JBossDeveloper

I installed the MySQL driver as deployment.

Database Name: test

I tried to setup a Non-XA MySQL datasource as follows:

Name: test

JNDI Name: java:/jboss/datasources/test

In detected drivers I had 2 options:

(1) mysql-connector-java-5.1.39-bin.jar_com.mysql.jdbc.Driver_5_1

(2) mysql-connector-java-5.1.39-bin.jar_com.mysql.fabric.jdbc.FabricMySQLDriver_5

I chose (1). What's the difference between them?

Connection URL: jdbc:mysql://localhost/test

I'm not entirely sure what should be in connection url, I just set it to localhost/db_name.

In "Test Connection" it fails to create a JDBC connection:

Unexpected HTTP response: 500

 

Request

{

    "name" => "test",

    "enabled" => true,

    "jndi-name" => "java:/jboss/datasources/test",

    "user-name" => "root",

    "pool-name" => "test_Pool",

    "use-ccm" => false,

    "jta" => false,

    "connection-url" => "jdbc:mysql://localhost/test",

    "driver-class" => "com.mysql.jdbc.Driver",

    "driver-name" => "mysql-connector-java-5.1.39-bin.jar_com.mysql.jdbc.Driver_5_1",

    "valid-connection-checker-class-name" => "org.jboss.jca.adapters.jdbc.extensions.mysql.MySQLValidConnectionChecker",

    "background-validation" => true,

    "exception-sorter-class-name" => "org.jboss.jca.adapters.jdbc.extensions.mysql.MySQLExceptionSorter",

    "operation" => "add",

    "address" => [

        ("subsystem" => "datasources"),

        ("data-source" => "test")

    ]

}

 

 

Response

 

 

Internal Server Error

{

    "outcome" => "failed",

    "failure-description" => "WFLYCTL0212: Duplicate resource [

    (\"subsystem\" => \"datasources\"),

    (\"data-source\" => \"test\")

]",

    "rolled-back" => true

}

I tried following the advice in:

java - Duplicate resource Wildfly - Stack Overflow

Both removing the duplicate resource from standlone.xml and renaming the current datasource I'm adding didn't work and result in the exact same error.

I didn't find any < app >.war.failed files to delete.

I successfully created a datasource, I needed to specify the port.

When I try to test my project, NullPointerException is still thrown.

Here's my persistence.xml:

<?xml version="1.0" encoding="UTF-8"?>


<persistence version="2.1" xmlns="http://xmlns.jcp.org/xml/ns/persistence"
           xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
           xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/persistence http://xmlns.jcp.org/xml/ns/persistence/persistence_2_1.xsd">

  <persistence-unit name="Hibernate_JPA" transaction-type="JTA">

    <jta-data-source>java:/jboss/datasources/test</jta-data-source>
    <exclude-unlisted-classes>false</exclude-unlisted-classes>
   
    <!--   <class>entities.User</class> -->
   
  <properties/>
   
  </persistence-unit>

</persistence>

If I un-comment <class>entities.User</class> I get an error:

cvc-complex-type.2.4.a: Invalid content was found starting with element 'class'. One of '{"http://xmlns.jcp.org/xml/ns/persistence":shared-cache-mode, "http://xmlns.jcp.org/

xml/ns/persistence":validation-mode, "http://xmlns.jcp.org/xml/ns/persistence":properties}' is expected.

I see, I removed the class element.

Is using the @Stateless annotation a must for this to work properly? I'd like to be able to have instances of this class.

With that said, I tried now adding the @Stateless annotation to my Users class.

I try to inject Users into a field in my REST application using the @EJB annotation, this results in errors.

Page.java

import javax.ejb.EJB;
import javax.ws.rs.GET;
import javax.ws.rs.Path;
import javax.ws.rs.Produces;
import entities.Users;

@Path("/")
public class Page {

  @EJB(beanName="UsersBean")
  Users users;

    @GET
    @Path("/page")
    @Produces({ "application/json" })
    public String getHiJSON() {
         return "{\"name\":\"" + users.getUserName() + "\"}";
    }

}

This is the log I get in the console:

16:40:55,917 INFO  [org.jboss.as.server.deployment] (MSC service thread 1-3) WFLYSRV0028: Stopped deployment rest-test.war (runtime-name: rest-test.war) in 3ms

16:40:55,917 INFO  [org.jboss.as.server.deployment] (MSC service thread 1-4) WFLYSRV0027: Starting deployment of "rest-test.war" (runtime-name: "rest-test.war")

16:40:55,939 INFO  [org.jboss.weld.deployer] (MSC service thread 1-8) WFLYWELD0003: Processing weld deployment rest-test.war

16:40:55,946 INFO  [org.jboss.as.ejb3.deployment] (MSC service thread 1-8) WFLYEJB0473: JNDI bindings for session bean named 'Users' in deployment unit 'deployment "rest-test.war"' are as follows:

 

 

  java:global/rest-test/Users!entities.Users

  java:app/rest-test/Users!entities.Users

  java:module/Users!entities.Users

  java:global/rest-test/Users

  java:app/rest-test/Users

  java:module/Users

 

 

16:40:55,976 ERROR [org.jboss.msc.service.fail] (MSC service thread 1-2) MSC000001: Failed to start service jboss.deployment.unit."rest-test.war".INSTALL: org.jboss.msc.service.StartException in service jboss.deployment.unit."rest-test.war".INSTALL: WFLYSRV0153: Failed to process phase INSTALL of deployment "rest-test.war"

  at org.jboss.as.server.deployment.DeploymentUnitPhaseService.start(DeploymentUnitPhaseService.java:154)

  at org.jboss.msc.service.ServiceControllerImpl$StartTask.startService(ServiceControllerImpl.java:1948)

  at org.jboss.msc.service.ServiceControllerImpl$StartTask.run(ServiceControllerImpl.java:1881)

  at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)

  at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)

  at java.lang.Thread.run(Unknown Source)

Caused by: org.jboss.as.server.deployment.DeploymentUnitProcessingException: WFLYEE0041: Component class entities.Users for component Users has errors:

WFLYJPA0033: Can't find a persistence unit named null in deployment "rest-test.war"

  at org.jboss.as.ee.component.deployers.ModuleJndiBindingProcessor$1.handle(ModuleJndiBindingProcessor.java:157)

  at org.jboss.as.ee.component.ClassDescriptionTraversal.run(ClassDescriptionTraversal.java:54)

  at org.jboss.as.ee.component.deployers.ModuleJndiBindingProcessor.processClassConfigurations(ModuleJndiBindingProcessor.java:186)

  at org.jboss.as.ee.component.deployers.ModuleJndiBindingProcessor.deploy(ModuleJndiBindingProcessor.java:143)

  at org.jboss.as.server.deployment.DeploymentUnitPhaseService.start(DeploymentUnitPhaseService.java:147)

  ... 5 more

 

 

16:40:55,978 ERROR [org.jboss.as.controller.management-operation] (DeploymentScanner-threads - 2) WFLYCTL0013: Operation ("full-replace-deployment") failed - address: ([]) - failure description: {

    "WFLYCTL0080: Failed services" => {"jboss.deployment.unit.\"rest-test.war\".INSTALL" => "org.jboss.msc.service.StartException in service jboss.deployment.unit.\"rest-test.war\".INSTALL: WFLYSRV0153: Failed to process phase INSTALL of deployment \"rest-test.war\"

    Caused by: org.jboss.as.server.deployment.DeploymentUnitProcessingException: WFLYEE0041: Component class entities.Users for component Users has errors:

WFLYJPA0033: Can't find a persistence unit named null in deployment \"rest-test.war\""},

    "WFLYCTL0180: Services with missing/unavailable dependencies" => [

        "jboss.deployment.unit.\"rest-test.war\".batch.environment is missing [jboss.deployment.unit.\"rest-test.war\".beanmanager]",

        "jboss.deployment.unit.\"rest-test.war\".weld.weldClassIntrospector is missing [jboss.deployment.unit.\"rest-test.war\".beanmanager]"

    ]

}

16:40:56,013 INFO  [org.jboss.as.server] (DeploymentScanner-threads - 2) WFLYSRV0016: Replaced deployment "rest-test.war" with deployment "rest-test.war"

16:40:56,013 INFO  [org.jboss.as.controller] (DeploymentScanner-threads - 2) WFLYCTL0183: Service status report

WFLYCTL0186:   Services which failed to start:      service jboss.deployment.unit."rest-test.war".INSTALL

      service jboss.deployment.unit."rest-test.war".INSTALL: org.jboss.msc.service.StartException in service jboss.deployment.unit."rest-test.war".INSTALL: WFLYSRV0153: Failed to process phase INSTALL of deployment "rest-test.war"

Is it possible to accomplish it without using stateless EJBs?

Am I not following the specs? Could you please help me see what I'm doing wrong?

I read chapter 8.2 - I tried following this point:

-the WEB-INF/classes directory of a WAR file

since my WEB-INF directory didn't contain a classes directory, I manually created a classes directory and placed inside a copy of persistence.xml. I must say I'm not entirely sure I know what I'm doing.

I also placed a copy of persistence.xml in WebContent/META-INF according to:

http://stackoverflow.com/questions/8276166/eclipselink-jpa-location-of-persistence-xml

In my case the folder name is META-INF but its path is not /src/main/resources/META-INF.

In addition I tried placing persistence.xml in other random places as shown in the screenshot, hoping one of them would hit the mark. It still doesn't work.

I will, thanks for the detailed answer.

Here's how my war is packaged - I couldn't find a way to display the war content in a tree view like you did so I did it manually:

rest-test.war

• META-INF
  • MANIFEST.MF
  • persistence.xml
• WEB-INF
  • classes
    • entities
      • User.class
      • Users.class
    • JAXActivator.class
    • MyService.class
    • Page.class
    • persistence.xml
  • lib
  • web.xml
• index.html

I understand. Where should I place persistence.xml in my source so that it'd appear in the WEB-INF/classes directory of the WAR file? Or am I expected to manually place it in the WAR file?

I'm not using not Ant and not Maven (as far as I know), my IDE is Eclipse.

According to the link below I need to configure it via Project->Properties->Build Path - I have no idea what I should actually do there.

Another comment suggests I should place it in src/META-INF which doesn't exist (perhaps because of my project type), what I do have is Web Content/META-INF, where I did place my persistence.xml and still it doesn't appear in the right place in the compiled war.

jpa - Persistence.xml where to put in eclipse project - Stack Overflow