How to generate classes from wsdl using Maven and wsimport?

When I attempt to run "mvn generate-sources" this is my output :

SLF4J: Failed to load class "org.slf4j.impl.StaticLoggerBinder".
SLF4J: Defaulting to no-operation (NOP) logger implementation
SLF4J: See http://www.slf4j.org/codes.html#StaticLoggerBinder for further details.
[INFO] Scanning for projects...
[INFO]                                                                         
[INFO] ------------------------------------------------------------------------
[INFO] Building gensourcesfromwsdl 0.0.1-SNAPSHOT
[INFO] ------------------------------------------------------------------------
[INFO] ------------------------------------------------------------------------
[INFO] BUILD SUCCESS
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 0.104s
[INFO] Finished at: Tue Aug 20 15:41:10 BST 2013
[INFO] Final Memory: 2M/15M
[INFO] ------------------------------------------------------------------------

I do not receive any errors but there are no java classes generated from the wsdl file.

Here is my pom.xml file that I'm running the plugin against :

<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>
    <groupId>gensourcesfromwsdl</groupId>
    <artifactId>gensourcesfromwsdl</artifactId>
    <version>0.0.1-SNAPSHOT</version>

    <build>
        <pluginManagement>
            <plugins>
                <plugin>
                    <groupId>org.codehaus.mojo</groupId>
                    <artifactId>jaxws-maven-plugin</artifactId>
                    <version>1.12</version>
                    <executions>
                        <execution>
                            <goals>
                                <goal>wsimport</goal>
                            </goals>
                            <configuration>
                                <wsdlLocation>http://mysite/firstwsdl.asmx?wsdl</wsdlLocation>
                                <packageName>com</packageName>
                            </configuration>
                        </execution>
                    </executions>
                </plugin>
            </plugins>
        </pluginManagement>
    </build>

</project>

What am I doing wrong ? The package com exists in the project 'gensourcesfromwsdl' and the wsdl location is valid.

When I run wsimport via the command line : >wsimport -keep -verbose http://mysite/firstwsdl.asmx?wsdl the class is generated.

Solution

To generate classes from WSDL, all you need is build-helper-maven-plugin and jaxws-maven-plugin in your pom.xml
Make sure you have placed wsdl under folder src/main/resources/wsdl and corresponding schema in src/main/resources/schema, run command "mvn generate-sources" from Project root directory.

C:/Project root directory > mvn generate-sources

generated java classes can be located under folder

target/generated/src/main/java/com/raps/code/generate/ws.

pom.xml snippet

<plugin>
    <groupId>org.codehaus.mojo</groupId>
    <artifactId>build-helper-maven-plugin</artifactId>
    <version>1.9</version>
    <executions>
        <execution>
            <id>add-source</id>
            <phase>generate-sources</phase>
            <goals><goal>add-source</goal></goals>
            <configuration>
                <sources>
                    <source>${project.build.directory}/generated/src/main/java</source>
                </sources>
            </configuration>
        </execution>
    </executions>
</plugin>

<plugin>
    <groupId>org.codehaus.mojo</groupId>
    <artifactId>jaxws-maven-plugin</artifactId>
    <version>1.12</version>
    <configuration>
        <wsdlDirectory>${project.basedir}/src/main/resources/wsdl</wsdlDirectory>
        <packageName>com.raps.code.generate.ws</packageName>
        <keep>true</keep>
        <sourceDestDir>${project.build.directory}/generated/src/main/java</sourceDestDir>
    </configuration>
    <executions>
        <execution> 
            <id>myImport</id>
            <goals><goal>wsimport</goal></goals>
        </execution>
    </executions>
</plugin>