question: synchronized public ICommitRecord findNext ( final long timestamp ) { if ( timestamp == ITx . UNISOLATED ) { throw new IllegalArgumentException ( "Can not specify 'UNISOLATED' as timestamp" ) ; } if ( timestamp == ITx . READ_COMMITTED ) { throw new IllegalArgumentException ( "Can not specify 'READ_COMMITTED' as timestamp" ) ; } final long index = findIndexOf ( Math . abs ( timestamp ) ) + 1 ; if ( index == nentries ) { return null ; } return valueAtIndex ( index ) ; }
target:  Find the first commit record strictly greater than the timestamp.