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https://issues.apache.org/jira/browse/XMLBEANS-609?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17544985#comment-17544985
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Peter Keller commented on XMLBEANS-609:
---------------------------------------
In my hands, the attached file "609.patch" fixes the issue: the difference in
the generated code before and after is:
{{diff -ru build2/java/com/example/easypo/impl/ProductTypeImpl.java
build/java/com/example/easypo/impl/ProductTypeImpl.java}}
{{--- build2/java/com/example/easypo/impl/ProductTypeImpl.java 2022-06-01
16:17:58.363935939 +0100}}
{{+++ build/java/com/example/easypo/impl/ProductTypeImpl.java 2022-06-01
16:18:18.239843488 +0100}}
{{@@ -26,7 +26,7 @@}}
{{ /**}}
{{ * Implementation method for interface mypackage.ProductFooHandler}}
{{ */}}
{{- public T getFoo(java.lang.Class<T> type) {}}
{{+ public <T extends String> T getFoo(java.lang.Class<T> type) {}}
{{ return mypackage.ProductFooHandler.getFoo(this, type);}}
This is a rather superficial fix of course, and there are more complex cases
that this probably won't work for, but a more general solution should wait for
a future release, I guess rather than holding up the release of 5.1.0
> Parameterised return types not handled correctly in interface extensions
> ------------------------------------------------------------------------
>
> Key: XMLBEANS-609
> URL: https://issues.apache.org/jira/browse/XMLBEANS-609
> Project: XMLBeans
> Issue Type: Bug
> Components: Binding
> Reporter: Peter Keller
> Priority: Major
> Fix For: Version 5.1.0
>
> Attachments: 609.patch, xmlbeans-ie-generic.tar
>
>
> The attached test case fails because of the parameterised return type of the
> interface extension method:
> {{/home/pkeller/Projects/Workflow/xmlbeans-upgrade/xmlbeans-ie-generic/build/java/com/example/easypo/impl/ProductTypeImpl.java:29:
> error: cannot find symbol
> public T getFoo(java.lang.Class<T> type) {
> ^
> symbol: class T
> location: class ProductTypeImpl
> /home/pkeller/Projects/Workflow/xmlbeans-upgrade/xmlbeans-ie-generic/build/java/com/example/easypo/impl/ProductTypeImpl.java:29:
> error: cannot find symbol
> public T getFoo(java.lang.Class<T> type) {
> ^
> symbol: class T
> location: class ProductTypeImpl
> 2 errors}}
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