Time, Cost, Quality and Agile Consulting

Types of Consulting Engagements

Sometimes it's a little better to travel than to arrive
- Robert M. Pirsig
Author's profile picture Maurizio Turatti on business

Managing Multiple JDK on Mac OS X

Recently I had to install the OpenJDK 7 on my Apple MacBook, but keeping the original JDK 6 as my main Java environment. After browsing the Internet I came to a decent set of instructions (Tested with OS X Lion 10.7.3).

In summary:
  1. Get the OpenJDK from http://code.google.com/p/openjdk-osx-build/ (I chose JDK 7u4, which at present seems to be the latest stable build); The JDK 7 is now a regular download by Oracle: http://www.oracle.com/technetwork/java/javase/downloads/index.html
  2. Install the downloaded .dmg package;
  3. Change your Java Preferences accordingly, by moving on top the "OpenJDK 7" item (by default Java SE 6 is the first item - see below picture);
  4. Automatically set the JAVA_HOME variable, so that shell tools work.
To automatically setup the JAVA_HOME variable it's necessary to add few lines to the .profile.
So, edit this file (it's in your home directory) adding the following lines:

# Change your JAVA_HOME
function setjdk() {
if [ $# -ne 0 ];
then export JAVA_HOME=`/usr/libexec/java_home -v $@`;
java -version;
# Automatically set the JAVA_HOME
export JAVA_HOME=`/usr/libexec/java_home`

Note that the optional setjdk function allows for dynamically changing the JAVA_HOME if you switch items in your "Java Preferences", otherwise many Java tools won't work if JAVA_HOME is not in synch with the System settings.

Whenever you change the default JDK using the "Java Preferences" tool, then any new terminal will automatically pick-up the new JAVA_HOME by executing /usr/libexec/java_home, so executing the setjdk function is not usually necessary, unless you really don't want to close and re-open the terminal (opening the terminal reloads the .profile). Alternatively issue the command source .profile in you shell.

That's it, now you can install multiple JDKs and select them dynamically, by just using the "Java Preferences" tool, without touching any system file by hand.
Author's profile picture Maurizio Turatti on technology

XML Schema and WSDL modules for Netbeans 7.x

A couple of years ago I wrote a blog entry about how to install the missing XML Schema Editor and related utilities from the dev update center in Netbeans 6.9. Now there is a unofficial update center:


It contains the development branches of these and instructions on how to install, thanks to Geertjan Wielenga.

I installed the plugin on Netbeans 7.1 [update: I installed it also in 7.2] and it seems to work, even if I did not test it intensively, primarily because these days I'm no more working that much with XML Schemas and WSDL files.

There is an apparently disabled Hudson project for the XML Tools. Now, if you want to put this nice plugin back into the regular plugin repository, please vote for this issue!
Author's profile picture Maurizio Turatti on technology

Starting with CMIS and Maven

This post aims to be an short how-to for setting up a CMIS development environment based on Maven and Apache Chemistry, specifically the OpenCMIS Java API, part of the Chemistry project.

I won't cover Maven installation and configuration here, so I assume you have Maven 2 or 3 up and running. With Maven you'll be independent from any specific IDE, so that you can manage your development cycle from the command line only.

Author's profile picture Maurizio Turatti on technology