Hi , I am using JBOSS AS 4.2.3 with JBOSS WS-CXF 3.0.2 version with JDK 1.6 on Eclipse 3.5 Galileo. I successfully installed CXF WS on JBOSS AS 4.2.3.G. In the Eclipse->Window->preference->Web Service -> JBOSS WS In that option , I selected JBOSS 4.2.3 as JBOSS 4.2.3 G.A. as JBOSS WS Runtime as I selected it as jboss.home in the ant.properties file. After that I created Dynamic Web Project with JBOSS WS run time . I created a POJO . package com.test.ws; import javax.jws.WebMethod; import javax.jws.WebService; @WebService public class Converter { @WebMethod public float celsiusToFarenheit ( float celsius ) { return (celsius * 9 / 5) + 32; } @WebMethod public float farenheitToCelsius ( float farenheit ) { return (farenheit - 32) * 5 / 9; } } After that I tried to create a Web Service using Bottom up approach similar to Axis procedure.But When I click next button ,it showed me an exception. Details of EXception :- Exception in thread "main" java.lang.IllegalStateException: Failed to load: org.jboss.ws.tools.jaxws.impl.JBossWSProviderFactoryImpl at org.jboss.wsf.spi.util.ServiceLoader.loadDefault(ServiceLoader.java:205) at org.jboss.wsf.spi.util.ServiceLoader.loadFromSystemProperty(ServiceLoader.java:138) at org.jboss.wsf.spi.util.ServiceLoader.loadService(ServiceLoader.java:68) at org.jboss.wsf.spi.tools.WSContractProvider.newInstance(WSContractProvider.java:65) at org.jboss.wsf.spi.tools.cmd.WSProvide.generate(WSProvide.java:170) at org.jboss.wsf.spi.tools.cmd.WSProvide.main(WSProvide.java:77) Caused by: java.lang.ClassNotFoundException: org.jboss.ws.tools.jaxws.impl.JBossWSProviderFactoryImpl at java.net.URLClassLoader$1.run(URLClassLoader.java:200) at java.security.AccessController.doPrivileged(Native Method) at java.net.URLClassLoader.findClass(URLClassLoader.java:188) at java.lang.ClassLoader.loadClass(ClassLoader.java:306) at java.lang.ClassLoader.loadClass(ClassLoader.java:251) at org.jboss.wsf.spi.util.ServiceLoader.loadDefault(ServiceLoader.java:200) ... 5 more Please help me out. Please tell me where I made a mistake. Any help would be appreciated. Thanks Sandy View the original post : http://www.jboss.org/index.html?module=bb&op=viewtopic&p=4263205#... Reply to the post : http://www.jboss.org/index.html?module=bb&op=posting&mode=reply&a...