I am getting this error An error occured while rendering window 'default.Admin.ManagementPortletWindow' in Management Portlet.
and java.lang.NullPointerException in the content area.

The root+ button does not work in CMS Admin.

I changed my database configuration MySQL.

I have hsldb-ds.xml not changed.

portal-ds.xml changed for MySQL
portal-mysql-ds.xml changed for MySQL
portal-hsqldb-ds.xml changed for MySQL

Sample

<?xml version="1.0" encoding="UTF-8" ?>
- <datasources>
- <local-tx-datasource>
 <jndi-name>portalDS2</jndi-name>
 <connection-url>jdbc:mysql://localhost:3306/jbossportal?useServerPrepStmts=false;jdbcCompliantTruncation=false</connection-url>
 <driver-class>org.gjt.mm.mysql.Driver</driver-class>
 <user-name>admin</user-name>
 <password />
 </local-tx-datasource>
 </datasources>

In all three .xml files I have different jndi name for <jndi-name>portalDS2</jndi-name>

I am able to create a new user, and see the changed updated in MySQL. The tables are created with default value.

Thanks in advance

Siva