Generating Java Models from XML Schema fails with Spring Boot 3

[tinah-1973]

I am currently trying to migrate an application from spring boot 2.7 to Spring Boot 3, whereby the Spring 6 is using Jakarta EE 9 instead of JEE. Now I have a problem with the generation of the java models from the xsd file.

This is my plugin configuration:

<plugin>
                <groupId>org.codehaus.mojo</groupId>
                <artifactId>jaxb2-maven-plugin</artifactId>
                <version>3.10</version>
                <dependencies>
                    <dependency>
                        <groupId>org.glassfish.jaxb</groupId>
                        <artifactId>jaxb-runtime</artifactId>
                        <version>4.0.1</version>
                    </dependency>
                    <dependency>
                        <groupId>org.andromda.thirdparty.jaxb2_commons</groupId>
                        <artifactId>collection-setter-injector</artifactId>
                        <version>1.0</version>
                    </dependency>
                </dependencies>

                <executions>

                    <execution>
                        <id>xjc-festo-calc-xsd</id>
                        <goals>
                            <goal>xjc</goal>
                        </goals>
                        <configuration>

                            <!-- Package to store the generated file -->
                            <packageName>com.my.company.calculation.jaxb.dto</packageName>
                            <!-- The XSD file that you saved earlier -->
                            <sources>
                                <source>${project.basedir}/src/main/resources/jaxb2/test.xsd</source>
                            </sources>
                            <arguments>-Xcollection-setter-injector</arguments>
                            <extension>true</extension>
                            <clearOutputDir>false</clearOutputDir>
                            <encoding>UTF-8</encoding>
                        </configuration>
                    </execution>
                </executions>
</plugin>

Running that plugin leads to follwong debug output :

[INFO] BUILD FAILURE [INFO] ------------------------------------------------------------------------ [INFO] Total time: 03:38 min [INFO] Finished at: 2022-12-16T10:57:06+01:00 [INFO] ------------------------------------------------------------------------ [ERROR] Failed to execute goal org.codehaus.mojo:jaxb2-maven-plugin:3.1.0:xjc (xjc-festo-calc-xsd) on project electric-sizing-backend: Execution xjc-festo-calc-xsd of goal org.codehaus.mojo:jaxb2-maven-plugin:3.1.0:xjc failed: An AP I incompatibility was encountered while executing org.codehaus.mojo:jaxb2-maven-plugin:3.1.0:xjc: java.lang.NoSuchMethodError: 'com.sun.xml.bind.api.impl.NameConverter com.sun.tools.xjc.model.Model.getNameConverter()' [ERROR] ----------------------------------------------------- [ERROR] realm = plugin>org.codehaus.mojo:jaxb2-maven-plugin:3.1.0 [ERROR] strategy = org.codehaus.plexus.classworlds.strategy.SelfFirstStrategy [ERROR] urls[0] = file:/C:/Develop/_m2repo/org/codehaus/mojo/jaxb2-maven-plugin/3.1.0/jaxb2-maven-plugin-3.1.0.jar [ERROR] urls[1] = file:/C:/Develop/_m2repo/org/glassfish/jaxb/jaxb-runtime/4.0.1/jaxb-runtime-4.0.1.jar [ERROR] urls[2] = file:/C:/Develop/_m2repo/org/glassfish/jaxb/jaxb-core/4.0.1/jaxb-core-4.0.1.jar [ERROR] urls[3] = file:/C:/Develop/_m2repo/jakarta/xml/bind/jakarta.xml.bind-api/4.0.0/jakarta.xml.bind-api-4.0.0.jar [ERROR] urls[4] = file:/C:/Develop/_m2repo/jakarta/activation/jakarta.activation-api/2.1.0/jakarta.activation-api-2.1.0.jar [ERROR] urls[5] = file:/C:/Develop/_m2repo/org/eclipse/angus/angus-activation/1.0.0/angus-activation-1.0.0.jar [ERROR] urls[6] = file:/C:/Develop/_m2repo/org/glassfish/jaxb/txw2/4.0.1/txw2-4.0.1.jar [ERROR] urls[7] = file:/C:/Develop/_m2repo/org/andromda/thirdparty/jaxb2_commons/collection-setter-injector/1.0/collection-setter-injector-1.0.jar [ERROR] urls[8] = file:/C:/Develop/_m2repo/com/sun/xml/bind/jaxb-impl/2.1.10/jaxb-impl-2.1.10.jar [ERROR] urls[9] = file:/C:/Develop/_m2repo/javax/xml/bind/jaxb-api/2.1/jaxb-api-2.1.jar [ERROR] urls[10] = file:/C:/Develop/_m2repo/javax/xml/stream/stax-api/1.0-2/stax-api-1.0-2.jar [ERROR] urls[11] = file:/C:/Develop/_m2repo/javax/activation/activation/1.1/activation-1.1.jar [ERROR] urls[12] = file:/C:/Develop/_m2repo/com/sun/xml/bind/jaxb-xjc/3.0.0/jaxb-xjc-3.0.0.jar [ERROR] urls[13] = file:/C:/Develop/_m2repo/com/sun/xml/bind/jaxb-core/3.0.0/jaxb-core-3.0.0.jar [ERROR] urls[14] = file:/C:/Develop/_m2repo/com/sun/activation/jakarta.activation/2.0.0/jakarta.activation-2.0.0.jar [ERROR] urls[15] = file:/C:/Develop/_m2repo/com/sun/xml/bind/jaxb-jxc/3.0.0/jaxb-jxc-3.0.0.jar [ERROR] urls[16] = file:/C:/Develop/_m2repo/com/thoughtworks/qdox/qdox/2.0.1/qdox-2.0.1.jar [ERROR] urls[17] = file:/C:/Develop/_m2repo/org/codehaus/plexus/plexus-compiler-api/2.11.1/plexus-compiler-api-2.11.1.jar [ERROR] urls[19] = file:/C:/Develop/_m2repo/org/sonatype/plexus/plexus-build-api/0.0.7/plexus-build-api-0.0.7.jar [ERROR] urls[20] = file:/C:/Develop/_m2repo/com/sun/istack/istack-commons-runtime/4.0.0/istack-commons-runtime-4.0.0.jar [ERROR] Number of foreign imports: 1 [ERROR] import: Entry[import from realm ClassRealm[maven.api, parent: null]] [ERROR]

Why is it still trying to pull in javax packages? Version 3.1.0 is switched to jakarta, isn't it? Can someone please help me with this problem?

[tinah-1973]

I think I found what the problem is. I use collection-setter-injector to generate setter for collection fields. This artifact includes the outdated dependencies.

How can I create setters in Plugin version 3.1.0? Any idea?

[MarkvanOsch]

A similar issue here, but looks caused by the fluent-api dependency. Has anyone an example of a working configuration setup using the latest 3.1.0 version of the jaxb2-maven-plugin?

[tinah-1973]

I solved the problem by using at first the getter method to get the List and then use the addAll method to add a List of items. According to the generated Code comment is this the suggested approach. So no setter is necessary anymore.