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      Description

      I am using the following application deployment descriptor:

      <?xml version="1.0" encoding="UTF-8"?>
      <application 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/application_1_4.xsd"
      version="1.4">

      <display-name>eduproj1</display-name>
      <module>
      <ejb>eduproj-ejb.jar</ejb>
      </module>
      <module>
      <web>
      <web-uri>eduproj.war</web-uri>
      <context-root>edu</context-root>
      </web>
      </module>

      </application>

      When my application is deployed, everything is fine:

      ...
      22:33:19,987 INFO [Server] JBoss (MX MicroKernel) [4.0.1sp1 (build: CVSTag=JBos
      s_4_0_1_SP1 date=200502160314)] Started in 17s:465ms
      22:33:24,844 INFO [EARDeployer] Init J2EE application: file:/C:/jboss-4.0.1sp1/
      server/default/deploy/eduproj.ear
      22:33:25,265 INFO [EjbModule] Deploying TheUser
      22:33:25,405 INFO [EJBDeployer] Deployed: file:/C:/jboss-4.0.1sp1/server/defaul
      t/tmp/deploy/tmp23151eduproj.ear-contents/eduproj-ejb.jar
      22:33:25,445 INFO [TomcatDeployer] deploy, ctxPath=/edu, warUrl=file:/C:/jboss-
      4.0.1sp1/server/default/tmp/deploy/tmp23151eduproj.ear-contents/eduproj-exp.war/

      22:33:25,535 INFO [EARDeployer] Started J2EE application: file:/C:/jboss-4.0.1s
      p1/server/default/deploy/eduproj.ear

      But when I remove the <display-name>eduproj1</display-name> element from the
      deployment descriptor:

      <?xml version="1.0" encoding="UTF-8"?>
      <application 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/application_1_4.xsd"
      version="1.4">

      <!-- <display-name>eduproj1</display-name> -->
      <module>
      <ejb>eduproj-ejb.jar</ejb>
      </module>
      <module>
      <web>
      <web-uri>eduproj.war</web-uri>
      <context-root>edu</context-root>
      </web>
      </module>

      </application>

      I get the following error:

      ...
      23:07:45,357 INFO [Server] JBoss (MX MicroKernel) [4.0.1sp1 (build: CVSTag=JBos
      s_4_0_1_SP1 date=200502160314)] Started in 14s:201ms
      23:07:50,214 INFO [EARDeployer] Init J2EE application: file:/C:/jboss-4.0.1sp1/
      server/default/deploy/eduproj.ear
      23:07:50,234 ERROR [MainDeployer] Could not initialise deployment: file:/C:/jbos
      s-4.0.1sp1/server/default/deploy/eduproj.ear
      org.jboss.deployment.DeploymentException: expected one display-name tag
      at org.jboss.metadata.MetaData.getUniqueChild(MetaData.java:98)
      at org.jboss.deployment.J2eeApplicationMetaData.importApplicationXml(J2e
      eApplicationMetaData.java:135)
      at org.jboss.deployment.J2eeApplicationMetaData.importXml(J2eeApplicatio
      nMetaData.java:121)
      at org.jboss.deployment.EARDeployer.init(EARDeployer.java:127)
      at org.jboss.deployment.MainDeployer.init(MainDeployer.java:828)
      at org.jboss.deployment.MainDeployer.deploy(MainDeployer.java:765)
      at org.jboss.deployment.MainDeployer.deploy(MainDeployer.java:738)
      at sun.reflect.GeneratedMethodAccessor48.invoke(Unknown Source)
      at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAcces
      sorImpl.java:25)
      at java.lang.reflect.Method.invoke(Method.java:324)
      at org.jboss.mx.interceptor.ReflectedDispatcher.invoke(ReflectedDispatch
      er.java:144)
      at org.jboss.mx.server.Invocation.dispatch(Invocation.java:80)
      at org.jboss.mx.interceptor.AbstractInterceptor.invoke(AbstractIntercept
      or.java:122)
      at org.jboss.mx.server.Invocation.invoke(Invocation.java:74)
      at org.jboss.mx.interceptor.ModelMBeanOperationInterceptor.invoke(ModelM
      BeanOperationInterceptor.java:131)
      at org.jboss.mx.server.Invocation.invoke(Invocation.java:74)
      at org.jboss.mx.server.AbstractMBeanInvoker.invoke(AbstractMBeanInvoker.
      java:249)
      at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:642)
      at org.jboss.mx.util.MBeanProxyExt.invoke(MBeanProxyExt.java:177)
      at $Proxy8.deploy(Unknown Source)
      at org.jboss.deployment.scanner.URLDeploymentScanner.deploy(URLDeploymen
      tScanner.java:305)
      at org.jboss.deployment.scanner.URLDeploymentScanner.scan(URLDeploymentS
      canner.java:481)
      at org.jboss.deployment.scanner.AbstractDeploymentScanner$ScannerThread.
      doScan(AbstractDeploymentScanner.java:204)
      at org.jboss.deployment.scanner.AbstractDeploymentScanner$ScannerThread.
      loop(AbstractDeploymentScanner.java:215)
      at org.jboss.deployment.scanner.AbstractDeploymentScanner$ScannerThread.
      run(AbstractDeploymentScanner.java:194)

      On page 131 of the J2EE spec (j2ee-1_4-fr-spec.pdf) Figure J2EE.8-3 makes it
      clear that display-name must occur 1 or more times. This says that the error
      is expected.

      But the actual schema definition makes it clear that display-name may occur
      0 or more times.

      application_1_4.xsd (line 147-158):
      -----------------------------------
      <xsd:complexType name="applicationType">
      <xsd:annotation>
      <xsd:documentation>

      The applicationType defines the structure of the
      application.

      </xsd:documentation>
      </xsd:annotation>

      <xsd:sequence>
      <xsd:group ref="j2ee:descriptionGroup"/> <----- in j2ee_1_4.xsd

      j2ee_1_4.xsd (line 82-102):
      ---------------------------
      <xsd:group name="descriptionGroup">
      <xsd:annotation>
      <xsd:documentation>

      This group keeps the usage of the contained description related
      elements consistent across J2EE deployment descriptors.

      All elements may occur multiple times with different languages,
      to support localization of the content.

      </xsd:documentation>
      </xsd:annotation>
      <xsd:sequence>
      <xsd:element name="description"
      type="j2ee:descriptionType"
      minOccurs="0"
      maxOccurs="unbounded"/>
      <xsd:element name="display-name"
      type="j2ee:display-nameType"
      minOccurs="0" <-------- 0 or more
      maxOccurs="unbounded"/>

      I also checked out the previous application_1_3.dtd. This notes that
      display-name is a required element (1 and only 1):

      <!ELEMENT application (icon?, display-name, description?, module+,
      security-role*)>

      I found the behaviour of JBoss AS to be odd because prior to this error I
      believed that the description, display-name and icon deployment descriptor
      elements are used almost exclusively by IDE tools (ie. irrelevant to an app
      server).

      Therefore:
      j2ee-1_4-fr-spec.pdf Figure J2EE.8-3: 1 or more display-name
      application_1_4.xsd: 0 or more display-name
      application_1_3.dtd: 1 and only 1 display-name

      Is there any particular reason that JBoss requires the display-name element?
      Could there possibly be an error in the j2ee spec?
      Do I need to RTFM?

        Activity

        Hide
        Dimitris Andreadis
        added a comment -

        relax 'display-name' required in application.xml.

        According to j2ee_1_4.xsd display-name is minOccurs="0" to maxOccurs="unbounded"

        Show
        Dimitris Andreadis
        added a comment - relax 'display-name' required in application.xml. According to j2ee_1_4.xsd display-name is minOccurs="0" to maxOccurs="unbounded"

          People

          • Assignee:
            Dimitris Andreadis
            Reporter:
            costa t
          • Votes:
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            Watchers:
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            Dates

            • Created:
              Updated:
              Resolved: