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<td class="text-paragraph-pattern-container mobile-resize-text " style="padding: 0; border-collapse: collapse; padding: 0 0 10px"> <p style="margin: 10px 0 0; margin-top: 0">I cannot get any variation of adding annotation processors to actually find the JAXB implement.</p> <p style="margin: 10px 0 0">I’ve trying using maven compile with annotation processors like above. </p>
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<pre class="code-xml" style="margin: 10px 0 0; margin-top: 0; max-height: 30em; overflow: auto; white-space: pre-wrap; word-wrap: normal"> <span class="code-tag" style="color: #000091"><profile></span>
<span class="code-tag" style="color: #000091"><id></span>path<span class="code-tag" style="color: #000091"></id></span>
<span class="code-tag" style="color: #000091"><build></span>
<span class="code-tag" style="color: #000091"><plugins></span>
<span class="code-tag" style="color: #000091"><plugin></span>
<span class="code-tag" style="color: #000091"><artifactId></span>maven-compiler-plugin<span class="code-tag" style="color: #000091"></artifactId></span>
<span class="code-tag" style="color: #000091"><version></span>3.8.1<span class="code-tag" style="color: #000091"></version></span>
<span class="code-tag" style="color: #000091"><executions></span>
<span class="code-tag" style="color: #000091"><execution></span>
<span class="code-tag" style="color: #000091"><id></span>hibernate-jpamodelgen<span class="code-tag" style="color: #000091"></id></span>
<span class="code-tag" style="color: #000091"><configuration></span>
<span class="code-tag" style="color: #000091"><annotationProcessors></span>
org.hibernate.jpamodelgen.JPAMetaModelEntityProcessor
<span class="code-tag" style="color: #000091"></annotationProcessors></span>
<span class="code-tag" style="color: #000091"><annotationProcessorPaths></span>
<span class="code-tag" style="color: #000091"><path></span>
<span class="code-tag" style="color: #000091"><groupId></span>org.hibernate<span class="code-tag" style="color: #000091"></groupId></span>
<span class="code-tag" style="color: #000091"><artifactId></span>hibernate-jpamodelgen<span class="code-tag" style="color: #000091"></artifactId></span>
<span class="code-tag" style="color: #000091"><version></span>5.4.4.Final<span class="code-tag" style="color: #000091"></version></span>
<span class="code-tag" style="color: #000091"></path></span>
<span class="code-tag" style="color: #000091"></annotationProcessorPaths></span>
<span class="code-tag" style="color: #000091"><verbose></span>false<span class="code-tag" style="color: #000091"></verbose></span>
<span class="code-tag" style="color: #000091"><compilerArgs></span>
<span class="code-tag" style="color: #000091"><arg></span>-Adebug=true<span class="code-tag" style="color: #000091"></arg></span>
<span class="code-tag" style="color: #000091"></compilerArgs></span>
<span class="code-tag" style="color: #000091"></configuration></span>
<span class="code-tag" style="color: #000091"></execution></span>
<span class="code-tag" style="color: #000091"></executions></span>
<span class="code-tag" style="color: #000091"></plugin></span>
<span class="code-tag" style="color: #000091"></plugins></span>
<span class="code-tag" style="color: #000091"></build></span>
<span class="code-tag" style="color: #000091"></profile></span></pre>
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</div> <p style="margin: 10px 0 0">And a maven processor plugin (this is how we are doing it with Java 8)</p>
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<pre class="code-java" style="margin: 10px 0 0; margin-top: 0; max-height: 30em; overflow: auto; white-space: pre-wrap; word-wrap: normal"> <profile>
<id>processor</id>
<build>
<plugins>
<plugin>
<groupId>org.bsc.maven</groupId>
<artifactId>maven-processor-plugin</artifactId>
<version>3.3.3</version>
<executions>
<execution>
<id>process</id>
<goals>
<goal>process</goal>
</goals>
<phase>generate-sources</phase>
<configuration>
<processors>
<processor>org.hibernate.jpamodelgen.JPAMetaModelEntityProcessor</processor>
</processors>
<fork><span class="code-keyword" style="color: #000091">true</span></fork>
<releaseVersion>11</releaseVersion>
<options>
<debug><span class="code-keyword" style="color: #000091">true</span></debug>
</options>
</configuration>
</execution>
</executions>
<dependencies>
<dependency>
<groupId>org.hibernate</groupId>
<artifactId>hibernate-jpamodelgen</artifactId>
<version>5.4.4.Worldticket</version>
</dependency>
</dependencies>
</plugin>
</plugins>
</build>
</profile></pre>
</div>
</div> <p style="margin: 10px 0 0">Or adding the processor to dependencies as optional</p> <p style="margin: 10px 0 0">I need to enable debug output before even getting the warning about persistence.xml and orm.xml not being found. The processor continues anyway but without generating anything setup in the XML files</p>
<blockquote style="margin: 10px 0 0; border-left: 1px solid #cccccc; color: #707070; margin-left: 19px; padding: 10px 20px">
<p style="margin: 10px 0 0; margin-top: 0">[INFO] — maven-processor-plugin:3.3.3:process (process) @ ticket-db-jpa —</p>
<p style="margin: 10px 0 0">Note: Hibernate JPA 2 Static-Metamodel Generator 5.4.4.Final</p>
<p style="margin: 10px 0 0">warning: Unable to parse persistence.xml: Unable to perform unmarshalling at line number 0 and column 0. Message: null</p>
<p style="margin: 10px 0 0">warning: Unable to parse /META-INF/orm.xml: Unable to perform unmarshalling at line number 0 and column 0. Message: null</p>
</blockquote> <p style="margin: 10px 0 0">When I debug this it always up in {{XmlParserHelper}}calling {{JAXBContext.newInstance}}without a classloader and all versions of JAXB API then use the context classloader which is the bootstrap classloader which in Java11 does not include the JAXB api or runtime. Just changing this line to use the same classloader that loaded the model processor make it work.</p>
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<pre class="code-java" style="margin: 10px 0 0; margin-top: 0; max-height: 30em; overflow: auto; white-space: pre-wrap; word-wrap: normal">===================================================================
--- tooling/metamodel-generator/src/main/java/org/hibernate/jpamodelgen/util/xml/XmlParserHelper.java (date 1564437374000)
+++ tooling/metamodel-generator/src/main/java/org/hibernate/jpamodelgen/util/xml/XmlParserHelper.java (date 1567066288079)
@@ -119,7 +118,7 @@
ContextProvidingValidationEventHandler handler = <span class="code-keyword" style="color: #000091">new</span> ContextProvidingValidationEventHandler();
<span class="code-keyword" style="color: #000091">try</span> {
staxEventReader = <span class="code-keyword" style="color: #000091">new</span> JpaNamespaceTransformingEventReader( staxEventReader );
- JAXBContext jaxbContext = JAXBContext.newInstance( ObjectFactory.class );
+ JAXBContext jaxbContext = JAXBContext.newInstance( ObjectFactory.<span class="code-keyword" style="color: #000091">class.</span>getPackage().getName(), getClass().getClassLoader() );
Unmarshaller unmarshaller = jaxbContext.createUnmarshaller();
unmarshaller.setSchema( schema );
unmarshaller.setEventHandler( handler );
</pre>
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