[jboss-as7-dev] datasource driver in standalone-full.xml

[ArchangelAurora .]

Hi all, I'm using jboss-eap 6.2 as 7.4, when I start the server with
default standalone.xml config, it sees my MySQL driver deployd as a
module and I can connect to the datasource. But when I start it with
standalone-full.xml, it says:

ERROR [org.jboss.as.controller.management-operation] (ServerService
Thread Pool -- 31) JBAS014613: Operation ("add") failed - address: ([
    ("subsystem" => "datasources"),
    ("jdbc-driver" => "mysql")
]) - failure description: "JBAS010441: Failed to load module for
driver [com.mysql]"


though datasource parts in my standalone and standalone-full.xml files
are exactly the same:

        <subsystem xmlns="urn:jboss:domain:datasources:1.1">
            <datasources>
                <datasource
jndi-name="java:jboss/datasources/ExampleDS" pool-name="ExampleDS"
enabled="true" use-java-context="true">

<connection-url>jdbc:h2:mem:test;DB_CLOSE_DELAY=-1;DB_CLOSE_ON_EXIT=FALSE</connection-url>
                    <driver>h2</driver>
                    <security>
                        <user-name>sa</user-name>
                        <password>sa</password>
                    </security>
                </datasource>
                <datasource jndi-name="java:jboss/datasources/yyDS"
pool-name="yyDS" enabled="true" use-java-context="true">

<connection-url>jdbc:mysql://localhost:3306/yy</connection-url>
                    <driver>mysql</driver>
                    <pool>
                        <min-pool-size>30</min-pool-size>
                        <max-pool-size>400</max-pool-size>
                        <prefill>true</prefill>
                    </pool>
                    <security>
                        <user-name>yy</user-name>
                        <password>yy</password>
                    </security>
                </datasource>
                <drivers>
                    <driver name="h2" module="com.h2database.h2">

<xa-datasource-class>org.h2.jdbcx.JdbcDataSource</xa-datasource-class>
                    </driver>
                    <driver name="mysql" module="com.mysql"/>
                </drivers>
            </datasources>
        </subsystem>

Secondly, when I start jboss from the console with standalone.bat, I
can login to management console but when I start it from JBoss
developer studio, it says "However you have not yet added any users to
be able to access the admin console.". What's the difference?