Feras,
problema Resolvido irei postar a solução para futuras dúvidas,
O problema era apenas o caminho onde adicionei o modulo.xml com o jar pois estava colocando no caminho
C:\jboss-as-7.1.1.Final\modules\com\oracle\main e estava dando o erro New missing/unsatisfied dependencies
ai alterei o caminho para C:\jboss-as-7.1.1.Final\modules\com\oracle\jdbc\main e nesse diretório contém meu module.xml e o jar ojdbc6.jar
conteudo do module.xml
<?xml version="1.0" encoding="UTF-8"?>
<module xmlns="urn:jboss:module:1.0" name="com.oracle.jdbc">
<resources>
<resource-root path="ojdbc6.jar"/>
</resources>
<dependencies>
<module name="javax.api"/>
<module name="javax.transaction.api"/>
</dependencies>
</module>
na pasta deployments no caminho C:\jboss-as-7.1.1.Final\standalone\deployments adicionei o jar ojdbc6.jar
meu arquivo standalone.xml com os 2 DataSource e os Drives ficou assim:
<datasources>
<datasource jta="true" jndi-name="java:/catalina" pool-name="my_pool" enabled="true" use-java-context="true" use-ccm="true">
<connection-url>jdbc:mysql://localhost:3306/catalina</connection-url>
<driver>mysql</driver>
<security>
<user-name>user</user-name>
<password>pass</password>
</security>
<statement>
<prepared-statement-cache-size>100</prepared-statement-cache-size>
<share-prepared-statements>true</share-prepared-statements>
</statement>
</datasource>
<datasource jndi-name="java:/DefaultDS" pool-name="DefaultDS_pool" enabled="true" use-java-context="true">
<connection-url>jdbc:oracle:thin:@servidor:1521:HOMOLOG</connection-url>
<driver>oracle</driver>
<security>
<user-name>user</user-name>
<password>pass</password>
</security>
</datasource>
<drivers>
<driver name="oracle" module="com.oracle.jdbc">
<driver-class>oracle.jdbc.driver.OracleDriver</driver-class>
<xa-datasource-class>oracle.jdbc.xa.client.OracleXADataSource</xa-datasource-class>
</driver>
<driver name="mysql" module="com.mysql">
<xa-datasource-class>com.mysql.jdbc.jdbc2.optional.MysqlXADataSource</xa-datasource-class>
</driver>
</drivers>
</datasources>
meu Persistence.xml
<?xml version="1.0" encoding="UTF-8"?>
<persistence version="2.0"
xmlns="http://java.sun.com/xml/ns/persistence" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/persistence
http://java.sun.com/xml/ns/persistence/persistence_2_0.xsd">
<!-- ########################################## -->
<!-- Configuração Acessar Banco de Dados Mysql -->
<!-- ########################################## -->
<persistence-unit name="portalEmail" transaction-type="RESOURCE_LOCAL">
<provider>org.hibernate.ejb.HibernatePersistence</provider>
<jta-data-source>java:/catalina</jta-data-source>
<class>br.com.getnet.portalsistemaretaguarda.produtoTO.ProdutoTO</class>
<properties>
<property name="hibernate.dialect" value="org.hibernate.dialect.MySQL5InnoDBDialect" />
<property name="javax.persistence.jdbc.url" value="jdbc:mysql://localhost:3306/catalina" />
<property name="javax.persistence.jdbc.driver" value="com.mysql.jdbc.Driver" />
<property name="javax.persistence.jdbc.password" value="user" />
<property name="javax.persistence.jdbc.user" value="pass" />
<property name="hibernate.hbm2ddl.auto" value="update" />
<property name="hibernate.show_sql" value="true" />
<property name="hibernate.format_sql" value="true" />
</properties>
</persistence-unit>
<!-- ########################################## -->
<!-- Configuração Acessar Banco de Dados Oracle -->
<!-- ########################################## -->
<persistence-unit name="portalEmailOracle" transaction-type="RESOURCE_LOCAL">
<provider>org.hibernate.ejb.HibernatePersistence</provider>
<jta-data-source>java:/DefaultDS</jta-data-source>
<class>br.com.getnet.portalsistemaretaguarda.produtoTO.ProdutoTO</class>
<properties>
<property name="hibernate.dialect" value="org.hibernate.dialect.OracleDialect" />
<property name="javax.persistence.jdbc.url" value="jdbc:oracle:thin:@servidor:1521:HOMOLOG"/>
<property name="javax.persistence.jdbc.driver" value="oracle.jdbc.OracleDriver" />
<property name="javax.persistence.jdbc.password" value="pass" />
<property name="javax.persistence.jdbc.user" value="user" />
<property name="hibernate.show_sql" value="true" />
<property name="hibernate.format_sql" value="true" />
</properties>
</persistence-unit>
</persistence>