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Integration of JBPM into a web application
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created by <a href="https://community.jboss.org/people/cyrine">Cyrine Bjaoui</a> in <i>jBPM Development</i> - <a href="https://community.jboss.org/message/773663#773663">View the full discussion</a>
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<div class="jive-rendered-content"><p>Hello everybody,</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>I started creating a JBPM5 project, witch includes some functions to call in a main class. It runs perfectly.</p><p>I created also a web application, witch contains 2 web pages  (a web page A with a button to go to the web page B). It works too.</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>Now i wanna use a function from the JBPM project, and call it via the button action (I used a managed bean) of my web page.</p><p>I tryed to call my JBPM project as Jar file, it generated an error saying :</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>" GRAVE: Exception lors de l'envoi de l'évènement contexte initialisé (context initialized) à l'instance de classe d'écoute (listener) com.sun.faces.config.ConfigureListener</p><p>java.lang.LinkageError: loader constraint violation: when resolving interface method "javax.servlet.jsp.JspApplicationContext.getExpressionFactory()Ljavax/el/ExpressionFactory;" the class loader (instance of org/apache/catalina/loader/WebappClassLoader) of the current class, com/sun/faces/config/ConfigureListener, and the class loader (instance of org/apache/catalina/loader/StandardClassLoader) for resolved class, javax/servlet/jsp/JspApplicationContext, have different Class objects for the type javax/el/ExpressionFactory used in the signature</p><p>    at com.sun.faces.config.ConfigureListener.registerELResolverAndListenerWithJsp(ConfigureListener.java:1595)</p><p>    at com.sun.faces.config.ConfigureListener.contextInitialized(ConfigureListener.java:419)</p><p>    at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:3972)</p><p>    at org.apache.catalina.core.StandardContext.start(StandardContext.java:4467)</p><p>    at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1045)</p><p>    at org.apache.catalina.core.StandardHost.start(StandardHost.java:785)</p><p>    at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1045)</p><p>    at org.apache.catalina.core.StandardEngine.start(StandardEngine.java:443)</p><p>    at org.apache.catalina.core.StandardService.start(StandardService.java:519)</p><p>    at org.apache.catalina.core.StandardServer.start(StandardServer.java:710)</p><p>    at org.apache.catalina.startup.Catalina.start(Catalina.java:581)</p><p>    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)</p><p>    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)</p><p>    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)</p><p>    at java.lang.reflect.Method.invoke(Method.java:597)</p><p>    at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:289)</p><p>    at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:414)</p><p> org.apache.catalina.core.StandardContext start "</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>  </p><p>I thought to use web services, I'm not sure if it will help.</p><p>The idea is to use functions, from my JBPM project, into a web application.</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>Any help please !</p></div>
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