I got this stack trace, but not sure what class definition is not found.
Anyone help me deciper this stack trace:
type Exception report
message
description The server encountered an internal error () that prevented it from fulfilling this request.
exception
javax.servlet.ServletException
org.apache.jasper.runtime.PageContextImpl.doHandlePageException(PageContextImpl.java:825)
org.apache.jasper.runtime.PageContextImpl.access$1100(PageContextImpl.java:64)
org.apache.jasper.runtime.PageContextImpl$12.run(PageContextImpl.java:745)
java.security.AccessController.doPrivileged(Native Method)
org.apache.jasper.runtime.PageContextImpl.handlePageException(PageContextImpl.java:743)
org.apache.jsp.antisamy_jsp._jspService(antisamy_jsp.java:111)
org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:94)
javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:324)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:292)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:236)
javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
sun.reflect.GeneratedMethodAccessor103.invoke(Unknown Source)
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
java.lang.reflect.Method.invoke(Method.java:585)
org.apache.catalina.security.SecurityUtil$1.run(SecurityUtil.java:239)
java.security.AccessController.doPrivileged(Native Method)
javax.security.auth.Subject.doAsPrivileged(Subject.java:517)
org.apache.catalina.security.SecurityUtil.execute(SecurityUtil.java:266)
org.apache.catalina.security.SecurityUtil.doAsPrivilege(SecurityUtil.java:157)
root cause
java.lang.NoClassDefFoundError
org.apache.xml.serialize.HTMLSerializer.getEntityRef(Unknown Source)
org.apache.xml.serialize.BaseMarkupSerializer.printEscaped(Unknown Source)
org.apache.xml.serialize.BaseMarkupSerializer.printText(Unknown Source)
org.apache.xml.serialize.BaseMarkupSerializer.characters(Unknown Source)
org.apache.xml.serialize.HTMLSerializer.characters(Unknown Source)
org.apache.xml.serialize.BaseMarkupSerializer.serializeNode(Unknown Source)
org.apache.xml.serialize.BaseMarkupSerializer.serializeNode(Unknown Source)
org.apache.xml.serialize.BaseMarkupSerializer.serialize(Unknown Source)
org.owasp.validator.html.scan.AntiSamyDOMScanner.scan(Unknown Source)
org.owasp.validator.html.AntiSamy.scan(Unknown Source)
org.apache.jsp.antisamy_jsp._jspService(antisamy_jsp.java:64)
org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:94)
javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:324)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:292)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:236)
javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
sun.reflect.GeneratedMethodAccessor103.invoke(Unknown Source)
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
java.lang.reflect.Method.invoke(Method.java:585)
org.apache.catalina.security.SecurityUtil$1.run(SecurityUtil.java:239)
java.security.AccessController.doPrivileged(Native Method)
javax.security.auth.Subject.doAsPrivileged(Subject.java:517)
org.apache.catalina.security.SecurityUtil.execute(SecurityUtil.java:266)
org.apache.catalina.security.SecurityUtil.doAsPrivilege(SecurityUtil.java:157)
What would cause a class from being loaded on one system and the exact same file not load on another?