[jira] [Created] (TAP5-2813) NPE when @Cached applied to method returning a generic type in multiple classloader mode

[Thiago Henrique De Paula Figueiredo (Jira)]

Thiago Henrique De Paula Figueiredo created TAP5-2813:
---------------------------------------------------------

             Summary: NPE when @Cached applied to method returning a generic 
type in multiple classloader mode
                 Key: TAP5-2813
                 URL: https://issues.apache.org/jira/browse/TAP5-2813
             Project: Tapestry 5
          Issue Type: Bug
          Components: tapestry-core
    Affects Versions: 5.9.0
            Reporter: Thiago Henrique De Paula Figueiredo


With production mode on, methods annotated with @Cached and returning a generic 
type, for example {{@Cached public SomeType<T> getData()}} , would throw this 
error:
{noformat}
Caused by: 
org.apache.tapestry5.beanmodel.internal.services.PropertyExpressionException: 
Exception generating conduit for expression 'zoneId': 
java.lang.NullPointerException: Cannot invoke "Object.getClass()" because 
"formal" is null      at 
org.apache.tapestry5.beanmodel.internal.services.PropertyConduitSourceImpl.build(PropertyConduitSourceImpl.java:1531)
      at 
org.apache.tapestry5.beanmodel.internal.services.PropertyConduitSourceImpl.create(PropertyConduitSourceImpl.java:1441)
      at $PropertyConduitSource_b6f1dc0fd89.create(Unknown Source)      at 
org.apache.tapestry5.internal.bindings.PropBindingFactory.newBinding(PropBindingFactory.java:56)
      at $BindingFactory_b6f1dc10776.newBinding(Unknown Source)      at 
$BindingFactory_b6f1dc1076e.newBinding(Unknown Source)      at 
org.apache.tapestry5.internal.services.BindingSourceImpl.newBinding(BindingSourceImpl.java:82)
      ... 107 more
Caused by: java.lang.RuntimeException: java.lang.NullPointerException: Cannot 
invoke "Object.getClass()" because "formal" is null      at 
org.apache.tapestry5.beanmodel.internal.services.PropertyAccessImpl.buildAdapter(PropertyAccessImpl.java:117)
(...){noformat}



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