java

A collection of 57 posts

JRuby – can’t convert Hash into String

I’ve recently upgraded a JRuby/Rails application from JRuby 1.6.3 (1.8 compatibility mode) to 1.6.8 (1.9 mode). Everything was working out fine except for actions relying on internal CSV library (FasterCSV in 1.

java ruby

newrelic – undefined method `-’ for nil:NilClass

Using JRuby with trinidad (developer mode) – I was intermittently getting this error. Apparently thrown as estimated_time for the transaction was returning nil. I was also having all sorts of other issues (undefined method `metric_name’ for nil:NilClass) with

java ruby web

Java for the forever beginner (II)

If your JSP code is almost 2/3rd pure Java code, then you’re doing something wrong.  One easy way of knowing Java code from HTML/Snippets is to look at the PALE GREEN (see image for color tone). If

java web

Rails vs The 7 Frameworks

This has nothing to do with comparing 8 different frameworks. It’s just to tell the horror story of one of our down-the-drain projects. The client came with an old product that he needed to add new features to. The

general java professional ruby

Pyramids, Application. An Analogy

Working on maintaining and modifying a five year-old Java application, I came to realize there’s a strong relation between legacy and pyramids. Here’s an analogy: | Pyramids are HUGE monuments, built for the sole purpose of being a tomb

general java ruby

Multiple-Application Login

I’m trying to handle an integration between a humongous code-base Java application (doing basic stuff) with a new Rails application (talking about injecting Rails transparently). Handling login (multi-application logins) was my first obstacle, and after talking with Steven and

java ruby

Ruby on Rails – Lunch and Learn

Last Friday was my Ruby on Rails presentation at Commerx Corporation (in Lunch and Learn series). It wasn’t as good as I wanted, but, wasn’t too bad either. Some keys on the laptop were in the on-again-off-again mode,

java ruby