[Simple-support] Avoiding NullPointerException

[Alan D. <Ala...@zn...>]

Niall,

Thanks for the recent update to 2.0.3.   It wasn't holding me up but it is great to get past that problem.

On to something else:  I think this has been discussed before, but I couldn't find it in the archives.  It has to do with serializing the empty String value: "".  When reading it back in, you get a NullPointerException if the element is not marked required=false.

So how do we deal with that in a collection?   My test case produces the following document:

<simpleBug1 id="0">
   <test1 id="1">
      <data id="2">
         <entry>
            <string id="3">key1</string>
            <object class="java.lang.String" id="4">value</object>
         </entry>
         <entry>
            <string id="5">key2</string>
            <object class="java.lang.String" id="6"></object>
         </entry>
      </data>
   </test1>
</simpleBug1>

Reading it back in gets:

	Exception: java.lang.NullPointerException
	java.lang.NullPointerException
        	at org.simpleframework.xml.core.Traverser.read(Traverser.java:79)
        	at org.simpleframework.xml.core.CompositeValue.read(CompositeValue.java:102)
        	at org.simpleframework.xml.core.CompositeMap.populate(CompositeMap.java:177)

etc.  If you want me to send you the test case let me know, but again I don't know if this is a problem with simple or something I sould be doing but ain't.  Thanks again.

-- 
Alan Deikman