A DESCRIPTION OF THE PROBLEM :
There is 'ResulSetMetaData' mentioned – letter 't' is missing in the interface name. The whole sentence looks like this:
The number, types and properties of a ResultSet object's columns are provided by the ResulSetMetaData object returned by the ResultSet.getMetaData method.

EXPECTED VERSUS ACTUAL BEHAVIOR :
EXPECTED -
The interface name should be ResultSetMetaData and the sentence should look like:
The number, types and properties of a ResultSet object's columns are provided by the ResultSetMetaData object returned by the ResultSet.getMetaData method.
ACTUAL -
The number, types and properties of a ResultSet object's columns are provided by the ResulSetMetaData object returned by the ResultSet.getMetaData method.

URL OF FAULTY DOCUMENTATION :
http://download.oracle.com/javase/6/docs/api/java/sql/ResultSet.html