Create default values after xjc jaxb phase.

gistfile1.xml

<plugin>
                        <groupId>org.apache.cxf</groupId>
                        <artifactId>cxf-xjc-plugin</artifactId>
                        <executions>
                            <execution>
                                <goals>
                                    <goal>xsdtojava</goal>
                                </goals>
                            </execution>
                        </executions>
                        <configuration>
                            <xsdOptions>
                                <xsdOption>
                                    <extension>true</extension>
                                    <xsd>${basedir}/src/main/resources/schemas/application.xsd</xsd>
                                    <extensionArgs>
                                        <arg>-Xdv</arg>
                                    </extensionArgs>
                                </xsdOption>
                            </xsdOptions>
                            <extensions>
                                <extension>org.apache.cxf.xjcplugins:cxf-xjc-dv:2.3.0</extension>
                            </extensions>
                        </configuration>
                    </plugin>