CREATE TABLE table_42050 ("Outcome" TEXT, "Year" TEXT, "Surface" TEXT, "Opponent" TEXT, "Score" TEXT)

What year was the match were xavier malisse was the runner-up against lleyton hewitt?
SELECT "Year" FROM table_42050 WHERE "Outcome" = 'runner-up' AND "Opponent" = 'lleyton hewitt'
SELECT "Year" FROM "table_42050" WHERE "Opponent" = 'lleyton hewitt' AND "Outcome" = 'runner-up'