anonymous wrote : <sql:setDataSource dataSource="java:PostgresDS" /> Custom Tag libraries are not used properly . You should be using it in this way | <sql:setDataSource | var="example" | driver="org.postgresql.Driver" | url="jdbc:postgresql://localhost:5432/jboss" | user="jboss" | password="" | /> | For more details look here http://www.oracle.com/technology/sample_code/tech/java/codesnippet/jsps/j... And use GOOGLE it is free :) View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4107779#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...