Re-enter Colloque

Exception Description Application: Colloque Error: java.lang.NullPointerException Reason: Stack trace: File Line# Method Package DataRapports.java 217 getRapport fr.univlr.colloque.dataCenter DirectAction.java 207 exportPDFAction fr.univlr.colloque.da NativeMethodAccessorImpl.java NA invoke0 sun.reflect NativeMethodAccessorImpl.java 62 invoke sun.reflect DelegatingMethodAccessorImpl.java 43 invoke sun.reflect Method.java 498 invoke java.lang.reflect WODirectAction.java 144 performActionNamed com.webobjects.appserver ERXDirectAction.java 401 performActionNamed er.extensions.appserver DirectAction.java 1635 performActionNamed fr.univlr.colloque.da WOActionRequestHandler.java 259 _handleRequest com.webobjects.appserver._private WOActionRequestHandler.java 158 handleRequest com.webobjects.appserver._private ERXDirectActionRequestHandler.java 126 handleRequest er.extensions.appserver WOApplication.java 1687 dispatchRequest com.webobjects.appserver ERXApplication.java 2086 dispatchRequestImmediately er.extensions.appserver ERXApplication.java 2051 dispatchRequest er.extensions.appserver Application.java 165 dispatchRequest fr.univlr.colloque WOWorkerThread.java 144 runOnce com.webobjects.appserver._private WOWorkerThread.java 226 run com.webobjects.appserver._private Thread.java 750 run java.lang NA : Non applicable, JIT activated