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jdbcwildflywildfly-10

How to deploy a JDBC Driver to Wildfly that can be used by WebApp

We are currently migrating from Tomcat to Wildfly 10 server. We like to take advantages of a Java EE Server. Currently we have some issues with the DataSource. We have deployed the JDBC Driver on Wildfly and set up the DataSource. That works mainly good, but we like to use DatabaseQueryNotification (Oracle) for database-side events.

Now the problem I run into:

When I package the Driver with my war (additionally), I get an ClassCastException because of mismatch of T4Connection and OracleConnection. Therefore I removed the JDBC-Driver from my War (maven -> scope: provided). But now my Application failed on Deployment, because of NoClassDefFound (see Stacktrace bellow).

How can I make sure that the JDBC Driver can be found by the application?

Java Snippet:

public class DBListener implements IDBListener, Runnable, DatabaseChangeListener, IPropertyListener, Serializable {  
     @Resource(lookup = "java:/PlsDS")  
     private DataSource dataSource;  
     ...  
     public void connectToDB(){
       Connection tmpCon = dataSource.getConnection();  
       connection = (OracleConnection) tmpCon.getMetaData().getConnection();  
       ...
     }
}

Stacktrace:

14:32:59,869 WARN  [org.jboss.modules] (MSC service thread 1-7) Failed to define class de.istec.pls.client.db.listener.DBListener in Module "deployment.client.pls-sc-1.0.0-SNAPSHOT.war:main" from Service Module Loader: java.lang.NoClassDefFoundError: Failed to link de/istec/pls/client/db/listener/DBListener (Module "deployment.client.pls-sc-1.0.0-SNAPSHOT.war:main" from Service Module Loader): oracle/jdbc/dcn/DatabaseChangeListener
    at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
    at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
    at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
    at java.lang.reflect.Constructor.newInstance(Constructor.java:422)
    at org.jboss.modules.ModuleClassLoader.defineClass(ModuleClassLoader.java:446)
    at org.jboss.modules.ModuleClassLoader.loadClassLocal(ModuleClassLoader.java:274)
    at org.jboss.modules.ModuleClassLoader$1.loadClassLocal(ModuleClassLoader.java:78)
    at org.jboss.modules.Module.loadModuleClass(Module.java:606)
    at org.jboss.modules.ModuleClassLoader.findClass(ModuleClassLoader.java:190)
    at org.jboss.modules.ConcurrentClassLoader.performLoadClassUnchecked(ConcurrentClassLoader.java:363)
    at org.jboss.modules.ConcurrentClassLoader.performLoadClass(ConcurrentClassLoader.java:351)
    at org.jboss.modules.ConcurrentClassLoader.loadClass(ConcurrentClassLoader.java:93)
    at org.wildfly.extension.undertow.deployment.ServletContainerInitializerDeploymentProcessor.loadClassInfoSet(ServletContainerInitializerDeploymentProcessor.java:259)
    at org.wildfly.extension.undertow.deployment.ServletContainerInitializerDeploymentProcessor.deploy(ServletContainerInitializerDeploymentProcessor.java:169)
    at org.jboss.as.server.deployment.DeploymentUnitPhaseService.start(DeploymentUnitPhaseService.java:147)
    at org.jboss.msc.service.ServiceControllerImpl$StartTask.startService(ServiceControllerImpl.java:1948)
    at org.jboss.msc.service.ServiceControllerImpl$StartTask.run(ServiceControllerImpl.java:1881)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
    at java.lang.Thread.run(Thread.java:745)

14:32:59,871 ERROR [org.jboss.msc.service.fail] (MSC service thread 1-7) MSC000001: Failed to start service jboss.deployment.unit."client.pls-sc-1.0.0-SNAPSHOT.war".INSTALL: org.jboss.msc.service.StartException in service jboss.deployment.unit."client.pls-sc-1.0.0-SNAPSHOT.war".INSTALL: WFLYSRV0153: Failed to process phase INSTALL of deployment "client.pls-sc-1.0.0-SNAPSHOT.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(ThreadPoolExecutor.java:1142)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
    at java.lang.Thread.run(Thread.java:745)

Caused by: java.lang.NoClassDefFoundError: Failed to link de/istec/pls/client/db/listener/DBListener (Module "deployment.client.pls-sc-1.0.0-SNAPSHOT.war:main" from Service Module Loader): oracle/jdbc/dcn/DatabaseChangeListener
    at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
    at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
    at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
    at java.lang.reflect.Constructor.newInstance(Constructor.java:422)
    at org.jboss.modules.ModuleClassLoader.defineClass(ModuleClassLoader.java:446)
    at org.jboss.modules.ModuleClassLoader.loadClassLocal(ModuleClassLoader.java:274)
    at org.jboss.modules.ModuleClassLoader$1.loadClassLocal(ModuleClassLoader.java:78)
    at org.jboss.modules.Module.loadModuleClass(Module.java:606)
    at org.jboss.modules.ModuleClassLoader.findClass(ModuleClassLoader.java:190)
    at org.jboss.modules.ConcurrentClassLoader.performLoadClassUnchecked(ConcurrentClassLoader.java:363)
    at org.jboss.modules.ConcurrentClassLoader.performLoadClass(ConcurrentClassLoader.java:351)
    at org.jboss.modules.ConcurrentClassLoader.loadClass(ConcurrentClassLoader.java:93)
    at org.wildfly.extension.undertow.deployment.ServletContainerInitializerDeploymentProcessor.loadClassInfoSet(ServletContainerInitializerDeploymentProcessor.java:259)
    at org.wildfly.extension.undertow.deployment.ServletContainerInitializerDeploymentProcessor.deploy(ServletContainerInitializerDeploymentProcessor.java:169)
    at org.jboss.as.server.deployment.DeploymentUnitPhaseService.start(DeploymentUnitPhaseService.java:147)
Solution

  • I have solved the Problem:

    1. I had to deploy the JDBC-Driver as a Module (see: http://hpehl.info/jdbc-driver-setup.html)
    2. I have to Export the needed oracle.jdbc.dcn* files, from module
    3. Insert the Dependency in the Manifest.MF file. (can be done by Maven, see below)

    module.xml

    <module xmlns="urn:jboss:module:1.1" name="com.oracle">
  <resources>
    <resource-root path="ojdbc7-12.1.0.2.jar"/>
  </resources>
  <dependencies>
    <system export="true">
        <paths>
            <path name="oracle/jdbc/OracleStatement"/>
            <path name="oracle/jdbc/dcn/DatabaseChangeEvent"/>
            <path name="oracle/jdbc/dcn/DatabaseChangeListener"/>
            <path name="oracle/jdbc/dcn/DatabaseChangeRegistration"/>
            <path name="oracle/jdbc/dcn/QueryChangeDescription"/>
            <path name="oracle/jdbc/dcn/RowChangeDescription"/>
        </paths>
    </system>
    <module name="javax.api"/>
    <module name="javax.transaction.api"/>
  </dependencies>
</module>

    pom.xml

    <plugin>
    <artifactId>maven-war-plugin</artifactId>
    <version>3.1.0</version>
    <configuration>
        <archive>
          <manifestEntries>
             <Dependencies>com.oracle</Dependencies>
          </manifestEntries>
        </archive>
    </configuration>
</plugin>