Bruno Pereira

After some extra effort today, I did manage to get WSO2 Registry working in JBoss 4.0.5

The huge amount of jdbc error messages in the server logs were not actually errors. JBoss datasources have a configuration element called <track-statements>. When this option is turned on, JBoss logs massively when there are Statements or ResultSets that are left open. The application server closes the Statements and the ResultSets, and shows many many logs indicating this. The log messages I was seeing were not errors in the Registry, they were only JBoss warnings.

All our datasources in my team have this option turned on, and we always take care to close the ResultSets and Statements in all our applications. But since the server closes the ResultSets and Statements, I can live with the way the Registry does

I had to do some things to get the Registry working in JBoss. First, I had to remove the log4j the Registry had packed inside its war file. Our JBoss servers use the Unified Classloader, for several years already. This setup was there before I even joined the company, and it’d complicated to change this now, because it’d make us modify several applications. Not being able to change the Classloader, the log4j packed inside the Registry (1.2.13) would conflict with the one present in JBoss itself (1.2.8), so I had to remove it from the Registry’s war. The application worked just fine using log4j 1.2.8, so it’s ok to do this.

After fixing this, I had to enable Java 1.5 code in the jsps. JBoss by default does not allow Java 1.5 code in the jsps, and to modify this, I had to uncomment the code below inside JBOSS_HOME/server/default/deploy/jbossweb-tomcat55.sar/conf/web.xml:

<init-param>
<param-name>compilerSourceVM</param-name>
<param-value>1.5</param-value>
</init-param>

This init-param belongs to <servlet-class>org.apache.jasper.servlet.JspServlet</servlet-class>, and solves the jsp compilation problem.

Well, that’s what I had to do to make WSO2 Registry work in JBoss. Most of the problems I faced were not Registry’s fault, so I’m sorry for having a wrong impression after some setup problems this week.

I’m currently integrating WSO2 Registry in our architecture and once I finish, I’ll document our architecture here, so that other people can see what uses we’re making of the product.

This entry was posted on Wednesday, September 24th, 2008 at 10:26 pm and is filed under java, open source, posts in english, rest, soa. You can follow any responses to this entry through the RSS 2.0 feed. You can leave a response, or trackback from your own site.