Richfaces Tree Error (ClassCastException)

[grdzeli_kaci]

hi all, i am trying to use this component, i have also developers guide,
i have created 4 beans, from the example:
1.Library
2.Album
3.Artist
4Song
after this i adder Library class into my faces-config.xml

 <managed-bean>
 <managed-bean-name>library</managed-bean-name>
 <managed-bean-class>com.liliko.billing.businesslayer.beans.common.Library</managed-bean-class>
 <managed-bean-scope>session</managed-bean-scope>
 </managed-bean>

then i added Richfaces jar into my application.xml as module:

 <module>
 <java>richfaces-3.0.1-SNAPSHOT.jar</java>
 </module>

after all my client code looks like :

<h:form id="menuId">
 <rich:tree style="width:300px" value="#{library.data}" var="item" nodeFace="#{item.type}">
 <rich:treeNode type="library">
 <h:outputText value="#{item.type}" />
 </rich:treeNode>
 <rich:treeNode type="artist">
 <h:outputText value="#{item.name}" />
 </rich:treeNode>
 <rich:treeNode type="album">
 <h:outputText value="#{item.title}" />
 </rich:treeNode>
 <rich:treeNode type="song">
 <h:outputText value="#{item.title}" />
 </rich:treeNode>
 </rich:tree>
 </h:form>

but i got an error like this :

java.lang.ClassCastException: com.liliko.billing.businesslayer.beans.common.Library
 at org.richfaces.component.AbstractTreeDataModel.setWrappedData(AbstractTreeDataModel.java:63)
 at org.richfaces.component.UITree.createDataModel(UITree.java:497)
 at org.richfaces.component.UITree.createDataModel(UITree.java:520)
 at org.ajax4jsf.ajax.repeat.UIDataAdaptor.getExtendedDataModel(UIDataAdaptor.java:522)
 at org.ajax4jsf.ajax.repeat.UIDataAdaptor.setRowKey(UIDataAdaptor.java:302)
 at org.ajax4jsf.ajax.repeat.UIDataAdaptor.setRowKey(UIDataAdaptor.java:287)
 at org.richfaces.renderkit.TreeRendererBase.writeContent(TreeRendererBase.java:389)
 at org.richfaces.renderkit.TreeRendererBase.encodeChildren(TreeRendererBase.java:283)
 at javax.faces.component.UIComponentBase.encodeChildren(UIComponentBase.java:809)

Library class isntance of org.richfaces.component.TreeNode,
Why i got ClassCastException?

there is not any nested exceptions,

can anybody help me ?
Regards,
Paata.

[grdzeli_kaci]

is there anybody who can help me ?
is anybody use tree component ?

[alexanderbelov]

Please, use the release version of RichFaces, not 3.0.1-SNAPSHOT.

And post your appearance, please.

[grdzeli_kaci]

ok, tried to use jboss richfaces 3.0 but i got the same error,
my apparance is :
1. JBoss 4.2.0GA Application Server
2. JBoss Seam Project
3. Also I use facelets
4.and of course ajax4jsf

but i got the same error, ather components wors fine, i think maybe i have something incorrect, beans i got from example, also i got usage example from developers guide, but could not resolve this issue.

[sergeysmirnov]

usually ClassCastException appears because of the correlation with other version of the same library loaded in the same Jboss server.

[kosmos]

The solution is to set false to true for attributes

<attribute name="Java2ClassLoadingCompliance">true</attribute>
<attribute name="UseJBossWebLoader">true</attribute>

in
\server\default\deploy\jbossweb-tomcat55.sar\META-INF\jboss-service.xml

[grdzeli_kaci]

"kosmos" wrote:
The solution is to set false to true for attributes

<attribute name="Java2ClassLoadingCompliance">true</attribute>
<attribute name="UseJBossWebLoader">true</attribute>

in
\server\default\deploy\jbossweb-tomcat55.sar\META-INF\jboss-service.xml

thank you, i have done this and another problem,
1. if i have richfaces-3.0.1-SNAPSHOT.jar all works fine, tree seems fine but when i tried to expand some node i got large and strange error:

01:52:01,483 FATAL [renderkit] org.richfaces.component.TreeRowKey; local class incompatible: stream classdesc serialVersionUID = -5575315920637054787, local class serialVersionUID = -4512368247744836825
java.io.InvalidClassException: org.richfaces.component.TreeRowKey; local class incompatible: stream classdesc serialVersionUID = -5575315920637054787, local class serialVersionUID = -4512368247744836825
 at java.io.ObjectStreamClass.initNonProxy(ObjectStreamClass.java:519)
 at java.io.ObjectInputStream.readNonProxyDesc(ObjectInputStream.java:1546)
 at java.io.ObjectInputStream.readClassDesc(ObjectInputStream.java:1460)
 at java.io.ObjectInputStream.readNonProxyDesc(ObjectInputStream.java:1546)
 at java.io.ObjectInputStream.readClassDesc(ObjectInputStream.java:1460)
 at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1693)
 at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1299)
...............................................................................................................
...............................................................................................................
Caused by: java.io.InvalidClassException: org.richfaces.component.TreeRowKey; local class incompatible: stream classdesc serialVersionUID = -5575315920637054787, local class serialVersionUID = -4512368247744836825
 at java.io.ObjectStreamClass.initNonProxy(ObjectStreamClass.java:519)
 at java.io.ObjectInputStream.readNonProxyDesc(ObjectInputStream.java:1546)
 at java.io.ObjectInputStream.readClassDesc(ObjectInputStream.java:1460)
 at java.io.ObjectInputStream.readNonProxyDesc(ObjectInputStream.java:1546)

2. if i change richfaces version to richfaces-3.0.0 i did not get any error but tre is not working (does not have any action exapand etx..) and text also is not shown :(,


Please help me :(

Regards,
Paata.