Deploying Grails 3 Applications (and other fat jars) to Heroku
April 23rd, 2015
For deploying to Heroku, outlines a method using Gradle to work-around the 15 minute build timeout still leverage the advantages of building from source.
Patrick Double
JVM
Interfacing Groovy (and Java) with Native Libraries
April 21st, 2015
As much as we hate to admit it, from time to time there are benefits to languages that operate outside the JVM. Whether its interfacing with hardware or simply
Mike Plummer
JVM
Easily get GORM max size constraints
March 11th, 2015
Easily get GORM max size constraints
Igor Shults
JVM
Another Method for Admin screens with Grails
March 6th, 2015
I came from a background of making sites with Django and after I starting going head-first into Grails, one of the things I missed was a really good and easy to make an admin section. You know — something that “just works” to do some basic CRUD…
Mike Hostetler
JVM
Groovy Closures Create Tidy, Flexible Services
February 3rd, 2015
Discussing Groovy Closures and why they are useful.
Object Partners
JVM
Keep Calm & Groovy On!
January 23rd, 2015
Grails and Groovy will continue to be part of our toolkit and part of our client solutions in the future.
Object Partners
JVM
Reset Your H2 Database For A Clean State Between Functional Tests
January 13th, 2015
For automated tests, a solution to reset your H2 database between each test.
David Norton
JVM
Grails cdn-asset-pipeline Plugin for Improving Web Site Performance
January 6th, 2015
Easily push your Grails assets to a S3 backed CDN with the cdn-asset-pipeline.
Patrick Double
JVM
Copying multiple directories in a single Gradle task with up-to-date checking
December 11th, 2014
How to write a single Gradle task to copy multiple directories and still use up-to-date checking.
Object Partners
JVM
Case-insensitive criteria ordering on child properties
December 3rd, 2014
A workaround for a couple of Grails 2.x bugs and changes that have made it difficult to sort criteria case-insensitively when using child/nested properties.
Igor Shults
JVM
Vert.x Fat Jar Deployments
November 25th, 2014
Fat jar deployments in Vert.x can simplify the delivery of your software. One drawback is limited options for module dependencies, which this post will address.
Object Partners
JVM
UDP Server with Spring Boot and Reactor
November 18th, 2014
A tutorial and accompanying project for creating a simple UDP server with Spring Boot and Reactor.
Object Partners
JVM
StringTemplates in Groovy
November 11th, 2014
Using the StringTemplateEngine in Groovy -- troubleshooting, gotchas, and everything else.
Mike Hostetler
JVM
Experiences with Publishing a Grails Plugin
October 29th, 2014
Blog on creating a Grails plugin to implement HTTP compression.
Patrick Double
JVM
Logging REST Exceptions with Spring
October 21st, 2014
Logging REST Exceptions with Spring using ResponseEntityExceptionHandler
Jeff Sheets
JVM
GR8Conf US Recap: Why Your Company Should Adopt Groovy!
August 25th, 2014
At the 2014 GR8Conf US, Scott Hickey from Object Partners and Jim McGill from Mutual of Omaha spoke about a large mission-critical Groovy application.
Object Partners
JVM
Static website generation in Groovy
July 29th, 2014
Grain is a static site generator written in Groovy
Mike Hostetler
JVM
Grails API Functional Testing
July 15th, 2014
Examples of testing Grails APIs with Grails Rest Client Builder, Groovy Http Builder, and Apache Http Client
Object Partners
JVM
Groovys .with() and multiple assignment
July 9th, 2014
Groovy has a limitation that restricts multiple assignment to simple variables. However, by using with(), we may be able to work around that.
Igor Shults
JVM
Gradle Summit 2014 Recap
June 18th, 2014
Review of material and presentations from Gradle Summit 2014, Santa Clara, California.
Object Partners
JVM
Inline initialization of Java Maps
June 5th, 2014
Inline initialization of Java Maps is never pretty, this solution provides a type safe and efficient way to do so.
Neil Buesing
JVM
Run Grails Commands on Heroku
May 22nd, 2014
Instructions on how to run Grails commands on Heroku using an example of how to run Grails migrations on Heroku
Brandon Fish
JVM
Configuring Spring Security CAS Providers with Java Config
May 20th, 2014
It can take a little digging to move Spring Security + CAS XML configuration to Java. Here is the Java config equivalent to the SS documentations example.
Object Partners
JVM
Automatically test your dirty Grails classes
May 15th, 2014
A script to grab the list of modified files from git, parse their filenames, and pass those names for testing in grails test-app.
Igor Shults
JVM
Grails R14 Error (Memory quota exceeded) on Heroku
May 13th, 2014
Explains how to resolve the Grails R14 Error when it is encountered on Heroku.
Brandon Fish
JVM
Reuse your Gradle logic across the enterprise
April 24th, 2014
Gradle build code will sometimes need to be reused across the enterprise. Here are a few ways to do so.
David Norton
JVM
Tracking Hibernate statistics across Grails actions
April 22nd, 2014
Using controller filters to configure tracking and logging of Hibernate statistics in HTTP requests.
Igor Shults
JVM
Spock Mock Cheatsheet
April 8th, 2014
Summary of unit test mocking capabilites and syntax of Spock test framework
Object Partners
JVM
A Groovy Time with UPnP and WeMo
March 25th, 2014
How to control a WeMo device using Groovy
Brendon Anderson
JVM
GUM Recap - Enterprise Grails with Spring Batch
February 13th, 2014
Recap of John Engelmans presentation at the January 2014 Groovy Users of Minnesota (GUM) meeting on utilizing Spring Batch with Grails applications.
Object Partners
JVM
Memoization in Groovy
January 28th, 2014
The performance of expensive calculations in Groovy can be increased with the use of memoization.
Brendon Anderson
JVM
Simpler Stored Procedures with Groovy
January 24th, 2014
Using Groovy almost makes calling Stored Procedures an enjoyable process. See how to process Sql Output Parameters and ResultSets easily in Groovy
Jeff Sheets
JVM
Grails Config Values Per Tomcat Host
December 11th, 2013
An example of using JNDI to provide a Grails application config values per Tomcat Host.
Object Partners
JVM
Guicing up Dropwizard
November 19th, 2013
Implement dependency injection in Dropwizard with Google Guice.
Object Partners
JVM
Parallel Grails Functional Tests with Geb and Gradle
November 14th, 2013
Speed up your Grails functional tests by running them in parallel with Gradle
Object Partners
JVM
Set up a pseudo test suite in Grails while doing a major upgrade
November 12th, 2013
Describes a technique for setting up a temporary test suite while upgrading a Grails application.
Object Partners
JVM
Testing GWT with GwtMockito
November 7th, 2013
How to write tests for GWT using GwtMockito. GwtMockito makes it possible for you to write Mockito unit tests for your GWT code; these tests execute a lot faster than GWTTestCase or PowerMockito tests, making your build times more scalable.
Neil Buesing
JVM
Testing Grails With a Travis Build Matrix
October 29th, 2013
An example Grails build configuration for creating a Travis build matrix
Brandon Fish
JVM
A Standalone Service Tier with Spring
October 24th, 2013
Building a Standalone Service Tier with Spring Integration and RabbitMQ
Object Partners
JVM
Using the Groovy Console as a Java Production Support Tool
October 22nd, 2013
As an advanced debugging technique, the Groovy Console is a great tool for interactively working with Java or Groovy objects serialized from running code.
Object Partners
JVM
What I wish I knew about Grails before my first Grails Project
October 15th, 2013
Some thoughts and ideas on how I would go about my first Grails project, if I had the chance to start it over.
Neil Buesing
JVM
Reverse-Engineer Old Databases With Grails
October 10th, 2013
Create Grails domain classes from your legacy database tables.
Eric Foster-Johnson
JVM
Building Web Apps in Ratpack
October 9th, 2013
How to build, package, and deploy applications with Ratpack
Object Partners
JVM
Rollback Multiple Datasources in Grails Integration Tests
September 24th, 2013
Simple setup for Grails integration tests to rollback from multiple databases when using the Datasources plugin or 2.3 built-in support.
Jeff Sheets
JVM
The Benefits of Using assertThat over other Assert Methods in Unit Tests
September 18th, 2013
The released of JUnit 4.4 added a new method assertThat which is a much improved way to write assertions vs the old assert methods.
Object Partners
JVM
Type Safe Page Objects with Geb
September 12th, 2013
How to get the benefits of type-safe page objects with the Geb functional testing framework
Object Partners
JVM
Optional Typing in Groovy
August 19th, 2013
Discussion of Groovys Optional Typing system with benefits and drawbacks outlined.
Object Partners
JVM
Customizing MOP in Groovy
July 30th, 2013
Demonstrates using the Groovy Meta Object Protocol framework to build a custom MetaClass implementation.
Object Partners
JVM
Creating self-contained, executable Jars with Gradle and Shadow
July 16th, 2013
Describes how to use Gradle and its Shadow plugin to create a self contained, executable Jar. No more classpath management.
Object Partners
JVM
Custom Authentication with the Grails Spring Security Core Plugin
July 11th, 2013
A tutorial with backing github project detailing how to build custom authentication solutions with the Grails Spring Security Core plugin.
Object Partners
JVM
Configuring Quartz 2 with Spring in clustered mode
July 9th, 2013
Run Quartz jobs to fire only once per cluster, not once per server, while still providing beans from the Spring managed context and using the latest version of Quartz.
Jeff Sheets
JVM
Getting Groovy with Spring and WebSockets
June 25th, 2013
A demonstration of leveraging Project Tyrus with Groovy and Spring to build a WebSocket-driven application.
Object Partners
JVM
A Tale From the Grails trenches: Nasty 1.3.X Bug
June 11th, 2013
Grails 1.3.x has a nasty bug if you call the render method in a controller with the wrong signature
Object Partners
JVM
Redefining the Service Layer with Groovy Categories
June 5th, 2013
Demonstrating the use of Groovy Categories to redefine a traditional service layer implementation.
Object Partners
JVM
Redefining the Service Layer with Groovy Categories
June 5th, 2013
Demonstrating the use of Groovy Categories to redefine a traditional service layer implementation.
Object Partners
JVM
Use Final
May 30th, 2013
Using final can seem like overprotectiveness to some. It is certainly misunderstood by many.
Object Partners
JVM
Accessing Grails Configuration with Spring Property Placeholders
May 23rd, 2013
Demonstrates using Spring property placeholders to access Grails configuration directives.
Object Partners
JVM
Poly Driver: A Phantom Band-Aid for Geb
May 6th, 2013
An introduction to the Poly Driver plugin.
Object Partners
JVM
HTML-Encoding UTF-8 Characters
April 24th, 2013
It happens sometimes that a web page isnt using UTF-8, but theres a need to display UTF-8 data. Thankfully HTML offers encoding that allows displaying any arbitrary UTF-8 characters.
Object Partners
JVM
Refactoring? Check your settings!
April 16th, 2013
When refactoring, be sure to check your application settings as they may no longer make sense.
Brendon Anderson
JVM
Validating Grails Configurations
April 2nd, 2013
When externalizing grails app configurations for multiple environments I want to ensure values are provided for all the required/expected properties. So I wrote a plugin to help.
Object Partners
JVM
Testing Examples for the Facebook SDK Grails Plugin
March 28th, 2013
Testing Examples for the Facebook SDK Grails Plugin
Object Partners
JVM
Do you want to ROC or be Groovy?
March 26th, 2013
Compares Resource Oriented Computing to Groovy as development platforms for enterprise computing.
Object Partners
JVM
Testing tabular output in Spock
March 18th, 2013
This details a way to create tests similar to FItnesse query fixtures using the Spock framework.
Object Partners
JVM
Grails 2.2 - Publishing your Plugins as Maven Artifacts To Resolve Dependency Resolution Issues
February 13th, 2013
How to deal with dependency resolution changes for plugins in Grails 2.2 without the workaround, by publishing your plugins as Maven artifacts.
Object Partners
JVM
Grails testing - mocking 3rd-party services
February 8th, 2013
How to mock 3rd-party services in Grails functional tests
Object Partners
JVM
Introducing Maprest: A Grails Plugin for Customized and Dynamic REST Services
February 5th, 2013
Introducing Maprest: A Grails Plugin for Customized and Dynamic REST Servcies
Object Partners
JVM
Eclipse Enum Switch Warning
January 31st, 2013
I recently encountered some Java code with what seemed to be an odd warning.
Object Partners
JVM
Profiling Grails Applications With VisualVM
January 25th, 2013
Describe how to profile a Grails application using the built-in Java VisualVM application
Object Partners
JVM
DIY Graphing Calculator: Google Visualization Grails Plugin
January 22nd, 2013
Make your own graphing calculator in Grails with Google Chart Tools, the Google Visualization Plugin, and exp4j
Object Partners
JVM
Gradle Quick Start
January 18th, 2013
Getting started with Gradle, with examples. No installation necessary, get started quickly and painlessly with the included sample project.
Phil True
JVM
Customizing Grails Scaffolding and Adding Accessibility with the Fields Plugin
January 16th, 2013
Customize the way Grails generates user interfaces to get a look much closer to what you need with the fields plugin. Finally, Grails scaffolding can be useful.
Eric Foster-Johnson
JVM
REST Client Testing With MockRestServiceServer
January 9th, 2013
Using Spring MockRestServiceServer for RestTemplate client functional and unit testing, with code samples and examples.
Jeff Sheets
JVM
Using Ant Paths with the Grails Resources Plugin
December 17th, 2012
Using Ant Paths to enhance the Grails Resources plugin while organizing the code into modules with a common pattern.
Object Partners
JVM
A Few Days With Eclipse Juno
August 7th, 2012
Some impressions after using the new Eclipse Juno IDE for a few days.
Object Partners
JVM
Creating a Hierarchical Test Data Builder using Generics
May 17th, 2012
This post show how to create a hierarchical test data builder using generics.
Object Partners
JVM
Unit Testing Controllers in Grails 1.3.7
April 20th, 2012
Some setup and common issues involved with unit testing controllers in Grails 1.3.7.
Igor Shults
JVM
Tomcat v7 Parallel Deployment
April 17th, 2012
The Apache Tomcat v7 brings with it a feature called Parallel Deployment, which allows deploying more than one application to the same context.
Object Partners
JVM
Grails mock objects: mockFor vs. Gmock
April 10th, 2012
Comparing writing Grails units tests using mock objects written with mockFor and Gmock.
Object Partners
JVM
LinkedIn API in a Grails Application
April 3rd, 2012
Shows how to setup the oauth-plugin and LinkedIn API in a Grails application
Object Partners
JVM
Grails ProTip: Dynamically creating JSON in Grails 2.0 with JsonBuilder
March 22nd, 2012
How-to use the new JsonBuilder in Grails 2.0 to convert a graph of object to JSON dynamically at runtime.
Object Partners
JVM
How to Mock Final Classes in Unit Tests
March 15th, 2012
If you use Mocking framework (Mockito or EasyMocK) and you want to mock final classes, this article will provide you a simple way to actually mock them.
Neil Buesing
JVM
Using VIM as your Grails IDE Part 2
February 28th, 2012
VIM can provide some of the more advanced IDE features while still remaining lightweight. Here I discuss version control, merging and testing of a Grails application.
Object Partners
JVM
Using VIM as your Grails IDE Part 1: Navigating your project
February 21st, 2012
VIM can be used as your primary editor for Grails. Here I walk through navigation of a Grails project using various VIM plugins and scripts.
Object Partners
JVM
Quick and Easy Class and Sequence Diagrams in Eclipse
February 7th, 2012
Quick and Easy Class and Sequence Diagrams in Eclipse
Phil True
JVM
Adding a Web Module to a Gradle Project
January 31st, 2012
A blog post detailing how to add a JEE war module to an existing gradle project. Also shows how to run it with jetty via gradle.
Object Partners
JVM
Building with Gradle
January 26th, 2012
how to get started with building java projects using the gradle build system.
Object Partners
JVM
Creating a Spring @StrictDateTimeFormat Annotation
January 19th, 2012
A RegexParserDecorator to decorate any Spring Formatter to apply a regex pattern, creating a @StrictDateTimeFormat annotation as an example.
Jeff Sheets
JVM
Presentation: Grails 2.0 - what to be excited about
January 17th, 2012
Grails 2.0 is here and full of a bunch of exciting, fun stuff. Check out Sr. Consultant Zan Thrash talk about what youll see in Grails 2.0.
Object Partners
JVM
Generating Excel from Grails
January 12th, 2012
The Grails JXL Plugin can be used to generate Excel documents from a Grails application using the JXL library
Object Partners
JVM
On The Trail of a JVM Bug
December 29th, 2011
Steps taken to isolate a thread deadlock issue that leads outside the application code into the JVM and OS.
Object Partners
JVM
Grails 2.0 Has Arrived
December 16th, 2011
Latest features with the new release of Grails
Object Partners
JVM
Quick and Simple UML with UMLet
December 6th, 2011
Introduction to UMLet; a free simple tool for creating UML diagrams from the stand alone app or from Eclipse with the plugin.
Object Partners
JVM
Java Synchronization Method Performance Comparison
November 29th, 2011
Compares the performance of the various thread synchronization mechanisms provided by Java.
Object Partners
JVM
Brief Introduction to REST
November 9th, 2011
This is from a guest lecture that I delivered to a web-programming class at Bethel University this past month.
Object Partners
JVM
Eclipse Service Release Adds Support for Java7
October 6th, 2011
Just last week the Eclipse group released a service release to their Indigo version, including support for Java 7.
Object Partners
JVM
Grails: Overriding the HTTP Method
September 29th, 2011
Grails gives you the option of overriding the HTTP method via an extra parameter(_method) or a custom HTTP Header(X-HTTP-Method-Override).
Object Partners
JVM
Java v7 Released
September 20th, 2011
A quick peek at some of the new bits in the new Java version 7 from Oracle.
Object Partners
JVM
Implementing REST Authentication
June 16th, 2011
An example of implementing REST authentication by signing the URL.
Object Partners
JVM
Customizing The Grails Spring Security UI Plugin
May 24th, 2011
The Spring Security UI plugin is an extension to the core plugin. This article focuses on customizing the forgot password screens and functionality.
Object Partners
JVM
Fine-Grained Security Simplified
April 7th, 2011
A simple way to add fine-grained security to a Grails application: use annotations and a web filter.
Object Partners
JVM
Using MyBatis Annotations with Spring 3.0 and Maven
April 5th, 2011
Examples on how to use some of the MyBatis annotations and Spring.
Object Partners
JVM
GR8 in the US
February 23rd, 2011
Object Partners is proud to be the premier sponsor of this years GR8 in the US Conference. The conference, dedicated to Groovy, Grails, Griffon and other GR8 technologies is now open for registration at <a href=http://gr8conf.us>gr8conf.us</a>.
Object Partners
JVM
Hudson Forked
February 17th, 2011
Recently developers of the continuous integration tool, Hudson, have created a new project, Jenkins.
Object Partners
JVM
Start Using Eclipse with Grails Support via STS
February 15th, 2011
With the latest STS and Grails, Eclipse becomes a potential contender in creating and maintaining Grails applications.
Object Partners
JVM
Grails Testing: Domain Constraints
February 10th, 2011
Developer Testing Unit Testing Grails Domain and Command constraints
Object Partners
JVM
Using Gradle to augment your legacy Ant build
January 4th, 2011
Gradle is a powerful build tool that can be used as a replacement for Ant. This article describes the benefits of moving to Gradle and a simple way to do so.
Object Partners
JVM
Loading test BLOB data into HSQLDB with a Groovy Ant Task
December 30th, 2010
Insert BLOB Data into HSQLDB via ANT Groovy plugin for JUnit testing
Object Partners
JVM
Grails Experience :: Should we use Grails?
December 28th, 2010
Have you ever been on a grails/groovy project that failed because of * limitations/faults in the technology itself * the grails/groovy learning curve Colin Harrington, a Senior Consultant at Object Partners, responds to a common question that we hear based on his years of experience.
Object Partners
JVM
How To Write JUnit Tests
December 21st, 2010
Recently Ive been asked how do you get started writing unit tests? I had to give great thought to the question. A lot of us have been writing unit tests for a long time, most using JUnit or a similar suite, so to many of us its kind of second nature. After pondering and chatting more, heres what I came up with.
Object Partners
JVM
New Spring 3.0.5 Released (Hibernate 3.6.0 Final, too)
November 18th, 2010
Version 3.0.5 of the Spring framework and 3.6.0 of the Hibernate framework have been released
Object Partners
JVM
Grails Plumbing: Spring AOP Interceptors With Annotations
November 16th, 2010
Wiring up a Grails application to use Springs Interceptors with Annotations
Object Partners
JVM
Unit Testing your Persistence Tier code
November 9th, 2010
Writing Java JUnit unit-tests for your JPA/Hibernate persistence-tier code leveraging a memory resident database, HSQLDB.
Neil Buesing
JVM
Why Grails?
November 4th, 2010
Overview of benefits of using Grails and Groovy on web development projects.
Object Partners
JVM
Grails Plumbing: Spring AOP Interceptors
October 19th, 2010
Overview of how to use Spring AOP Interceptors and DailyRollingFileAppender in your Grails Project
Object Partners
JVM
Keep Your Code Clean
October 14th, 2010
Theres no excuse for not cleaning up when making code changes. A simple rule to follow is that there should be no compiler warnings in your code!
Object Partners
JVM
Update: Fast path switching between projects
October 12th, 2010
Yesterday I overheard a couple co-workers talking about this cool script they found for quickly switching between development projects. Turns out they were talking about my old post so I thought I’d share the latest version of the script. Back in…
Object Partners
JVM
Embracing Mylyn
August 26th, 2010
Using the powerful task-focused interface provided in Eclipse, project and application lifecycle management can be eased.
Object Partners
JVM
Gaining Access to the Spring Context in Non Spring Managed Classes
August 23rd, 2010
There are times where it’s not practical (or possible) to wire up your entire application into the Spring framework, but you still need a Spring loaded bean in order to perform a task. JSP tags and legacy code are two such examples. Here is a…
Jon Baso
JVM
Integrating OpenSSO/OpenAM with Liferay Portal on Tomcat
August 16th, 2010
Integrate OpenSSO/OpenAM with Liferay Portal on Tomcat to achieve single-signon.
Steve Banks
JVM
Spring @PathVariable Head-slapper
August 12th, 2010
A simple oversight in the documentation and potentially unnecessary default in the Spring @PathVariable annotation can cause runtime trouble.
Object Partners
JVM
How Do Annotations Work?
August 6th, 2010
A quick trip through some examples of how to define, find, and ultimately use annotations to get work done on diverse classes.
Object Partners
JVM
Packaging your Java application for the Mac
August 3rd, 2010
The Mac has some nice tools to turn your jar file into a first class Mac application. This is most useful if the application has a GUI interface; Swing, SWT, etc. There are three parts to this process: Package your application as a jar file Create an…
Object Partners
JVM
Sun Java 1.6.0_21 Not Detected By Eclipse
July 30th, 2010
A quick-fix to get Eclipse running again after an automatic update makes the Sun JVM again undetectable.
Object Partners
JVM
Spring Release v3.0.3
July 9th, 2010
Spring released version 3.0.3 of the Spring Framework
Object Partners
JVM
Ten Minutes With Eclipse Helios
July 6th, 2010
On June 23rd, Eclipse launched their new release (v3.6), named Helios. Heres (good) impressions after playing with it for about ten minutes.
Object Partners
JVM
Usage Patterns for Gaelyk
June 29th, 2010
pre { border: solid 1px black; font-size: 1.3 em; color: black; margin: 10px; padding:10px; background: #CCCCCC; } Using Groovy on Google App Engine is relatively simple due to Groovy’s compatibility with Java. However, until recently, the…
Object Partners
JVM
External Per-Context Variables in Tomcat
June 23rd, 2010
Configuring variables outside of a WAR file for use with each instance deployed.
Object Partners
JVM
Suppressing Ant cant find JAR Warnings
April 19th, 2010
Suppress cant find JAR warnings generated by javac when running in Ant.
Object Partners
JVM
Canoo Webtest - Interpreting the test results!
March 10th, 2010
How to interpret and use the test results for Canoo Webtest, particularly when tests dont pass or you dont even get the report screen.
Object Partners
JVM
Updating or Starting Spring 3.0 Project
March 1st, 2010
For those with Spring projects already in progress, as well as those starting new projects, a number of new features are available, and some changes must be made to take advantage of them.
Object Partners
JVM
Framework for a Multi-stage Spring Property Loader Extension Allowing Dynamic Updates of Properti...
February 22nd, 2010
Overview It is commonplace in enterprise applications to allow application properties to be loaded from configuration files. When leveraging Spring, this is typically achieved using a PropertyPlaceholderConfigurer instance within the application…
Object Partners
JVM
Enabling JMX monitoring of SEDA Queue Depths in Apache Camel
February 15th, 2010
Apache Camel’s SEDA (Staged Event-Driven Architecture) endpoints (http://camel.apache.org/seda.html) provide a useful and quick mechanism to implement asynchronous, event-driven processing within your applications. See http://www.eecs.harvard.edu/~mdw/proj/seda/ for the original description of the SEDA architecture. For those not very familiar with Camel, implementing a SEDA route can be as simple as adding the following to a route builder class:
Object Partners
JVM
The Groovy Spaceship Operator Explained
February 8th, 2010
A brief explanation of the Groovy spaceship operator, its usage, and the advantages of using it.
Object Partners
JVM
Immutable Data Structures in Concurrent Java Applications
February 1st, 2010
Using immutable data structures to minimize complexity and risk in concurrent applications.
Object Partners
JVM
Using JPA and JAXB Annotations in the Same Object
January 25th, 2010
Using both JPA and JAXB annotations on the same member of an object can cause runtime errors if not done correctly. Heres how to do it.
Steve McCoole
JVM
Subversion and Hudson From Scratch
January 18th, 2010
A step-by-step approach to get Hudson Continuous Integration working behind an Apache web server, building an Ant project fetched from Subversion.
Object Partners
JVM
Exactly how is your development environment configured?
January 4th, 2010
Exactly how is your development environment configured? I solved this problem with a simple script...
Object Partners
JVM
Fast path switching between projects
December 29th, 2009
Really fast and easy to try different versions of things that are wired into the command line path. For example, switching grails versions is as simple as...
Object Partners
JVM
Simplifying JPA Testing with Springs PersistenceUnitPostProcessor
December 11th, 2009
At my current client, we are writing an application that is deployed as an ear into Websphere. One of the goals of the project is to write out-of-container tests so that we dont have to build and deploy over and over again. Two of the tools we are using in this application is JPA for the ORM and Spring. Initially, we had two persistance.xml files, one for production and one for testing. Some of the differences were that the production version used a transaction type of JTA and the test version used resource local. There were a few other property differences, but otherwise they needed to be identical. At first this was ok, but as our list of classes and properties grew it became a maintenance hassle.
Object Partners
JVM
Write Readable Tests with Mockito
December 4th, 2009
A good mocking framework is a must have in any Java developers toolset. Mocking frameworks greatly reduce the amount of code needed to effectively mock dependent interfaces and/or classes. Over the past several years EasyMock has been my mocking…
David Reines
JVM
Mac OS X Development Hurdles
November 23rd, 2009
Moving to Mac OS X as a development environment and some issues or differences discovered.
Object Partners
JVM
Default settings of svn:keywords property
October 28th, 2009
Keyword expansion is not the default for files added to an SVN repository. And it’s done on a per file basis (with CVS we could configure an entire repository to turn on keyword expansion — .) Some svn tools and plugins allow for defaulting…
Object Partners
JVM
Delivering Business Value Through Polyglot Systems (part 4 / conclusion)
September 21st, 2009
In my previous three posts, I described my experience with maintenance, refactoring, and installation on a large project that used both Java and Groovy. In this post, I will discuss the “support nightmare” raised by Bill Burke in his blog post…
Object Partners
JVM
Delivering Business Value Through Polyglot Systems (part 3)
August 26th, 2009
In my previous two posts, I described my experience with maintenance and refactoring on a large project that used both Java and Groovy. In this post, I will discuss the installation concerns raised by Bill Burke in his blog post “Polyglot…
Object Partners
JVM
Delivering Business Value Through Polyglot Systems (part 2)
August 20th, 2009
In part 1, I described how my experiences using both Groovy and Java delivered business value to the customer by letting the project team work with code that closely reflected the domain. We found the new system didn’t result in a “maintenance…
Object Partners
JVM
Delivering Business Value Through Polyglot Systems (part 1)
August 10th, 2009
My answer to Peter Ledbrooks’s blog post “Are polyglot systems a good idea?” is “Yes!“. He wrote his post after reading “Polyglotism is the worst idea I ever heard ” by Bill Burke. I don’t know Bill Burke personally but the post has a troll-like…
Object Partners
JVM
Running and Debugging Grails Integration Tests In Eclipse
June 2nd, 2009
This is a follow on to Eclipse Setup for Grails 1.1 Development . Although not ideal Eclipse integration, by setting up a Run Configuration for your Grails project in Eclipse, you will be able to run and debug Grails integration JUnit tests within…
Torey Lomenda
JVM
Eclipse Setup for Grails 1.1 Development
May 27th, 2009
Overall I have enjoyed the development experience with Grails and I am excited about its future. I am a heavy Eclipse user so along with a number of folks in the community I have been a bit disappointed with the support in my favorite IDE. However…
Torey Lomenda
JVM
Automated Integration Testing with HttpUnit and ServletUnit
April 3rd, 2009
One frequent hole in Test Driven Development (or any other comprehensive attempt to test) in Java web applications is the presentation layer. Especially when using an MVC pattern to separate the work from the display, the trend is to do that testing…
Object Partners
JVM
Unit Testing Grails in Eclipse
February 16th, 2009
For the past several weeks, I’ve been working on a Grails app in my spare time, and I’m really excited about the future of Grails. However, I’ve been a bit disappointed in the tooling currently available. Myself and many of my clients use Eclipse…
David Reines
JVM
Observations on Code Coverage Tools and Unit Tests
January 15th, 2009
At my current client, there’s a drive to put more unit tests on the Java code. It’s been a long hard process as few of the developers do strict, or even just “mostly,” test-driven development. As an attempt to try and drive this home, they’ve also…
Object Partners
JVM
Equals and HashCode
January 10th, 2009
It happens far too often that developers shortcut creating and in their objects. This discussion hopes to enlighten those short-cutters, and introduce a simple solution to their problem. The use of and is assumptive of only one concern, and…
Object Partners