NullPointerException in IndexTrigger

[Karl �ie]

Hi there, just got around a NPE in both slide-2.1 and slide-2.2pre that  
is thrown in IndexTrigger upon drop/delete index.

i changed line 115 in IndexTrigger.java:
from :
indexers[j].dropIndex(
        new Uri(delete[i].getNamespace(),
        delete[i].getUri()),
        delete[i].getRevisionDescriptor().getRevisionNumber()
);
to :
indexers[j].dropIndex(
	new Uri(delete[i].getNamespace(),
	delete[i].getUri()),
	delete[i].getRevisionDescriptor()==null?null: 
delete[i].getRevisionDescriptor().getRevisionNumber()
);

as you can see getRevisionDescriptor() returns NULL and throws a NPE  
when we try to do getRevisionNumber() on it.

The thing is that im a complete newbie to Slide so i wonder if this is  
just a problem with IndexTrigger or if this is supposed to be right  
because the getRevisionDescriptor() shouldnt return NULL. My index only  
needs the getUri() result but i just wanted to ask?

Mvh Karl �ie
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