NoClassDefFoundError when working with CQ webservice using CXF

I am working on a below community article of creating OSGi bundle which consumes third party webservice. I followed all the steps given in the article but I am seeing no class found error . I am using AEM 5.6 and modified the sling.properties file located in the crx-quickstart\conf folder. by adding below line

sling.bootdelegation.com.sun=com.sun.*

Article link:

https://helpx.adobe.com/experience-manager/using/creating-cxf-bundles-consume-web.html

below is the stack trace of the error

Caused by: org.apache.sling.api.SlingException: An exception occurred processing JSP page /apps/weatherapp/components/page/weathertemplate/weathertemplate.jsp at line 7 at org.apache.sling.scripting.jsp.jasper.servlet.JspServletWrapper.handleJspExceptionInternal(JspServletWrapper.java:683) at org.apache.sling.scripting.jsp.jasper.servlet.JspServletWrapper.handleJspException(JspServletWrapper.java:608) at org.apache.sling.scripting.jsp.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:525) at org.apache.sling.scripting.jsp.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:449) at org.apache.sling.scripting.jsp.JspScriptEngineFactory.callJsp(JspScriptEngineFactory.java:265) at org.apache.sling.scripting.jsp.JspScriptEngineFactory.access$100(JspScriptEngineFactory.java:87) at org.apache.sling.scripting.jsp.JspScriptEngineFactory$JspScriptEngine.eval(JspScriptEngineFactory.java:465) at org.apache.sling.scripting.core.impl.DefaultSlingScript.call(DefaultSlingScript.java:361) ... 114 more Caused by: java.lang.NoClassDefFoundError: com/aem/ws/GlobalWeather at org.apache.jsp.apps.weatherapp.components.page.weathertemplate.weathertemplate_jsp._jspService(weathertemplate_jsp.java:153) at org.apache.sling.scripting.jsp.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70) at javax.servlet.http.HttpServlet.service(HttpServlet.java:820) at org.apache.sling.scripting.jsp.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:502) ... 119 more