PrimeFaces on Liferay 7

[Matteo Gnocchi, modificado 7 Anos atrás.]

Hi!
I'm trying to use PrimeFaces 6 on Liferay 7 (Tomcat Bundle).
I was able to develop a simple portlet following the com.liferay.faces.demo.primefaces.users.portlet demo.
The deployment ends without errors (says: Context initialized for contextPath=[/o/primefaces6-portlet]).
My trouble starts when I try to put the portlet on the portal and I get this error (no messages on log file):


java.lang.LinkageError: loader constraint violation: when resolving overridden method "com.liferay.faces.util.jsp.internal.PageContextStringImpl.getELContext()Ljavax/el/ELContext;" the class loader (instance of org/eclipse/osgi/internal/loader/EquinoxClassLoader) of the current class, com/liferay/faces/util/jsp/internal/PageContextStringImpl, and its superclass loader (instance of org/eclipse/osgi/internal/loader/EquinoxClassLoader), have different Class objects for the type javax/el/ELContext used in the signature

Can you help me?
Thx

[Vernon Singleton, modificado 7 Anos atrás.]

Hi Matteo,

Are you using Liferay 7 ga2?
What are the contents of the WEB-INF/lib for your portlet war?
Could you post the contents of your war's web.xml file?
Did you try building and deploying the Primefaces User portlet?

Looking forward to helping you with this.

Thanks,
Vernon

[Matteo Gnocchi, modificado 7 Anos atrás.]

Hi Vernon
Many thanks for your help!

What are the contents of the WEB-INF/lib for your portlet war?

com.liferay.faces.alloy-3.0.0-SNAPSHOT.jar
com.liferay.faces.bridge.ext-4.0.0-SNAPSHOT.jar
com.liferay.faces.portal-3.0.0-SNAPSHOT.jar
commons-fileupload-1.3.1.jar
jsf-api-2.1.29-05.jar
log4j-1.2.14.jar
com.liferay.faces.bridge.api-3.0.0-20160621.234649-27.jar
com.liferay.faces.bridge.impl-3.0.0-20160622.191403-61.jar
com.liferay.faces.util-2.0.0-20160614.202022-8.jar
commons-io-2.2.jar
jsf-impl-2.1.29-05.jar
primefaces-6.0.jar

Could you post the contents of your war's web.xml file?

<web-app xmlns="http://java.sun.com/xml/ns/javaee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd" version="3.0">
<context-param>
<param-name>com.sun.faces.expressionFactory</param-name>
<param-value>org.jboss.el.ExpressionFactoryImpl</param-value>
</context-param>
<context-param>
<param-name>javax.faces.PROJECT_STAGE</param-name>
<param-value>Development</param-value>
</context-param>
<context-param>
<param-name>facelets.SKIP_COMMENTS</param-name>
<param-value>true</param-value>
</context-param>
<context-param>
<param-name>primefaces.FONT_AWESOME</param-name>
<param-value>true</param-value>
</context-param>
<servlet>
<servlet-name>Faces Servlet</servlet-name>
<servlet-class>javax.faces.webapp.FacesServlet</servlet-class>
<load-on-startup>1</load-on-startup>
</servlet>
</web-app>

Did you try building and deploying the Primefaces User portlet?

At the moment not yet

[Vernon Singleton, modificado 7 Anos atrás.]

Hi Matteo,

Thanks for your clear response.

Matteo Gnocchi:

...
com.liferay.faces.alloy-3.0.0-SNAPSHOT.jar
com.liferay.faces.bridge.ext-4.0.0-SNAPSHOT.jar
com.liferay.faces.portal-3.0.0-SNAPSHOT.jar
commons-fileupload-1.3.1.jar
jsf-api-2.1.29-05.jar
log4j-1.2.14.jar
com.liferay.faces.bridge.api-3.0.0-20160621.234649-27.jar
com.liferay.faces.bridge.impl-3.0.0-20160622.191403-61.jar
com.liferay.faces.util-2.0.0-20160614.202022-8.jar
commons-io-2.2.jar
jsf-impl-2.1.29-05.jar
primefaces-6.0.jar

The first thing that I see is that you are using jsf-impl-2.1.29-05.jar , but Liferay 7 is only supporting JSF 2.2 for now. You can look here at the Liferay Faces Version Scheme. You will see that Liferay 7 will require master branch (version 5.0.x) com.liferay.faces.bridge.ext-5.0.0.jar for Liferay 7.0.x, and hence JSF 2.2.

I have not had a chance to go through your web.xml yet, but let's get the dependency versions fixed first. You should be able to follow the versions in version scheme.

Hope that helps.

- Vernon

[Matteo Gnocchi, modificado 7 Anos atrás.]

Hi Vernon
Following the new "Liferay Faces Version Scheme" I was able to add all the correct libraries.
Furthermore I found an error in my web.xml (due to an old configuration for liferay 6.2).
Now my primefaces6 portlet works on Liferay 7.
Thanks for your precious help!

[Vernon Singleton, modificado 7 Anos atrás.]

Hi Matteo,

Matteo Gnocchi:

Now my primefaces6 portlet works on Liferay 7.

Yay!

Glad that things are working for you now.

I hope you continue to enjoy developing using Liferay Faces!

- Vernon