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From "Daniel Kulp (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (CXF-4711) JAXBContextInitializer addType stopped handling recursive types (StackOverflow)
Date Wed, 19 Dec 2012 15:03:12 GMT

    [ https://issues.apache.org/jira/browse/CXF-4711?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13536010#comment-13536010
] 

Daniel Kulp commented on CXF-4711:
----------------------------------


I haven't been able to reproduce this based on the information above.  I'll need a more thorough
test case.  I tried a simple thing like:

{code:java}

    @Test
    public void testResursiveType() throws Exception {
        Set<Class<?>> classes = new HashSet<Class<?>>();
        Collection<Object> typeReferences = new ArrayList<Object>();
        JAXBContextInitializer init = new JAXBContextInitializer(null, classes, typeReferences);
        init.addClass(Type2.class);   //note: made this package protected to be able to call
it for the test
        System.out.println(classes);
    }
    
    public interface RecursiveType<T extends RecursiveType<T>> {
        
    }
    
    public static class Type1 implements RecursiveType<Type1> {
    }
    
    public static class Type2 extends Type1 {
    }

{code}

And played around with various implements, extends, interfaces/classes, etc....  and was not
able to reproduce. 
                
> JAXBContextInitializer addType stopped handling recursive types (StackOverflow) 
> --------------------------------------------------------------------------------
>
>                 Key: CXF-4711
>                 URL: https://issues.apache.org/jira/browse/CXF-4711
>             Project: CXF
>          Issue Type: Bug
>          Components: JAXB Databinding
>    Affects Versions: 2.7.1
>            Reporter: Thijs Elferink
>            Priority: Blocker
>              Labels: CXF, Databinding, JAXB
>             Fix For: NeedMoreInfo
>
>
> Upgrading from 2.7.0. to 2.7.1 uncovers a stackoverflow in JAXBContextInitializer.addType
when using a recursive type definition like
> AddressEntity<T extends AddressEntity<T>>
> java.lang.StackOverflowError
> 	at java.lang.Class.getDeclaredConstructor(Class.java:2001)
> 	at org.apache.cxf.common.util.ReflectionUtil$2.run(ReflectionUtil.java:67)
> 	at org.apache.cxf.common.util.ReflectionUtil$2.run(ReflectionUtil.java:64)
> 	at java.security.AccessController.doPrivileged(Native Method)
> 	at org.apache.cxf.common.util.ReflectionUtil.getDeclaredConstructor(ReflectionUtil.java:64)
> 	at org.apache.cxf.common.jaxb.JAXBUtils.getValidClass(JAXBUtils.java:518)
> 	at org.apache.cxf.jaxb.JAXBContextInitializer.addClass(JAXBContextInitializer.java:274)
> 	at org.apache.cxf.jaxb.JAXBContextInitializer.addType(JAXBContextInitializer.java:222)
> 	at org.apache.cxf.jaxb.JAXBContextInitializer.addType(JAXBContextInitializer.java:212)
> 	at org.apache.cxf.jaxb.JAXBContextInitializer.addType(JAXBContextInitializer.java:225)
> 	at org.apache.cxf.jaxb.JAXBContextInitializer.addType(JAXBContextInitializer.java:212)
> 	at org.apache.cxf.jaxb.JAXBContextInitializer.addType(JAXBContextInitializer.java:260)
> 	at org.apache.cxf.jaxb.JAXBContextInitializer.addType(JAXBContextInitializer.java:212)
> 	at org.apache.cxf.jaxb.JAXBContextInitializer.addType(JAXBContextInitializer.java:227)
> 	at org.apache.cxf.jaxb.JAXBContextInitializer.addType(JAXBContextInitializer.java:212)
> 	at org.apache.cxf.jaxb.JAXBContextInitializer.addType(JAXBContextInitializer.java:260)
> 	at org.apache.cxf.jaxb.JAXBContextInitializer.addType(JAXBContextInitializer.java:212)
> 	at org.apache.cxf.jaxb.JAXBContextInitializer.addType(JAXBContextInitializer.java:227)
> 	at org.apache.cxf.jaxb.JAXBContextInitializer.addType(JAXBContextInitializer.java:212)
> 	at org.apache.cxf.jaxb.JAXBContextInitializer.addType(JAXBContextInitializer.java:260)
> etc....

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