java.lang.SecurityException: sealing violation

[Patrick . Pierra]

Hi,

I use tomcat 3.2 and try to read a xml file throught a servlet but i
recieve this error :

java.lang.Exception: Exception occurred: java.lang.SecurityException:
sealing violation
        at lds.utils.XMLManager.loadXML(XMLManager.java:168)
        at lds.utils.XMLManager.loadXML(XMLManager.java:183)
        at
lds.servlets.OdataControllerServlet.init(OdataControllerServlet.java:93)
        at javax.servlet.GenericServlet.init(GenericServlet.java:258)
        at
org.apache.tomcat.core.ServletWrapper.doInit(ServletWrapper.java:317)
        at org.apache.tomcat.core.Handler.init(Handler.java:215)
        at
org.apache.tomcat.core.ServletWrapper.init(ServletWrapper.java:296)
        at org.apache.tomcat.core.Handler.service(Handler.java:254)
        at
org.apache.tomcat.core.ServletWrapper.service(ServletWrapper.java:372)
        at
org.apache.tomcat.core.ContextManager.internalService(ContextManager.java:797)
        at
org.apache.tomcat.core.ContextManager.service(ContextManager.java:743)
        at
org.apache.tomcat.service.http.HttpConnectionHandler.processConnection(HttpConnectionHandler.java:210)
        at
org.apache.tomcat.service.TcpWorkerThread.runIt(PoolTcpEndpoint.java,
Compiled Code)
        at
org.apache.tomcat.util.ThreadPool$ControlRunnable.run(ThreadPool.java,
Compiled Code)
        at java.lang.Thread.run(Thread.java:479)

any idee to help me ????????????????????????????????????

Patrick PIERRA