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Chris Muir

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Top Stories by Chris Muir

Oracle on Ulitzer Do you believe that the day when programmers could focus on one language in their jobs is gone? Thanks to the ever-changing IT landscape and the uncertain financial times, contemporary developers are expected to work with a wide range of platforms, frameworks, languages as essentially "masters of all and specialists in none." You need your IDE to move with the times too, moving beyond the simple compiler and debugger to solve the challenges that contemporary developers face. Oracle JDeveloper is such an IDE. From a fledging Java IDE over 10 years ago, today JDeveloper 11g is a complete end-to-end development platform, including a strong declarative programming model that removes the need to write everything by hand in Java, a mature framework used by Oracle itself in its own products that encompasses Object-Relational Mapping (ORM) and Web 2.0 fun... (more)

SoapUI for Web Service Testing

A popular tool for web service testing is SoapUI. The following blog post describes how to use it for testing a simple web service, as well as setting up a series of tests and even load/stress testing. Without a doubt similar documentation is available on the SoapUI website; my post gives my spin on the product that maybe useful to others. In this post we'll look at: 1) A simple web service example 2) Creating a simple test in SoapUI 3) Creating a test suite 4) Loast/stress testing your web services Our web service The web service we'll use here for testing is a simple Hello World exam... (more)

Stress & Load Testing Web Apps (Even ADF & Apex) Using Apache JMeter

A couple of years ago I presented Take a load off! Load testing your Oracle Apex or JDeveloper web applications at OOW and AUSOUG. I can't recommend enough the importance of stress testing your web applications, it's saved my bacon a number of times. Frequently as developers, we develop under a single user (developer) model where concurrency issues are easily avoided. When our programs hit production, with just 1 more user, suddenly our programs grind to a halt or fall over in bizarre places. Result, pie on developers' faces, users' faith in new technologies destroyed, and genera... (more)

Upgrading Oracle WebLogic Servers from 10.3 to 10.3.1

Recently we upgraded our Oracle WebLogic Servers from 10.3 to 10.3.1, and coincidentally migrated a JDeveloper ADF application 11g to 11gR1. ADF applications require a set of libraries that must be deployed to WLS before the ADF application can run, of which we completed successfully, or so we thought. This post documents a little trap for new players when configuring WLS and deployed applications. On deploying our upgraded ADF 11gR1 application to our WLS 10.3.1 server with the updated ADF libraries, we hit an error on deployment from JDev. The logs showed the following results:... (more)

An Obscure JDeveloper Bug

There’s a rather obscure JDeveloper bug that only effects IE7, for af:columns in af:tables that show af:outputText fields based on dates that are null (phew, try and say that with a mouth full of wheaties). It occurs in 11.1.1.4.0 and 11.1.2.0.0 (and all versions in between it’s assumed). In the previous picture from IE7 if you look closely, you’ll notice that the HireDate2 column has lost its border for the null entries. Note the other columns even when they are null, still have a border. If we look under IE8 (or any other browser for that matter) we see the problem doesn’t occur... (more)