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java.lang.NullPointerException: 	at oracle.portal.provider.v2.http.URLProviderInstance.initSession(Unknown Source)	at oracle.webdb.provider.v2.adapter.soapV1.ProviderAdapter.initSession(Unknown Source)	at sun.reflect.GeneratedMethodAccessor83.invoke(Unknown Source)	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)	at java.lang.reflect.Method.invoke(Method.java:324)	at oracle.webdb.provider.v2.utils.soap.SOAPProcessor.doMethodCall(Unknown Source)	at oracle.webdb.provider.v2.utils.soap.SOAPProcessor.processInternal(Unknown Source)	at oracle.webdb.provider.v2.utils.soap.SOAPProcessor.process(Unknown Source)	at oracle.webdb.provider.v2.adapter.SOAPServlet.doSOAPCall(Unknown Source)	at oracle.webdb.provider.v2.adapter.SOAPServlet.service(Unknown Source)	at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)