wildfly 10: java.lang.ClassCastException: org.dom4

Question

I have a maven application that works fine in wildfly 8.2, but when Ideployed it in wildfly 10 this error happened:

[2016-02-21 11:22:08,411] Artifact SaramadIssueTracking:war exploded: Error during artifact deployment. See server log for details.
[2016-02-21 11:22:08,411] Artifact SaramadIssueTracking:war exploded: java.lang.Exception: {"WFLYCTL0080: Failed services" =>
 {"jboss.persistenceunit.SaramadIssueTracking-1#SaramadIssueTracking" => "org.jboss.msc.service.StartException in service 
 jboss.persistenceunit.SaramadIssueTracking-1#SaramadIssueTracking: java.lang.ClassCastException: org.dom4j.DocumentFactory cannot be cast to org.dom4j.DocumentFactory
    Caused by: java.lang.ClassCastException: org.dom4j.DocumentFactory cannot be cast to org.dom4j.DocumentFactory"}}

I read this and there was no other dom4j library. I also read this and did it, but after removing dom4j, I got this error:

    [2016-02-21 01:46:38,384] Artifact SaramadIssueTracking:war exploded: Error during artifact deployment. See server log for details.
[2016-02-21 01:46:38,385] Artifact SaramadIssueTracking:war exploded: java.lang.Exception: {"WFLYCTL0080: Failed services" => {"jboss.undertow.deployment.default-server.default-host./" => "org.jboss.msc.service.StartException in service jboss.undertow.deployment.default-server.default-host./: java.lang.RuntimeException: java.lang.NullPointerException
    Caused by: java.lang.RuntimeException: java.lang.NullPointerException
    Caused by: java.lang.NullPointerException"}}

here is my pom.xml

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>

    <groupId>ir.farzanehfar</groupId>
    <artifactId>SaramadIssueTracking</artifactId>
    <version>1</version>
    <packaging>war</packaging>

    <name>SaramadIssueTracking</name>

    <properties>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
    </properties>

    <repositories>
        <repository>
            <id>SimpleCaptchaRepository</id>
            <url>http://repo.jfrog.org/artifactory/libs-releases/</url>
        </repository>
    </repositories>

    <dependencies>

        <dependency>
            <groupId>javax</groupId>
            <artifactId>javaee-web-api</artifactId>
            <version>7.0</version>
            <scope>provided</scope>
        </dependency>

        <dependency>
            <groupId>javax</groupId>
            <artifactId>javaee-api</artifactId>
            <version>7.0</version>
            <scope>provided</scope>
        </dependency>

        <dependency>
            <groupId>org.primefaces</groupId>
            <artifactId>primefaces</artifactId>
            <version>5.2</version>
        </dependency>

        <dependency>
            <groupId>org.primefaces.themes</groupId>
            <artifactId>all-themes</artifactId>
            <version>1.0.10</version>
        </dependency>

        <dependency>
            <groupId>org.primefaces.extensions</groupId>
            <artifactId>primefaces-extensions</artifactId>
            <version>3.1.0</version>
        </dependency>

        <dependency>
            <groupId>org.primefaces.extensions</groupId>
            <artifactId>resources-ckeditor</artifactId>
            <version>3.1.0</version>
        </dependency>

        <!-- for JPA, use hibernate-entitymanager instead of hibernate-core -->
        <dependency>
            <groupId>org.hibernate</groupId>
            <artifactId>hibernate-entitymanager</artifactId>
            <version>5.1.0.Final</version>
            <scope>provided</scope>
        </dependency>

        <dependency>
            <groupId>org.hibernate</groupId>
            <artifactId>hibernate-ehcache</artifactId>
            <version>5.1.0.Final</version>
        </dependency>

        <dependency>
            <groupId>junit</groupId>
            <artifactId>junit</artifactId>
            <version>3.8.1</version>
            <scope>test</scope>
        </dependency>

        <dependency>
            <groupId>commons-lang</groupId>
            <artifactId>commons-lang</artifactId>
            <version>2.6</version>
        </dependency>

        <dependency>
            <groupId>com.google.guava</groupId>
            <artifactId>guava</artifactId>
            <version>12.0</version>
        </dependency>

        <dependency>
            <groupId>joda-time</groupId>
            <artifactId>joda-time</artifactId>
            <version>2.1</version>
        </dependency>

        <dependency>
            <groupId>commons-fileupload</groupId>
            <artifactId>commons-fileupload</artifactId>
            <version>1.3</version>
        </dependency>

        <dependency>
            <groupId>commons-io</groupId>
            <artifactId>commons-io</artifactId>
            <version>2.2</version>
        </dependency>

        <dependency>
            <groupId>log4j</groupId>
            <artifactId>log4j</artifactId>
            <version>1.2.17</version>
        </dependency>

        <dependency>
            <groupId>org.codehaus.jackson</groupId>
            <artifactId>jackson-mapper-asl</artifactId>
            <version>1.9.13</version>
        </dependency>

        <dependency>
            <groupId>com.jhlabs</groupId>
            <artifactId>imaging</artifactId>
            <version>01012005</version>
        </dependency>

        <dependency>
            <groupId>axis</groupId>
            <artifactId>axis</artifactId>
            <version>1.4</version>
        </dependency>

        <dependency>
            <groupId>org.apache.axis</groupId>
            <artifactId>axis-jaxrpc</artifactId>
            <version>1.4</version>
        </dependency>

        <dependency>
            <groupId>org.apache.poi</groupId>
            <artifactId>poi</artifactId>
            <version>3.11</version>
        </dependency>

        <dependency>
            <groupId>org.apache.poi</groupId>
            <artifactId>poi-ooxml</artifactId>
            <version>3.11</version>
        </dependency>

    </dependencies>

    <build>
        <plugins>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-compiler-plugin</artifactId>
                <version>3.1</version>
                <configuration>
                    <source>1.8</source>
                    <target>1.8</target>
                </configuration>
            </plugin>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-war-plugin</artifactId>
                <configuration>
                    <webXml>src\main\webapp\WEB-INF\web.xml</webXml>
                </configuration>
            </plugin>
        </plugins>
    </build>

</project>

Answer 1

I had recently the same problem with the dom4j library and Wildfly 10. I found this post (in portuguese) and replaced the dom4j library that comes with Wildfly with the one downloaded from the Maven Central, and that solved the problem.

The jar is located in $JBOSS_HOME/modules/system/layers/base/org/dom4j/main, you just replace it with the downloaded file, in my case the file was dom4j-1.6.1.jar. I suppose that if you change the version (at the time of this post this is the last version) you should also modify the module.xml file in the same folder, but I've not tried.

Previously I also tried the self-answer from h.f but didn't solved my problem.

Hope this contributes to someone with the same problem. Best regards

Answer 2

adding below in 'jboss-deployment-structure.xml' under META-INF of my ear file resolved the issue and working in both weblogic & wildfly

<?xml version="1.0" encoding="UTF-8"?>
<jboss-deployment-structure>
    <deployment>
        <dependencies>
            <module name="org.dom4j" export="true"/>
        </dependencies>
    </deployment>
</jboss-deployment-structure>

Answer 3

I just made all hibernate dependencies provided scope and problem solved!

        <dependency>
            <groupId>org.hibernate</groupId>
            <artifactId>hibernate-core</artifactId>
            <version>5.1.0.Final</version>
            <scope>provided</scope>
        </dependency>

        <dependency>
            <groupId>org.hibernate</groupId>
            <artifactId>hibernate-validator</artifactId>
            <version>5.2.4.Final</version>
            <scope>provided</scope>
        </dependency>

        <!-- for JPA, use hibernate-entitymanager instead of hibernate-core -->
        <dependency>
            <groupId>org.hibernate</groupId>
            <artifactId>hibernate-entitymanager</artifactId>
            <version>5.1.0.Final</version>
            <scope>provided</scope>
        </dependency>

        <dependency>
            <groupId>org.hibernate</groupId>
            <artifactId>hibernate-ehcache</artifactId>
            <version>5.1.0.Final</version>
            <scope>provided</scope>
        </dependency>

Answer 4

I had the same problem but finally what I did is to remove (redundant) Hibernate libraries from pom.

As Wildfly is already using Hibernate as JPA provider (https://docs.jboss.org/author/display/WFLY10/JPA+Reference+Guide#JPAReferenceGuide-Introduction), you do not need to provide such classes at all (unless you are directly using Hibernate classes).

So the minimal config is working fine:

<project>
  <dependencies>
    <dependency>
      <groupId>javax</groupId>
      <artifactId>javaee-api</artifactId>
      <version>7.0</version>
      <scope>provided</scope>
    </dependency>
  </dependencies>
</project>

And persistence.xml

<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_2_0.xsd"
         version="2.0">
<persistence-unit name="mysql_hbm" transaction-type="JTA">
    <provider>org.hibernate.jpa.HibernatePersistenceProvider</provider>
    <jta-data-source>java:/jdbc/MySqlDS</jta-data-source>
    <properties>
        <property name="hibernate.dialect" value="org.hibernate.dialect.MySQL5Dialect"/>
        <property name="hibernate.show_sql" value="true"/>
    </properties>
</persistence-unit>

Tested on Wildfly 10.

Answer 5

There are two ways.

1 You create a META-INF folder in webapp folder. Later create jboss-deployment-structure.xml in META-INF folder.

jboss-deployment-structure.xml

<?xml version="1.0" encoding="UTF-8"?>
<jboss-deployment-structure>
    <deployment>
        <dependencies>
            <module name="org.dom4j"/>
        </dependencies>
    </deployment>
</jboss-deployment-structure>

or

2 if you added hibernate-core in pom xml then you edit this.

    <dependency>
        <groupId>org.hibernate</groupId>
        <artifactId>hibernate-core</artifactId>
        <version>4.3.1.Final</version>
        <type>jar</type>
        <scope>provided</scope>
    </dependency>

Answer 6

I had the same problem. I followed this instruction and it worked. http://blog.triona.de/development/java/org-dom4j-documentfactory-classcastexception-on-hudson.html

According to this post https://issues.jboss.org/browse/WFLY-5549 we need to create a file named boss-deployment-structure.xml with the content

<?xml version="1.0" encoding="UTF-8"?>
<jboss-deployment-structure>
    <deployment>
        <dependencies>
            <module name="org.dom4j"/>
        </dependencies>
    </deployment>
</jboss-deployment-structure>

Then place it into ../wildfly/modules/system/layers/base/org/jboss/as/product/wildfly-full/dir/META-INF

I hope this would help.