Hi, I am using IBM AIX 6.1 . I have deployed my web application on tomcat on AIX . I am facing one problem of xerces.jar . I am getting following exception while navigation my jsp page in which I used . Can any one please help me to get rid of the following error? I would be very thankful to him. ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- *May 21, 2008 10:08:58 PM : CRITICAL ERROR : [EMAIL PROTECTED] : Exception: java.lang.VerifyError: receiver is incompatible with declaring class (class: org/apache/xalan/xpath/xdom/XercesLiaison method: parse(Lorg/xml/sax/InputSource;)V) at pc: 135 java.lang.VerifyError: receiver is incompatible with declaring class (class: org/apache/xalan/xpath/xdom/XercesLiaison method: parse(Lorg/xml/sax/InputSource;)V) at pc: 135 at java.lang.J9VMInternals.verifyImpl(Native Method) at java.lang.J9VMInternals.verify(J9VMInternals.java:59) at java.lang.J9VMInternals.initialize(J9VMInternals.java:120) at com.wru.DisplayEntry.<init>(DisplayEntry.java:35) at org.apache.jsp.public_.wru_jsp._jspService(wru_jsp.java:187) at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70) at javax.servlet.http.HttpServlet.service(HttpServlet.java:803) at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:393) at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:320) at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:266) at javax.servlet.http.HttpServlet.service(HttpServlet.java:803) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:175) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:263) at org.apache.jk.server.JkCoyoteHandler.invoke(JkCoyoteHandler.java:190) at org.apache.jk.common.HandlerRequest.invoke(HandlerRequest.java:283) at org.apache.jk.common.ChannelSocket.invoke(ChannelSocket.java:767) at org.apache.jk.common.ChannelSocket.processConnection(ChannelSocket.java:697) at org.apache.jk.common.ChannelSocket$SocketConnection.runIt(ChannelSocket.java:889) at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:690) at java.lang.Thread.run(Thread.java:799) -------------------------------------------------------------------------------------------------------------- *