public boolean hasRow(int row) {
        if (row < 0) {
            return false;
        }
        return occupied.get(row);
    }
returns true if the given row contains an object
@param row the row in the table
@return true if the given row contains an object
Ghidra/Framework/Generic/src/main/java/ghidra/util/datastruct/ManagedDataTable.java