It doesn't crash the extractor, I just commented out because it would not extract that piece when it was null, the line states that it was not possible and then keeps on extracting what it can.

On Mar 10, 2013, at 9:33 PM, David Whitlock <notifications@github.com> wrote:

> In jmx-extractor/GarbageCollecting.xml:
> 
> > +<Settings>
> > +  <pollingRate>2</pollingRate>
> > +  <folderLocation>extracted\\</folderLocation>
> > +  <url></url>
> > +  <BeanList>
> > +    <Bean>
> > +      <name>java.lang:type=GarbageCollector,name=PS MarkSweep</name>
> > +      <alias>PSMarkSweepGCExample</alias>
> > +      <AttributeList>
> > +        <Attribute>
> > +          <name>CollectionCount</name>
> > +        </Attribute>
> > +        <Attribute>
> > +          <name>CollectionTime</name>
> > +        </Attribute>
> > +		<!-- Null pointer possible
> Why does this get a null pointer? If the attribute doesn't exist, the a warning should be logged or something.
> 
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