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Posted to user@geronimo.apache.org by Alexandros Karypidis <ak...@yahoo.gr> on 2010/02/12 15:53:24 UTC
Container-managed JPA in pure WAR with JNDI
Hello,
My scenario is this:
I have a library with entities (as in @Entity objects) containing my domain model. I want to declare a container-managed persistence unit in a standalone WAR (not EAR), using that library (the persistence.xml must NOT be in the library, but the WAR). So, I proceed as follows (this is valid as far as I know, base on J2EE5 specs):
1) I have declared a data source in geronimo-web.xml and web.xml (see below for file contents).
2) I put my library (as a jar) in my WAR's WEB-INF/lib and added a WEB-INF/classes/META-INF/persistence.xml in the WAR (see below for file contents).
Deployment after performing step (1) worked and I could see the data source registered in the console.
Deployment after performing step (2) fails; from what I understand from the error (see below), geronimo claims the data-source from step (1) does not exist. I assume that geronimo tries to create the persistence context prior to registering the data source? (i.e. it processes persistence.xml prior to apply the configuration from web.xml and geronimo-web.xml).
What do I need to configure this properly. My deployment descriptors and the error trace follow:
persistence.xml
-------------------------------------------------------------------------------------------------------------------------------------------------
<?xml version="1.0" encoding="UTF-8"?>
<persistence
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_1_0.xsd"
version="1.0">
<persistence-unit name="appPersistenceUnit" transaction-type="JTA">
<jta-data-source>jdbc/AppDataSource</jta-data-source>
<jar-file>app-entities.jar</jar-file>
</persistence-unit>
</persistence>
web.xml
-------------------------------------------------------------------------------------------------------------------------------------------------
<?xml version="1.0" encoding="UTF-8"?>
<web-app
xmlns="http://java.sun.com/xml/ns/j2ee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="
http://java.sun.com/xml/ns/j2ee
http://java.sun.com/xml/ns/j2ee/web-app_2_5.xsd"
version="2.4">
<display-name>App</display-name>
<!-- Unrelated Spring contextListener and Wicket filter configuration here
have been supresed -->
<resource-ref>
<res-ref-name>jdbc/AppDataSource</res-ref-name>
<res-type>javax.sql.DataSource</res-type>
<res-auth>Container</res-auth>
<res-sharing-scope>Shareable</res-sharing-scope>
</resource-ref>
<!--
Ultimately I want to do this, but I can't get persistence.xml to work...
<persistence-unit-ref>
<persistence-unit-ref-name>persistence/appPersistenceUnit</persistence-unit-ref-name>
<persistence-unit-name>appPersistenceUnit</persistence-unit-name>
</persistence-unit-ref>
-->
</web-app>
geronimo-web.xml
-------------------------------------------------------------------------------------------------------------------------------------------------
<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns="http://geronimo.apache.org/xml/ns/j2ee/web-2.0.1"
xmlns:naming="http://geronimo.apache.org/xml/ns/naming-1.2"
xmlns:sec="http://geronimo.apache.org/xml/ns/security-2.0"
xmlns:sys="http://geronimo.apache.org/xml/ns/deployment-1.2">
<sys:environment>
<sys:moduleId>
<sys:groupId>app</sys:groupId>
<sys:artifactId>app-frontend</sys:artifactId>
<sys:version>0.0.1</sys:version>
<sys:type>car</sys:type>
</sys:moduleId>
<sys:dependencies>
<!-- Need the embedded Derby -->
<sys:dependency>
<sys:groupId>org.apache.geronimo.configs</sys:groupId>
<sys:artifactId>
system-database
</sys:artifactId>
</sys:dependency>
</sys:dependencies>
</sys:environment>
<context-root>/app</context-root>
<!-- Ultimately, I want to register the PU in JNDI,
but persistence.xml does not work
<naming:persistence-unit-ref>
<naming:persistence-unit-ref-name>persistence/appPersistenceUnit</naming:persistence-unit-ref-name>
<naming:persistence-unit-name>persistence/appPersistenceUnit</naming:persistence-unit-name>
</naming:persistence-unit-ref>
-->
<naming:resource-ref>
<naming:ref-name>jdbc/AppDataSource</naming:ref-name>
<naming:resource-link>SystemDatasource</naming:resource-link>
</naming:resource-ref>
</web-app>
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Re: Container-managed JPA in pure WAR with JNDI
Posted by David Jencks <da...@yahoo.com>.
On Feb 13, 2010, at 10:00 AM, Alexandros Karypidis wrote:
> Hello David,
>
> Thanks for helping out. Following yout e-mail:
>
> 1) I've fixed the problem by using "SystemDatasource" (not
> SystemDatabse) as the name.
>
> 2) I don't really care whether Geronimo uses JNDI or not internally.
> I need to register the JPA persistence context in my web
> application's JNDI context, as I am using Spring which expects to be
> able to look it up via JNDI (using <jee:jndi-lookup .../> if you're
> familiar with Spring). So I need the reference in web.xml for my own
> purposes. Anyway, it works now so this has been resolved.
Getting the persistence unit into jndi is different from getting the
datasource it uses in jndi.
>
> 3) I don't really intend to use Derby; I was just taking things step-
> by-step. Having said that, how do I define my own datasource in
> Geronimo? For example, in JBoss you use a "somename-ds.xml" file to
> register a datasource.
Easy way to get started is to use the wizard... http://cwiki.apache.org/GMOxDOC22/configuring-datasource.html
I prefer to build all my apps as geronimo plugins and assemble a
custom server around them, but using the wizard to get the initial
plan is very convenient.
hope this helps
david jencks
>
> On 12/2/2010 8:20 μμ, David Jencks wrote:
>> Geronimo doesn't use jndi for the datasources in persistence.xml.
>> You don't need to configure resource-refs for the datasources. You
>> do need to make sure they are in ancestor plugins to the app and
>> that you use the name from the datasource configuration. In this
>> case I think that would be
>> <jta-data-source>SystemDatabase</jta-data-source>
>>
>> In my experience, at least with derby, you need both jta and non-
>> jta datasource. I guess if you aren't using jta transactions at
>> all you might be able to use just a non-jta-data-source, but I
>> haven't tried this.
>>
>> thanks
>> david jencks
>>
>> On Feb 12, 2010, at 6:53 AM, Alexandros Karypidis wrote:
>>
>>> Hello,
>>>
>>> My scenario is this:
>>>
>>> I have a library with entities (as in @Entity objects) containing
>>> my domain model. I want to declare a container-managed persistence
>>> unit in a standalone WAR (not EAR), using that library (the
>>> persistence.xml must NOT be in the library, but the WAR). So, I
>>> proceed as follows (this is valid as far as I know, base on J2EE5
>>> specs):
>>>
>>> 1) I have declared a data source in geronimo-web.xml and web.xml
>>> (see below for file contents).
>>> 2) I put my library (as a jar) in my WAR's WEB-INF/lib and added a
>>> WEB-INF/classes/META-INF/persistence.xml in the WAR (see below for
>>> file contents).
>>>
>>> Deployment after performing step (1) worked and I could see the
>>> data source registered in the console.
>>>
>>> Deployment after performing step (2) fails; from what I understand
>>> from the error (see below), geronimo claims the data-source from
>>> step (1) does not exist. I assume that geronimo tries to create
>>> the persistence context prior to registering the data source?
>>> (i.e. it processes persistence.xml prior to apply the
>>> configuration from web.xml and geronimo-web.xml).
>>>
>>> What do I need to configure this properly. My deployment
>>> descriptors and the error trace follow:
>>>
>>> persistence.xml
>>> -------------------------------------------------------------------------------------------------------------------------------------------------
>>> <?xml version="1.0" encoding="UTF-8"?>
>>> <persistence
>>> 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_1_0.xsd"
>>> version="1.0">
>>> <persistence-unit name="appPersistenceUnit" transaction-type="JTA">
>>> <jta-data-source>jdbc/AppDataSource</jta-data-source>
>>> <jar-file>app-entities.jar</jar-file>
>>> </persistence-unit>
>>> </persistence>
>>>
>>>
>>> web.xml
>>> -------------------------------------------------------------------------------------------------------------------------------------------------
>>> <?xml version="1.0" encoding="UTF-8"?>
>>> <web-app
>>> xmlns="http://java.sun.com/xml/ns/j2ee"
>>> xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
>>> xsi:schemaLocation="
>>> http://java.sun.com/xml/ns/j2ee
>>> http://java.sun.com/xml/ns/j2ee/web-app_2_5.xsd"
>>> version="2.4">
>>>
>>> <display-name>App</display-name>
>>>
>>> <!-- Unrelated Spring contextListener and Wicket filter
>>> configuration here
>>> have been supresed -->
>>>
>>> <resource-ref>
>>> <res-ref-name>jdbc/AppDataSource</res-ref-name>
>>> <res-type>javax.sql.DataSource</res-type>
>>> <res-auth>Container</res-auth>
>>> <res-sharing-scope>Shareable</res-sharing-scope>
>>> </resource-ref>
>>> <!--
>>> Ultimately I want to do this, but I can't get persistence.xml to
>>> work...
>>> <persistence-unit-ref>
>>> <persistence-unit-ref-name>persistence/appPersistenceUnit</
>>> persistence-unit-ref-name>
>>> <persistence-unit-name>appPersistenceUnit</persistence-unit-name>
>>> </persistence-unit-ref>
>>> -->
>>> </web-app>
>>>
>>>
>>> geronimo-web.xml
>>> -------------------------------------------------------------------------------------------------------------------------------------------------
>>> <?xml version="1.0" encoding="UTF-8"?>
>>> <web-app xmlns="http://geronimo.apache.org/xml/ns/j2ee/web-2.0.1"
>>> xmlns:naming="http://geronimo.apache.org/xml/ns/naming-1.2"
>>> xmlns:sec="http://geronimo.apache.org/xml/ns/security-2.0"
>>> xmlns:sys="http://geronimo.apache.org/xml/ns/deployment-1.2">
>>>
>>> <sys:environment>
>>> <sys:moduleId>
>>> <sys:groupId>app</sys:groupId>
>>> <sys:artifactId>app-frontend</sys:artifactId>
>>> <sys:version>0.0.1</sys:version>
>>> <sys:type>car</sys:type>
>>> </sys:moduleId>
>>> <sys:dependencies>
>>> <!-- Need the embedded Derby -->
>>> <sys:dependency>
>>> <sys:groupId>org.apache.geronimo.configs</sys:groupId>
>>> <sys:artifactId>
>>> system-database
>>> </sys:artifactId>
>>> </sys:dependency>
>>> </sys:dependencies>
>>> </sys:environment>
>>>
>>> <context-root>/app</context-root>
>>>
>>> <!-- Ultimately, I want to register the PU in JNDI,
>>> but persistence.xml does not work
>>> <naming:persistence-unit-ref>
>>> <naming:persistence-unit-ref-name>persistence/appPersistenceUnit</
>>> naming:persistence-unit-ref-name>
>>> <naming:persistence-unit-name>persistence/appPersistenceUnit</
>>> naming:persistence-unit-name>
>>> </naming:persistence-unit-ref>
>>> -->
>>>
>>> <naming:resource-ref>
>>> <naming:ref-name>jdbc/AppDataSource</naming:ref-name>
>>> <naming:resource-link>SystemDatasource</naming:resource-link>
>>> </naming:resource-ref>
>>> </web-app>
>>>
>>> __________________________________________________
>>> Χρησιμοποιείτε Yahoo!;
>>> Βαρεθήκατε τα ενοχλητικά μηνύματα
>>> (spam); Το Yahoo! Mail διαθέτει την καλύτερη
>>> δυνατή προστασία κατά των
>>> ενοχλητικών μηνυμάτων
>>> http://mail.yahoo.gr
>>
>
>
Re: Container-managed JPA in pure WAR with JNDI
Posted by Alexandros Karypidis <ak...@yahoo.gr>.
Hello David,
Thanks for helping out. Following yout e-mail:
1) I've fixed the problem by using "SystemDatasource" (not
SystemDatabse) as the name.
2) I don't really care whether Geronimo uses JNDI or not internally. I
need to register the JPA persistence context in my web application's
JNDI context, as I am using Spring which expects to be able to look it
up via JNDI (using <jee:jndi-lookup .../> if you're familiar with
Spring). So I need the reference in web.xml for my own purposes. Anyway,
it works now so this has been resolved.
3) I don't really intend to use Derby; I was just taking things
step-by-step. Having said that, how do I define my own datasource in
Geronimo? For example, in JBoss you use a "somename-ds.xml" file to
register a datasource.
On 12/2/2010 8:20 μμ, David Jencks wrote:
> Geronimo doesn't use jndi for the datasources in persistence.xml. You
> don't need to configure resource-refs for the datasources. You do
> need to make sure they are in ancestor plugins to the app and that you
> use the name from the datasource configuration. In this case I think
> that would be
> <jta-data-source>SystemDatabase</jta-data-source>
>
> In my experience, at least with derby, you need both jta and non-jta
> datasource. I guess if you aren't using jta transactions at all you
> might be able to use just a non-jta-data-source, but I haven't tried
> this.
>
> thanks
> david jencks
>
> On Feb 12, 2010, at 6:53 AM, Alexandros Karypidis wrote:
>
>> Hello,
>>
>> My scenario is this:
>>
>> I have a library with entities (as in @Entity objects) containing my
>> domain model. I want to declare a container-managed persistence unit
>> in a standalone WAR (not EAR), using that library (the
>> persistence.xml must NOT be in the library, but the WAR). So, I
>> proceed as follows (this is valid as far as I know, base on J2EE5
>> specs):
>>
>> 1) I have declared a data source in geronimo-web.xml and web.xml (see
>> below for file contents).
>> 2) I put my library (as a jar) in my WAR's WEB-INF/lib and added a
>> WEB-INF/classes/META-INF/persistence.xml in the WAR (see below for
>> file contents).
>>
>> Deployment after performing step (1) worked and I could see the data
>> source registered in the console.
>>
>> Deployment after performing step (2) fails; from what I understand
>> from the error (see below), geronimo claims the data-source from step
>> (1) does not exist. I assume that geronimo tries to create the
>> persistence context prior to registering the data source? (i.e. it
>> processes persistence.xml prior to apply the configuration from
>> web.xml and geronimo-web.xml).
>>
>> What do I need to configure this properly. My deployment descriptors
>> and the error trace follow:
>>
>> persistence.xml
>> -------------------------------------------------------------------------------------------------------------------------------------------------
>>
>> <?xml version="1.0" encoding="UTF-8"?>
>> <persistence
>> 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_1_0.xsd"
>> version="1.0">
>> <persistence-unit name="appPersistenceUnit" transaction-type="JTA">
>> <jta-data-source>jdbc/AppDataSource</jta-data-source>
>> <jar-file>app-entities.jar</jar-file>
>> </persistence-unit>
>> </persistence>
>>
>>
>> web.xml
>> -------------------------------------------------------------------------------------------------------------------------------------------------
>>
>> <?xml version="1.0" encoding="UTF-8"?>
>> <web-app
>> xmlns="http://java.sun.com/xml/ns/j2ee"
>> xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
>> xsi:schemaLocation="
>> http://java.sun.com/xml/ns/j2ee
>> http://java.sun.com/xml/ns/j2ee/web-app_2_5.xsd"
>> version="2.4">
>>
>> <display-name>App</display-name>
>>
>> <!-- Unrelated Spring contextListener and Wicket filter configuration
>> here
>> have been supresed -->
>>
>> <resource-ref>
>> <res-ref-name>jdbc/AppDataSource</res-ref-name>
>> <res-type>javax.sql.DataSource</res-type>
>> <res-auth>Container</res-auth>
>> <res-sharing-scope>Shareable</res-sharing-scope>
>> </resource-ref>
>> <!--
>> Ultimately I want to do this, but I can't get persistence.xml to
>> work...
>> <persistence-unit-ref>
>> <persistence-unit-ref-name>persistence/appPersistenceUnit</persistence-unit-ref-name>
>>
>> <persistence-unit-name>appPersistenceUnit</persistence-unit-name>
>> </persistence-unit-ref>
>> -->
>> </web-app>
>>
>>
>> geronimo-web.xml
>> -------------------------------------------------------------------------------------------------------------------------------------------------
>>
>> <?xml version="1.0" encoding="UTF-8"?>
>> <web-app xmlns="http://geronimo.apache.org/xml/ns/j2ee/web-2.0.1"
>> xmlns:naming="http://geronimo.apache.org/xml/ns/naming-1.2"
>> xmlns:sec="http://geronimo.apache.org/xml/ns/security-2.0"
>> xmlns:sys="http://geronimo.apache.org/xml/ns/deployment-1.2">
>>
>> <sys:environment>
>> <sys:moduleId>
>> <sys:groupId>app</sys:groupId>
>> <sys:artifactId>app-frontend</sys:artifactId>
>> <sys:version>0.0.1</sys:version>
>> <sys:type>car</sys:type>
>> </sys:moduleId>
>> <sys:dependencies>
>> <!-- Need the embedded Derby -->
>> <sys:dependency>
>> <sys:groupId>org.apache.geronimo.configs</sys:groupId>
>> <sys:artifactId>
>> system-database
>> </sys:artifactId>
>> </sys:dependency>
>> </sys:dependencies>
>> </sys:environment>
>>
>> <context-root>/app</context-root>
>>
>> <!-- Ultimately, I want to register the PU in JNDI,
>> but persistence.xml does not work
>> <naming:persistence-unit-ref>
>> <naming:persistence-unit-ref-name>persistence/appPersistenceUnit</naming:persistence-unit-ref-name>
>>
>> <naming:persistence-unit-name>persistence/appPersistenceUnit</naming:persistence-unit-name>
>>
>> </naming:persistence-unit-ref>
>> -->
>>
>> <naming:resource-ref>
>> <naming:ref-name>jdbc/AppDataSource</naming:ref-name>
>> <naming:resource-link>SystemDatasource</naming:resource-link>
>> </naming:resource-ref>
>> </web-app>
>>
>> __________________________________________________
>> Χρησιμοποιείτε Yahoo!;
>> Βαρεθήκατε τα ενοχλητικά μηνύματα (spam); Το Yahoo! Mail διαθέτει
>> την καλύτερη δυνατή προστασία κατά των ενοχλητικών μηνυμάτων
>> http://mail.yahoo.gr
>
Re: Container-managed JPA in pure WAR with JNDI
Posted by David Jencks <da...@yahoo.com>.
Geronimo doesn't use jndi for the datasources in persistence.xml. You
don't need to configure resource-refs for the datasources. You do
need to make sure they are in ancestor plugins to the app and that you
use the name from the datasource configuration. In this case I think
that would be
<jta-data-source>SystemDatabase</jta-data-source>
In my experience, at least with derby, you need both jta and non-jta
datasource. I guess if you aren't using jta transactions at all you
might be able to use just a non-jta-data-source, but I haven't tried
this.
thanks
david jencks
On Feb 12, 2010, at 6:53 AM, Alexandros Karypidis wrote:
> Hello,
>
> My scenario is this:
>
> I have a library with entities (as in @Entity objects) containing my
> domain model. I want to declare a container-managed persistence unit
> in a standalone WAR (not EAR), using that library (the
> persistence.xml must NOT be in the library, but the WAR). So, I
> proceed as follows (this is valid as far as I know, base on J2EE5
> specs):
>
> 1) I have declared a data source in geronimo-web.xml and web.xml
> (see below for file contents).
> 2) I put my library (as a jar) in my WAR's WEB-INF/lib and added a
> WEB-INF/classes/META-INF/persistence.xml in the WAR (see below for
> file contents).
>
> Deployment after performing step (1) worked and I could see the data
> source registered in the console.
>
> Deployment after performing step (2) fails; from what I understand
> from the error (see below), geronimo claims the data-source from
> step (1) does not exist. I assume that geronimo tries to create the
> persistence context prior to registering the data source? (i.e. it
> processes persistence.xml prior to apply the configuration from
> web.xml and geronimo-web.xml).
>
> What do I need to configure this properly. My deployment descriptors
> and the error trace follow:
>
> persistence.xml
> -------------------------------------------------------------------------------------------------------------------------------------------------
> <?xml version="1.0" encoding="UTF-8"?>
> <persistence
> 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_1_0.xsd"
> version="1.0">
> <persistence-unit name="appPersistenceUnit" transaction-type="JTA">
> <jta-data-source>jdbc/AppDataSource</jta-data-source>
> <jar-file>app-entities.jar</jar-file>
> </persistence-unit>
> </persistence>
>
>
> web.xml
> -------------------------------------------------------------------------------------------------------------------------------------------------
> <?xml version="1.0" encoding="UTF-8"?>
> <web-app
> xmlns="http://java.sun.com/xml/ns/j2ee"
> xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
> xsi:schemaLocation="
> http://java.sun.com/xml/ns/j2ee
> http://java.sun.com/xml/ns/j2ee/web-app_2_5.xsd"
> version="2.4">
>
> <display-name>App</display-name>
>
> <!-- Unrelated Spring contextListener and Wicket filter
> configuration here
> have been supresed -->
>
> <resource-ref>
> <res-ref-name>jdbc/AppDataSource</res-ref-name>
> <res-type>javax.sql.DataSource</res-type>
> <res-auth>Container</res-auth>
> <res-sharing-scope>Shareable</res-sharing-scope>
> </resource-ref>
> <!--
> Ultimately I want to do this, but I can't get persistence.xml to
> work...
> <persistence-unit-ref>
> <persistence-unit-ref-name>persistence/appPersistenceUnit</
> persistence-unit-ref-name>
> <persistence-unit-name>appPersistenceUnit</persistence-unit-
> name>
> </persistence-unit-ref>
> -->
> </web-app>
>
>
> geronimo-web.xml
> -------------------------------------------------------------------------------------------------------------------------------------------------
> <?xml version="1.0" encoding="UTF-8"?>
> <web-app xmlns="http://geronimo.apache.org/xml/ns/j2ee/web-2.0.1"
> xmlns:naming="http://geronimo.apache.org/xml/ns/naming-1.2"
> xmlns:sec="http://geronimo.apache.org/xml/ns/security-2.0"
> xmlns:sys="http://geronimo.apache.org/xml/ns/deployment-1.2">
>
> <sys:environment>
> <sys:moduleId>
> <sys:groupId>app</sys:groupId>
> <sys:artifactId>app-frontend</sys:artifactId>
> <sys:version>0.0.1</sys:version>
> <sys:type>car</sys:type>
> </sys:moduleId>
> <sys:dependencies>
> <!-- Need the embedded Derby -->
> <sys:dependency>
> <sys:groupId>org.apache.geronimo.configs</sys:groupId>
> <sys:artifactId>
> system-database
> </sys:artifactId>
> </sys:dependency>
> </sys:dependencies>
> </sys:environment>
>
> <context-root>/app</context-root>
>
> <!-- Ultimately, I want to register the PU in JNDI,
> but persistence.xml does not work
> <naming:persistence-unit-ref>
> <naming:persistence-unit-ref-name>persistence/
> appPersistenceUnit</naming:persistence-unit-ref-name>
> <naming:persistence-unit-name>persistence/appPersistenceUnit</
> naming:persistence-unit-name>
> </naming:persistence-unit-ref>
> -->
>
> <naming:resource-ref>
> <naming:ref-name>jdbc/AppDataSource</naming:ref-name>
> <naming:resource-link>SystemDatasource</naming:resource-link>
> </naming:resource-ref>
> </web-app>
>
> __________________________________________________
> Χρησιμοποιείτε Yahoo!;
> Βαρεθήκατε τα ενοχλητικά μηνύματα
> (spam); Το Yahoo! Mail διαθέτει την καλύτερη
> δυνατή προστασία κατά των
> ενοχλητικών μηνυμάτων
> http://mail.yahoo.gr