Sweet Corn and Bean and Orange Salsa (Emlyn)

1 can (15 oz.) yellow and white corn drained (I just used white corn)
2 small or 1 large (15 oz.) can mandarin oranges, drained
1 (15 oz.) can black beans, rinsed and drained
1 Haas avocado, peeled, pitted, and chopped
Juice of 1 lime (be generous)
1 C. loosely packed chopped cilantro
Kosher salt, to taste (2 tsp. or less – I thought 2 t. was too salty)
¼ C. finely chopped sweet onion
1 jalapeno pepper, seeded and minced (optional)

Combine all ingredients and chill.