Start up error: XML-20108: (Fatal Error) Start of root element expected.

Question

Hi,
Before I got this error, I manually de-install / install Oracle Spatial and followed metalink Note 179472.1 and 220481.1.
The reason why I did these is when I run some spation function, always got error message like: ORA-06553:PLS-907: cannot load library unit MSDYS.SDO-3GL (referenced by MDSYS.SDO-FILTER)
I checked that Spatial is invalid.
I've struggled with this error for one day. My application is a ADF Faces combine with MapViewer application, and I deployed it to my standalone OC4J (workstation). It works fine.
Unfortunatelly, I can not deploy app to OracleAS(RHEL 4.0 server). so I copied the .ear file to server, and deploy it via IAS console.
There is no error for deployment, but when I run the application. The page no response at all(like blocked). I checked the log files under $ORACLE_HOME/opmn/logs and the error is : <Line1, Column1>:XML-20108: (Fatal Error) Start of root element expected.
The following is my web.xml file:
<?xml version = '1.0' encoding = 'windows-1252'?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd" version="2.4" xmlns="http://java.sun.com/xml/ns/j2ee">
<description>Empty web.xml file for Web Application</description>
<filter>
<filter-name>adfFaces</filter-name>
<filter-class>oracle.adf.view.faces.webapp.AdfFacesFilter</filter-class>
</filter>
<filter-mapping>
<filter-name>adfFaces</filter-name>
<servlet-name>Faces Servlet</servlet-name>
<dispatcher>FORWARD</dispatcher>
<dispatcher>REQUEST</dispatcher>
</filter-mapping>
<servlet>
<servlet-name>Faces Servlet</servlet-name>
<servlet-class>javax.faces.webapp.FacesServlet</servlet-class>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet>
<servlet-name>resources</servlet-name>
<servlet-class>oracle.adf.view.faces.webapp.ResourceServlet</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>Faces Servlet</servlet-name>
<url-pattern>/faces/*</url-pattern>
</servlet-mapping>
<servlet-mapping>
<servlet-name>resources</servlet-name>
<url-pattern>/adf/*</url-pattern>
</servlet-mapping>
<session-config>
<session-timeout>35</session-timeout>
</session-config>
<mime-mapping>
<extension>html</extension>
<mime-type>text/html</mime-type>
</mime-mapping>
<mime-mapping>
<extension>txt</extension>
<mime-type>text/plain</mime-type>
</mime-mapping>
<welcome-file-list>
<welcome-file>/index.jsp</welcome-file>
</welcome-file-list>
<jsp-config/>
</web-app>
Any helps / ideas?
I appreciate you.
Thanks
Joyce

Answer 1

Check your xml data. You can use setData() with file path parameter or InputStream parameter. See this reference link http://docs.oracle.com/cd/E15586_01/fusionapps.1111/e20838/javaapis.htm#BIPDV005