Hi,
I'm trying use the tapestry tree component found in
http://wiki.apache.org/tapestry/Tapestry5TreeComponent
but I'm stuck with a very strange exception which is this:
java.lang.ClassCastException: uy.com.ipcontact.webjastconf.components.TreeNode
cannot be cast to uy.com.ipcontact.webjastconf.components.TreeNode
Java is trying to cast an object to its same class and failing to do so! This
works if I create the TreeNode object
in the tapestry page class but does not If I create the TreeNode objects in
another class and return them to
the page class via a procedure return value.
Here is some more context for the exception if it helps.
Caused by: org.apache.tapestry5.ioc.internal.util.TapestryException: Failure
reading parameter 'source' of component Index:tree_0:
uy.com.ipcontact.webjastconf.components.TreeNo
de cannot be cast to uy.com.ipcontact.webjastconf.components.TreeNode [at
context:Index.tml, line 3, column 73]
at
org.apache.tapestry5.internal.structure.ComponentPageElementImpl.invoke(ComponentPageElementImpl.java:932)
at
org.apache.tapestry5.internal.structure.ComponentPageElementImpl.access$200(ComponentPageElementImpl.java:50)
at
org.apache.tapestry5.internal.structure.ComponentPageElementImpl$13.render(ComponentPageElementImpl.java:499)
at
org.apache.tapestry5.internal.services.RenderQueueImpl.run(RenderQueueImpl.java:72)
... 64 more
Caused by: org.apache.tapestry5.ioc.internal.util.TapestryException: Failure
reading parameter 'source' of component Index:tree_0:
uy.com.ipcontact.webjastconf.components.TreeNo
de cannot be cast to uy.com.ipcontact.webjastconf.components.TreeNode [at
context:Index.tml, line 3, column 73]
at
org.apache.tapestry5.internal.structure.InternalComponentResourcesImpl.readParameter(InternalComponentResourcesImpl.java:290)
at
org.apache.tapestry5.internal.structure.InternalComponentResourcesImpl.readParameter(InternalComponentResourcesImpl.java:315)
at
uy.com.ipcontact.webjastconf.components.Tree._$read_parameter_source(Tree.java)
at uy.com.ipcontact.webjastconf.components.Tree.setupRender(Tree.java:55)
at uy.com.ipcontact.webjastconf.components.Tree.setupRender(Tree.java)
at
org.apache.tapestry5.internal.structure.ComponentPageElementImpl$13$1.run(ComponentPageElementImpl.java:495)
at
org.apache.tapestry5.internal.structure.ComponentPageElementImpl.invoke(ComponentPageElementImpl.java:917)
... 67 more
Caused by: org.apache.tapestry5.ioc.internal.util.TapestryException:
uy.com.ipcontact.webjastconf.components.TreeNode cannot be cast to
uy.com.ipcontact.webjastconf.components.T
reeNode [at context:Index.tml, line 3, column 73]
at org.apache.tapestry5.internal.bindings.PropBinding.get(PropBinding.java:57)
at
org.apache.tapestry5.internal.structure.InternalComponentResourcesImpl.readParameter(InternalComponentResourcesImpl.java:284)
... 73 more
Caused by: java.lang.ClassCastException:
uy.com.ipcontact.webjastconf.components.TreeNode cannot be cast to
uy.com.ipcontact.webjastconf.components.TreeNode
at uy.com.ipcontact.webjastconf.pages.Index.getTreeNodes(Index.java:46)
at $PropertyConduit_11fc8c4abe7.get($PropertyConduit_11fc8c4abe7.java)
at org.apache.tapestry5.internal.bindings.PropBinding.get(PropBinding.java:53)
... 74 more
Thank you for your time
Best regards
Jorge
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