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HTTP Status 500 - java.io.IOException: Server returned HTTP response code: 502 for URL: http://service.21-sun.com/services/Web21sunDBHelper?wsdl

type Exception report

message java.io.IOException: Server returned HTTP response code: 502 for URL: http://service.21-sun.com/services/Web21sunDBHelper?wsdl

description The server encountered an internal error that prevented it from fulfilling this request.

exception

org.apache.jasper.JasperException: java.io.IOException: Server returned HTTP response code: 502 for URL: http://service.21-sun.com/services/Web21sunDBHelper?wsdl
	org.apache.jasper.servlet.JspServletWrapper.handleJspException(JspServletWrapper.java:502)
	org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:418)
	org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:313)
	org.apache.jasper.servlet.JspServlet.service(JspServlet.java:260)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:723)
	org.tuckey.web.filters.urlrewrite.UrlRewriteFilter.doFilter(UrlRewriteFilter.java:738)
	filters.SetCharacterEncodingFilter.doFilter(SetCharacterEncodingFilter.java:120)
	com.jerehnet.tomcat.filter.SecurityFilter.doFilter(SecurityFilter.java:26)

root cause

java.io.IOException: Server returned HTTP response code: 502 for URL: http://service.21-sun.com/services/Web21sunDBHelper?wsdl
	sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLConnection.java:1627)
	java.net.URL.openStream(URL.java:1041)
	org.codehaus.xfire.client.Client.(Client.java:246)
	com.jerehnet.webservice.WEBServiceUtil.executeDynamic(WEBServiceUtil.java:12)
	com.jerehnet.webservice.WEBDBHelper.getMapListByPage(WEBDBHelper.java:74)
	org.apache.jsp.news.hangye_jsp._jspService(hangye_jsp.java:77)
	org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:723)
	org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:388)
	org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:313)
	org.apache.jasper.servlet.JspServlet.service(JspServlet.java:260)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:723)
	org.tuckey.web.filters.urlrewrite.UrlRewriteFilter.doFilter(UrlRewriteFilter.java:738)
	filters.SetCharacterEncodingFilter.doFilter(SetCharacterEncodingFilter.java:120)
	com.jerehnet.tomcat.filter.SecurityFilter.doFilter(SecurityFilter.java:26)

note The full stack trace of the root cause is available in the Apache Tomcat/6.0.37 logs.