JAXB not able to convert value into BigDecimal

Question

In a Spring Boot application I am using maven-jaxb2-plugin to generate classes from WSDL file:

<plugin>
                <groupId>org.jvnet.jaxb2.maven2</groupId>
                <artifactId>maven-jaxb2-plugin</artifactId>
                <version>0.14.0</version>
                <executions>
                    <execution>
                        <goals>
                            <goal>generate</goal>
                        </goals>
                    </execution>
                </executions>
                <configuration>
                    <schemaLanguage>AUTODETECT</schemaLanguage>
                    <schemaDirectory>src/main/resources</schemaDirectory>
                    <schemaIncludes>
                        <include>*.wsdl</include>
                    </schemaIncludes>
                    <generatePackage>pl.pantuptus.app.integration</generatePackage>
                </configuration>
            </plugin>

The WSDL file contains sales field defined as:

<s:element minOccurs="1" maxOccurs="1"
                        name="sales" type="s:decimal" />

which is transformed by maven-jaxb2-plugin into a BigDecimal property of a generated class:

@XmlElement(name = "sales", required = true)
protected BigDecimal sales;

I configure the JAXB Marshaller explicitly in a configuration component:

@Configuration
public class IntegrationConfig {
    @Bean
    public Jaxb2Marshaller marshaller() {
        Jaxb2Marshaller marshaller = new Jaxb2Marshaller();
        marshaller.setContextPath("pl.pantuptus.app.integration");
        return marshaller;
    }

    @Bean
    public MyClient myClient(Jaxb2Marshaller marshaller) {
        MyClient client = new MyClient();
        client.setDefaultUri("http://localhost:8080/ws");
        client.setMarshaller(marshaller);
        client.setUnmarshaller(marshaller);
        return client;
    }
}

My problem is that when I call the WS endpoint from the client:

getWebServiceTemplate().marshalSendAndReceive(url, request)

I receive an object with null value of sales property.

My guess is that JAXB is not able to parse this property correctly because it has comma-based format in the response.

<sales>23 771,08</sales>

And here comes the question: how can I tell the Jaxb2Marshaller (or any other Marshaller implementation) how to convert such string into BigDecimal?

Answer 1

After adding validator to the marshaller in IntegrationConfig :

marshaller.setValidationEventHandler(new MyValidationEventHandler());

I discovered that the SOAP document (with commas in the sales values) is not validated against the WSDL:

iswlMyValidationEventHandler : LINKED EXCEPTION: java.lang.NumberFormatException

I think the only solution for that is to request for a proper WSDL file or for a proper WS response to the service provider.