Problem with environment entries in application.xml

[marcusportmann]

Hello,

I am using JBoss-6.0.0.Final.

I have a JEE 6 application where I am attempting to retrieve a java.lang.String environment entry (env-entry) specified in the EAR's application.xml file using the @Resource(lookup("...")) mechanism in a servlet.

I have tried all the different naming conventions shown below in the application.xml file but all of them result in a "NOT FOUND Depends on" error when instantiating the servlet with the @Resource annotated variable.

I have also tried to remove the annotations and dump the application's JNDI tree recursively but the environment entries are not present.

My question is: Should environment entries declared in the application.xml file be accessible to all WARs and EJB JARs that are contained in the EAR when using JEE 6?

  <env-entry>

    <env-entry-name>TestValue</env-entry-name>

    <env-entry-type>java.lang.String</env-entry-type>

    <env-entry-value>Hello World!</env-entry-value>

  </env-entry>

  <env-entry>

    <env-entry-name>java:app/TestValueApp</env-entry-name>

    <env-entry-type>java.lang.String</env-entry-type>

    <env-entry-value>Hello World!</env-entry-value>

  </env-entry>

  <env-entry>

    <env-entry-name>java:app/env/TestValueAppEnv</env-entry-name>

    <env-entry-type>java.lang.String</env-entry-type>

    <env-entry-value>Hello World!</env-entry-value>

  </env-entry>

  <env-entry>

    <env-entry-name>java:global/TestValueGlobal</env-entry-name>

    <env-entry-type>java.lang.String</env-entry-type>

    <env-entry-value>Hello World!</env-entry-value>

  </env-entry>

  <env-entry>

    <env-entry-name>java:global/env/TestValueGlobalEnv</env-entry-name>

    <env-entry-type>java.lang.String</env-entry-type>

    <env-entry-value>Hello World!</env-entry-value>

  </env-entry>

Regards,

Marcus

[ebross]

Hi Marcus,

Use of "<env-entry>" in application.xml is rare to find, but are you not missing the "lookup-name" entry?

Cheers.

[marcusportmann]

Hi Benjamin,

I have tried again with the following but none of the entries are being added to the JNDI.

  <env-entry>

    <env-entry-name>java:app/TestValueApp</env-entry-name>

    <env-entry-type>java.lang.String</env-entry-type>

    <env-entry-value>Hello World!</env-entry-value>

    <lookup-name>java:app/TestValueApp</lookup-name>

  </env-entry>

  <env-entry>

    <env-entry-name>java:app/env/TestValueAppEnv</env-entry-name>

    <env-entry-type>java.lang.String</env-entry-type>

    <env-entry-value>Hello World!</env-entry-value>

    <lookup-name>java:app/env/TestValueAppEnv</lookup-name>

  </env-entry>

  <env-entry>

    <env-entry-name>java:global/TestValueGlobal</env-entry-name>

    <env-entry-type>java.lang.String</env-entry-type>

    <env-entry-value>Hello World!</env-entry-value>

    <lookup-name>java:global/TestValueGlobal</lookup-name>

  </env-entry>

  <env-entry>

    <env-entry-name>java:global/env/TestValueGlobalEnv</env-entry-name>

    <env-entry-type>java.lang.String</env-entry-type>

    <env-entry-value>Hello World!</env-entry-value>

    <lookup-name>java:global/env/TestValueGlobalEnv</lookup-name>

  </env-entry>

Regards,

Marcus

[ebross]

Hi Marcus,

Have you tried either [A] or [B] below:

<env-entry>

    <env-entry-name>java:app/env/TestValueApp</env-entry-name>

    <env-entry-type>java.lang.String</env-entry-type>

    <env-entry-value>Hello World!</env-entry-value>

  </env-entry>

[A]

String valueApp = (String)InitialContext.doLookup("java:app/env/TestValueApp");

[B]

@Resource(name="java:app/env/TestValueApp")

private String valueApp;

Cheers

[mp911de]

Hi Marcus,

according to Sun/Oracle specs following Example should create an Entry that can be looked up with "java:comp/env/greetings"

<env-entry>

<description>welcome message</description>

<env-entry-name>greetings</env-entry-name>

<env-entry-type>java.lang.String</env-entry-type>

<env-entry-value>Welcome to the Inventory Control

                           System</env-entry-value>

</env-entry>

In case that JBoss really does not add any Entries, check whether JBoss' processes/ignores your application.xml

See http://java.sun.com/developer/technicalArticles/xml/WebAppDev4/ for further Information.

Best regards,

Mark

[marcusportmann]

Hi Benjamin,

When trying option [A] I get a NameNotFoundException on the (env) component of the name.

When trying option [B] the value for the valueApp variable is null. This occurs when I use option [B] in a ServletContextListener and in a HttpServlet.

If I move the env-entry declaration to the web.xml file then option [A] works both in a ServletContextListener and in a HttpServlet but option [B] is still null in both instances.

Regards,

Marcus

[marcusportmann]

Hi Mark,

I have tested your example, i.e. dropping the java:app prefix (using greetings as the env-entry-name), and what I found is that I get a NameNotFoundException when the env-entry is in the application.xml file but if I move it to the web.xml file then the InitialContext.doLookup approach works perfectly using the name (java:comp/env/greetings).

It appears as if the env-entry entries in the application.xml file are being ignored.

Regards,

Marcus

[marcusportmann]

Hi Benjamin,

I have done a bit more testing and I think I have discovered the reason why the @Resource annotation is not being correctly processed for my ServletContextListener and HttpServlet.

It is not related to whether the env-entry is declared in the application.xml or web.xml. Instead it seems to be as a result of my context listener and servlet being declared in another JAR which is included in my WAR. The servlets that form part of my WAR (under WEB-INF/classes) are being injected correctly when using the @Resource annotation. By correctly I mean that the injection works when then env-entry is declared in the web.xml file but I get a "NOT FOUND Depends" error when the env-entry is declared in the application.xml file.

Not sure whether I should open another discussion related to injection not working on web resources included from other JARs but referenced from the web.xml in a WAR.

Regards,

Marcus

[jaikiran]

Resource references and environment entries processing in application.xml isn't handled correctly in AS6. So yes this is a bug. I think there was a JIRA for this issue somewhere but I can't seem to locate it. Can you please create a JIRA here https://issues.jboss.org/browse/JBAS?