Please review HR fix for bug #235734

NullPointerException at QueryResultListCreator.getJavaCreationCode
https://netbeans.org/bugzilla/show_bug.cgi?id=235734

A few weeks ago an unrelated change introduced new parameters in one interface 
method and in the impl classes of the Java Persistence support one of this new 
parameter started to hide a field of the same name used so far. This parameter 
is not used and is actually always null. So now the Java Persistence 
components in GUI builder are not usable at all, the code generation always 
fails when there is some property set.

The fix is simple: giving the parameter different name (in fact I changed the 
field name).
http://hg.netbeans.org/jet-main/rev/a3f28af28d8a

Risk: very low, just returning back what was there before

Thanks,
Tomas