Maven不从wsdl文件生成java类源文件

Question

我已将pom文件配置如下：

       <plugin>
            <groupId>org.codehaus.mojo</groupId>
            <artifactId>jaxb2-maven-plugin</artifactId>
            <version>1.6</version>
            <executions>
                <execution>
                    <id>xjc</id>
                    <goals>
                        <goal>xjc</goal>
                    </goals>
                </execution>
            </executions>
            <configuration>
                <outputDirectory>src/main/java</outputDirectory>
                <packageName>com.test</packageName>
                <wsdl>true</wsdl>
                <xmlschema>false</xmlschema>
                <schemaDirectory>src/main/resources/wsdl</schemaDirectory>
                <schemaFiles>mex.wsdl</schemaFiles>
                <clearOutputDir>false</clearOutputDir>
            </configuration>
        </plugin>

当我使用maven命令构建时，它读取wsdl文件并构建成功

[INFO] --- jaxb2-maven-plugin:1.6:xjc (xjc) ---
[INFO] Generating source...
[INFO] parsing a schema...
[INFO] compiling a schema...

但是java源文件没有生成，没有得到我在这里所做的错误