Parse disallows default constructors which modify the state of the ParseObject.

Create an alternate constructor instead.

http://blog.parse.com/2013/05/30/parse-on-android-just-got-classier/

"Add your implementation. The only requirement is that you provide a default (i.e. zero-argument) constructor, which must not modify the ParseObject in a way that causes it to be dirty"

Java Lang Exceptions result if you try to query the Request table.