Erro Docx4j

Senhores,

Boa tarde,

Preciso gerar os PDFs de uma aplicação para .docx também (Atualmente os usuários de a opção de gerar apenas os documentos em PDF). Pensei em usar o docx4j. Mas estou apenas com 1 único erro para prosseguir com os meus testes. Se puderem me ajudar agradeço!!! Muito obrigado a todos mais 1 vez!

Erro:

--------------------------------[ jar ]---------------------------------

--- exec-maven-plugin:1.2.1:exec (default-cli) @ docx4jExample ---
2021-06-18 11:05:24 INFO  Context - java.vendor=Oracle Corporation
2021-06-18 11:05:24 INFO  Context - java.version=1.8.0_162
2021-06-18 11:05:24 INFO  Context - No MOXy JAXB config found; assume not intended..
2021-06-18 11:05:24 INFO  NamespacePrefixMapperUtils - Using NamespacePrefixMapperSunInternal, which is suitable for Java 6
2021-06-18 11:05:24 INFO  Context - Using Java 6/7 JAXB implementation
2021-06-18 11:05:26 INFO  Context - Not using MOXy; using com.sun.xml.internal.bind.v2.runtime.JAXBContextImpl
2021-06-18 11:05:26 WARN  XmlUtils - Xalan jar missing from classpath; xslt not supported
2021-06-18 11:05:26 WARN  ResourceUtils - Couldn't get resource: docx4j.properties
2021-06-18 11:05:26 WARN  Docx4jProperties - Couldn't find/read docx4j.properties; docx4j.properties not found via classloader.
2021-06-18 11:05:26 INFO  XmlUtils - setProperty com.sun.org.apache.xerces.internal.jaxp.SAXParserFactoryImpl
2021-06-18 11:05:26 INFO  XmlUtils - actual: com.sun.org.apache.xerces.internal.jaxp.SAXParserFactoryImpl
2021-06-18 11:05:26 INFO  XmlUtils - setProperty com.sun.org.apache.xerces.internal.jaxp.DocumentBuilderFactoryImpl
2021-06-18 11:05:26 INFO  XmlUtils - actual: com.sun.org.apache.xerces.internal.jaxp.DocumentBuilderFactoryImpl
2021-06-18 11:05:26 INFO  ContentTypeManager - Detected WordProcessingML package 
2021-06-18 11:05:26 INFO  Load3 - Instantiated package of type org.docx4j.openpackaging.packages.WordprocessingMLPackage
2021-06-18 11:05:26 INFO  XPathFactoryUtil - xpath implementation: com.sun.org.apache.xpath.internal.jaxp.XPathFactoryImpl
2021-06-18 11:05:26 INFO  Load3 - package read;  elapsed time: 2382 ms
Exception in thread "main" java.lang.NoClassDefFoundError: org/apache/xml/utils/PrefixResolver
	at java.lang.ClassLoader.defineClass1(Native Method)
	at java.lang.ClassLoader.defineClass(ClassLoader.java:763)
	at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142)
	at java.net.URLClassLoader.defineClass(URLClassLoader.java:467)
	at java.net.URLClassLoader.access$100(URLClassLoader.java:73)
	at java.net.URLClassLoader$1.run(URLClassLoader.java:368)
	at java.net.URLClassLoader$1.run(URLClassLoader.java:362)
	at java.security.AccessController.doPrivileged(Native Method)
	at java.net.URLClassLoader.findClass(URLClassLoader.java:361)
	at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
	at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:338)
	at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
	at org.docx4j.jaxb.NamespacePrefixMapperSunInternal.getPreferredPrefix(NamespacePrefixMapperSunInternal.java:71)
	at com.sun.xml.internal.bind.v2.runtime.output.NamespaceContextImpl.declareNsUri(NamespaceContextImpl.java:140)
	at com.sun.xml.internal.bind.v2.runtime.XMLSerializer.startElement(XMLSerializer.java:896)
	at com.sun.xml.internal.bind.v2.runtime.XMLSerializer.startElement(XMLSerializer.java:251)
	at com.sun.xml.internal.bind.v2.runtime.ClassBeanInfoImpl.serializeRoot(ClassBeanInfoImpl.java:325)
	at com.sun.xml.internal.bind.v2.runtime.XMLSerializer.childAsRoot(XMLSerializer.java:479)
	at com.sun.xml.internal.bind.v2.runtime.MarshallerImpl.write(MarshallerImpl.java:308)
	at com.sun.xml.internal.bind.v2.runtime.MarshallerImpl.marshal(MarshallerImpl.java:236)
	at javax.xml.bind.helpers.AbstractMarshallerImpl.marshal(AbstractMarshallerImpl.java:130)
	at org.docx4j.openpackaging.parts.JaxbXmlPart.marshal(JaxbXmlPart.java:634)
	at org.docx4j.convert.out.flatOpcXml.FlatOpcXmlCreator.createRawXmlPart(FlatOpcXmlCreator.java:217)
	at org.docx4j.convert.out.flatOpcXml.FlatOpcXmlCreator.saveRawXmlPart(FlatOpcXmlCreator.java:182)
	at org.docx4j.convert.out.flatOpcXml.FlatOpcXmlCreator.get(FlatOpcXmlCreator.java:123)
	at org.docx4j.openpackaging.packages.WordprocessingMLPackage.transform(WordprocessingMLPackage.java:229)
	at org.docx4j.openpackaging.packages.WordprocessingMLPackage.filter(WordprocessingMLPackage.java:293)
	at org.docx4j.model.datastorage.migration.VariablePrepare.prepare(VariablePrepare.java:79)
	at docx4jExample.GenerateDocuments.generateDocument(GenerateDocuments.java:58)
	at docx4jExample.main.main(main.java:30)
Caused by: java.lang.ClassNotFoundException: org.apache.xml.utils.PrefixResolver
	at java.net.URLClassLoader.findClass(URLClassLoader.java:381)
	at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
	at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:338)
	at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
	... 30 more

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>br.eti.teste</groupId>
    <artifactId>docx4jExample</artifactId>
    <version>1.0</version>
    <packaging>jar</packaging>
    <dependencies>
        <dependency>
            <groupId>org.docx4j</groupId>
            <artifactId>docx4j</artifactId>
            <version>6.1.2</version>
        </dependency>
<dependency>
    <groupId>com.j256.simplemagic</groupId>
    <artifactId>simplemagic</artifactId>
    <version>1.6</version>
</dependency>
        <dependency>
            <groupId>log4j</groupId>
            <artifactId>log4j</artifactId>
            <version>1.2.17</version>
        </dependency>
        <dependency>
            <groupId>org.slf4j</groupId>
            <artifactId>slf4j-api</artifactId>
            <version>1.7.12</version>
        </dependency>
        <dependency>
            <groupId>org.apache.commons</groupId>
            <artifactId>commons-compress</artifactId>
            <version>1.18</version>
        </dependency>
        <dependency>
            <groupId>commons-io</groupId>
            <artifactId>commons-io</artifactId>
            <version>2.5</version>
        </dependency>
        <dependency>
            <groupId>com.google.guava</groupId>
            <artifactId>guava</artifactId>
            <version>14.0</version>
        </dependency>        
<dependency>
    <groupId>org.apache.xmlgraphics</groupId>
    <artifactId>xmlgraphics-commons</artifactId>
    <version>2.6</version>
</dependency>        
    </dependencies>
    <properties>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
        <maven.compiler.source>1.8</maven.compiler.source>
        <maven.compiler.target>1.8</maven.compiler.target>
    </properties>
</project>

Acho que ta faltando configurar o classhpath do xmlUtil, xalam