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From "Josh Canfield (JIRA)" <j...@apache.org>
Subject [jira] Resolved: (TAP5-822) Strange error when trying to reference property from hierarchy of generic classes
Date Sun, 26 Dec 2010 20:01:47 GMT

     [ https://issues.apache.org/jira/browse/TAP5-822?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Josh Canfield resolved TAP5-822.
--------------------------------

       Resolution: Fixed
    Fix Version/s: 5.2

> Strange error when trying to reference property from hierarchy of generic classes
> ---------------------------------------------------------------------------------
>
>                 Key: TAP5-822
>                 URL: https://issues.apache.org/jira/browse/TAP5-822
>             Project: Tapestry 5
>          Issue Type: Bug
>          Components: tapestry-core
>    Affects Versions: 5.1.0.5
>            Reporter: Vjeran Marcinko
>             Fix For: 5.2
>
>
> In my page template I want to print "timeRange" property value of my custom entity object
that is generic subclass of some other generic superclass.
> Time range value: ${openReservationSubrequest.timeRange} 
> Inside my page I have just :
> public OpenReservationSubrequest getOpenReservationSubrequest() {
>     return openReservationSubrequest;
> }
> ..and my class is defined like this where superclass (TimeRangedReservationSubrequest)
contains "timeRange" property:
> public abstract class OpenReservationSubrequest<A extends Access, R extends Reservation<A>>
extends TimeRangedReservationSubrequest<R> {
> Tapestry 5.1.0.5 raises following error:
> Caused by: org.apache.tapestry5.ioc.internal.util.TapestryException: Could not convert
'openReservationSubrequest.timeRange' into a component parameter binding: java.lang.ArrayIndexOutOfBoundsException:
1
> 	at org.apache.tapestry5.internal.services.BindingSourceImpl.newBinding(BindingSourceImpl.java:85)
[tapestry-core-5.1.0.5.jar:na]
> 	at $BindingSource_1234622cb0f.newBinding($BindingSource_1234622cb0f.java) [tapestry-ioc-5.1.0.5.jar:na]
> 	at org.apache.tapestry5.internal.services.PageElementFactoryImpl.newExpansionElement(PageElementFactoryImpl.java:165)
[tapestry-core-5.1.0.5.jar:na]
> 	at $PageElementFactory_1234622cb06.newExpansionElement($PageElementFactory_1234622cb06.java)
[tapestry-ioc-5.1.0.5.jar:na]
> 	at org.apache.tapestry5.internal.pageload.PageLoaderImpl$15.execute(PageLoaderImpl.java:1033)
[tapestry-core-5.1.0.5.jar:na]
> 	at org.apache.tapestry5.internal.pageload.ComponentAssemblerImpl.runActions(ComponentAssemblerImpl.java:202)
[tapestry-core-5.1.0.5.jar:na]
> 	at org.apache.tapestry5.internal.pageload.ComponentAssemblerImpl.assembleRootComponent(ComponentAssemblerImpl.java:88)
[tapestry-core-5.1.0.5.jar:na]
> 	... 99 common frames omitted
> Caused by: java.lang.RuntimeException: java.lang.ArrayIndexOutOfBoundsException: 1
> 	at org.apache.tapestry5.ioc.internal.services.PropertyAccessImpl.buildAdapter(PropertyAccessImpl.java:96)
[tapestry-ioc-5.1.0.5.jar:na]
> 	at org.apache.tapestry5.ioc.internal.services.PropertyAccessImpl.getAdapter(PropertyAccessImpl.java:65)
[tapestry-ioc-5.1.0.5.jar:na]
> 	at $PropertyAccess_1234622cabc.getAdapter($PropertyAccess_1234622cabc.java) [tapestry-ioc-5.1.0.5.jar:na]
> 	at org.apache.tapestry5.internal.services.PropertyConduitSourceImpl$PropertyConduitBuilder.infoForPropertyNode(PropertyConduitSourceImpl.java:939)
[tapestry-core-5.1.0.5.jar:na]
> 	at org.apache.tapestry5.internal.services.PropertyConduitSourceImpl$PropertyConduitBuilder.infoForPropertyOrMethod(PropertyConduitSourceImpl.java:932)
[tapestry-core-5.1.0.5.jar:na]
> 	at org.apache.tapestry5.internal.services.PropertyConduitSourceImpl$PropertyConduitBuilder.createGetterAndSetter(PropertyConduitSourceImpl.java:421)
[tapestry-core-5.1.0.5.jar:na]
> 	at org.apache.tapestry5.internal.services.PropertyConduitSourceImpl$PropertyConduitBuilder.createAccessors(PropertyConduitSourceImpl.java:407)
[tapestry-core-5.1.0.5.jar:na]
> 	at org.apache.tapestry5.internal.services.PropertyConduitSourceImpl$PropertyConduitBuilder.createInstance(PropertyConduitSourceImpl.java:260)
[tapestry-core-5.1.0.5.jar:na]
> 	at org.apache.tapestry5.internal.services.PropertyConduitSourceImpl.build(PropertyConduitSourceImpl.java:1205)
[tapestry-core-5.1.0.5.jar:na]
> 	at org.apache.tapestry5.internal.services.PropertyConduitSourceImpl.create(PropertyConduitSourceImpl.java:1080)
[tapestry-core-5.1.0.5.jar:na]
> 	at $PropertyConduitSource_1234622cb27.create($PropertyConduitSource_1234622cb27.java)
[tapestry-ioc-5.1.0.5.jar:na]
> 	at org.apache.tapestry5.internal.bindings.PropBindingFactory.newBinding(PropBindingFactory.java:49)
[tapestry-core-5.1.0.5.jar:na]
> 	at $BindingFactory_1234622cb28.newBinding($BindingFactory_1234622cb28.java) [tapestry-ioc-5.1.0.5.jar:na]
> 	at $BindingFactory_1234622cb20.newBinding($BindingFactory_1234622cb20.java) [tapestry-ioc-5.1.0.5.jar:na]
> 	at org.apache.tapestry5.internal.services.BindingSourceImpl.newBinding(BindingSourceImpl.java:81)
[tapestry-core-5.1.0.5.jar:na]
> 	... 105 common frames omitted
> Caused by: java.lang.ArrayIndexOutOfBoundsException: 1
> 	at org.apache.tapestry5.ioc.internal.util.GenericsUtils.extractGenericReturnType(GenericsUtils.java:75)
[tapestry-ioc-5.1.0.5.jar:na]
> 	at org.apache.tapestry5.ioc.internal.services.ClassPropertyAdapterImpl.<init>(ClassPropertyAdapterImpl.java:47)
[tapestry-ioc-5.1.0.5.jar:na]
> 	at org.apache.tapestry5.ioc.internal.services.PropertyAccessImpl.buildAdapter(PropertyAccessImpl.java:92)
[tapestry-ioc-5.1.0.5.jar:na]
> 	... 119 common frames omitted
> Everything works fine if I expose my page property as superclass such as :
> public TimeRangedReservationSubrequest getTimeRangedReservationSubrequest()
>     return openReservationSubrequest;
> }
> and use 
> ${timeRangedReservationSubrequest.timeRange}

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