[jboss-user] [Beginners Corner] - Error when invoking Web service...

leorr do-not-reply at jboss.com
Mon Jun 2 10:50:34 EDT 2008


I am encountering the following error when trying to invoke a web service.
using Jboss 4.2.2 and jbossws-native-2.0.1.GA webservices.

"Class javax/xml/rpc/ParameterMode violates loader constraints"

Has anyone got an idea?
thanks,

org.apache.jasper.JasperException: javax.servlet.ServletException: java.lang.LinkageError: Class javax/xml/rpc/ParameterMode violates loader constraints
	org.apache.jasper.servlet.JspServletWrapper.handleJspException(JspServletWrapper.java:521)
	org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:397)
	org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:336)
	org.apache.jasper.servlet.JspServlet.service(JspServlet.java:265)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
	org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96)

root cause

javax.servlet.ServletException: java.lang.LinkageError: Class javax/xml/rpc/ParameterMode violates loader constraints
	org.apache.jasper.runtime.PageContextImpl.doHandlePageException(PageContextImpl.java:850)
	org.apache.jasper.runtime.PageContextImpl.handlePageException(PageContextImpl.java:779)
	org.apache.jsp.views.jbossws_jsp._jspService(jbossws_jsp.java:183)
	org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
	org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:373)
	org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:336)
	org.apache.jasper.servlet.JspServlet.service(JspServlet.java:265)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
	org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96)

root cause

java.lang.LinkageError: Class javax/xml/rpc/ParameterMode violates loader constraints
	java.lang.ClassLoader.defineClass1(Native Method)
	java.lang.ClassLoader.defineClass(ClassLoader.java:620)
	java.security.SecureClassLoader.defineClass(SecureClassLoader.java:124)
	org.apache.catalina.loader.WebappClassLoader.findClassInternal(WebappClassLoader.java:1814)
	org.apache.catalina.loader.WebappClassLoader.findClass(WebappClassLoader.java:872)
	org.jboss.web.tomcat.service.WebAppClassLoader.findClass(WebAppClassLoader.java:139)
	org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1325)
	org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1204)
	java.lang.ClassLoader.loadClassInternal(ClassLoader.java:319)
	java.lang.Class.forName0(Native Method)
	java.lang.Class.forName(Class.java:164)
	$Proxy255.(Unknown Source)

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