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From Marinó A. Jónsson (JIRA) <j...@apache.org>
Subject [jira] Created: (CXF-2695) NullPointerException when reading a soap encoded struct with a nested element that's nil
Date Fri, 05 Mar 2010 12:17:27 GMT
NullPointerException when reading a soap encoded struct with a nested element that's nil
----------------------------------------------------------------------------------------

                 Key: CXF-2695
                 URL: https://issues.apache.org/jira/browse/CXF-2695
             Project: CXF
          Issue Type: Bug
          Components: Aegis Databinding
    Affects Versions: 2.2.6
            Reporter: Marinó A. Jónsson


When reading a simple struct that has a nested (unqualified) element set to nil a NullPointerException
is thrown:
{code}
java.lang.NullPointerException
	at org.apache.cxf.aegis.type.basic.BeanTypeInfo.isNillable(BeanTypeInfo.java:384)
	at org.apache.cxf.aegis.type.basic.BeanType.readObject(BeanType.java:165)
{code}

This should be easily replicated by using the following xml for the StructTypeTest.testSimpleStruct()
test:

{code}
<b:shipping xmlns:b="urn:Bean" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
    <street>1234 Riverside Drive</street>
    <city>Gainesville</city>
    <state>FL</state>
    <zip xsi:nil="true"/>
</b:shipping>
{code}

Apparently the problem stems from the fact that when the element is nil it's handled without
involving the StructType (which takes care of "qualifying" the element name in other cases)
- the unqualified name of the element is sent to the BeanTypeInfo.isNillable() method, which
fails to find a Type for the name as a result.

I'm not sure how to solve this in a "clean" way - maybe extracting the "else" block that handles
nil elements in BeanType.readObject to a seperate overridable method thereby giving StructType
a chance to qualify the name before it's sent to the BeanTypeInfo.isNillable() method?


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