JBoss Application Server Listening to all IPs

When you start the JBoss Application Server usually it is not visible to other machines on the local network like other Web Server/Servlet Containers such as Apache or Apache Tomcat. In order to make JBoss available to all IP addresses, you should place an extra parameter to the start up Script. The extra parameter is -b 0.0.0.0 which allows any IP to communicate with the JBoss.

Ex. Windows Client

run.bat -b 0.0.0.0

You can restrict the JBoss availability to certain IP address by using the same command -b XXX.XXX.XXX.XXX.

Hibernate and MySQL Database Connections

Hibernate and MySql connection lost

The hibernate when it is combined with MySQL commonly produces errors like Communication Link Failure or Last Packet sent to server XX ms ago or Socket Write Error etc. These problems often caused due to the timeout values of the MySQL server. When hibernate tries to re-connect to the Server there is no active connection to use and as a result an exception is thrown.

A common situation you may put your self in is to build a web app and everything work fine but when you return the following day you are facing exceptions. When you restart the server everything works fine again, but after a short amount of time you are facing the same exceptions.

There is a solution for this,

Change the hibernate's cfg.xml file and put the following lines,

<property name="connection.provider_class">
org.hibernate.connection.C3P0ConnectionProvider</property>

<property name="c3p0.max_size">100</property>
<property name="c3p0.idleConnectionTestPeriod">300</property>

Also do not forget to put c3p0-x.xx.x.jar into your classpath or server's lib folder.

Posters with PosterGenius Software http://www.postergenius.com/

PosterGenius™ is a powerful, user-friendly software application that helps you create professional looking scientific posters in less than 10 minutes.Designed by physicians, scientists and researchers and created by software engineers in cooperation with graphic designers, PosterGenius™ offers a workflow tailored to the needs of everyone who creates scientific posters.
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PosterGenius™ separates the content from the design of the poster and enables the user to focus on research results while the application automatically optimizes and manages all the rest: design and appearance, dynamic flow and placement of text, images, captions, tables and graphs, font printing and other parameters.
Edit your poster with unparalleled ease.

Once a poster is created, the user has the option to easily change various specifications such as poster dimensions, number of columns, appearance and overall design with just the click of a button. As a result of this, the user can very easily modify a poster sent to a previous conference to comply with the guidelines of a new conference, while he focuses on the introduction of new data and findings.

http://www.postergenius.com/

New PosterGenius Software Tutorials

Updated tutorial on how to create a scientific poster in a few easy steps.