Create a new JDBC connection pool using "GlassFish" category and here is how it looks like:

  <jdbc-connection-pool  ...>
    <property name="URL" value="jdbc:derby://localhost:1527/sun-appserv-samples"/>
    <property name="serverName" value="localhost"/>
    <property name="PortNumber" value="1527"/>
    <property name="DatabaseName" value="sun-appserv-samples"/>
    <property name="User" value="APP"/>
    <property name="Password" value="APP"/>
  </jdbc-connection-pool>

The first property of "URL" is redundant cause all the information already exists in the subsequent properties.