additions necessary for using the plugin in your own project

pom.xml

...

<dependencies>		
	<!-- https://mvnrepository.com/artifact/com.sun.xml.rpc/jaxrpc-impl -->
	<dependency>
	    <groupId>com.sun.xml.rpc</groupId>
	    <artifactId>jaxrpc-impl</artifactId>
	    <version>1.1.5</version>
	</dependency>
</dependencies>

<build>
	<plugins>
		<plugin>
			<groupId>net.sf.jaxrpc-maven</groupId>
			<artifactId>jaxrpc-maven-plugin</artifactId>
			<version>0.3.1</version>
			<executions>
				<execution>
					<id>jax-rpc-scoring-client</id>
					<phase>process-resources</phase>
					<goals>
						<goal>wscompile</goal>
					</goals>
				</execution>
			</executions>
			<configuration>
				<config>${project.basedir}/jaxrpc-config.xml</config>
				<operation>gen:client</operation>
				<mapping>${project.build.outputDirectory}/META-INF/jaxrpc-mapping.xml</mapping>
				<nd>${project.build.outputDirectory}/META-INF/wsdl</nd>
				<d>${project.build.directory}/generated-classes/jaxrpc</d>
				<keep>true</keep>
				<verbose>true</verbose>
			</configuration>
		</plugin>
	</plugins>
</build>

...