<build>
<plugins>
    <plugin>
        <groupId>org.codehaus.mojo</groupId>
        <artifactId>jaxb2-maven-plugin</artifactId>
        <version>2.5.0</version>
        <executions>
            <execution>
                <goals>
                    <goal>generate</goal>
                </goals>
            </execution>
        </executions>
        <configuration>
            <schemaDirectory>${project.basedir}/src/main/resources</schemaDirectory>
            <outputDirectory>${project.basedir}/target/generated-sources/xjc</outputDirectory>
            <packageName>com.example.generated</packageName>
        </configuration>
    </plugin>
</plugins>