Was Jonah wrong as a prophet?

Jonah was called to go to Nineveh and preach of their being destroyed in 40 days but instead took a voyage in the opposite direction to not fulfill his calling. After Jonah repents and is given a second chance He is sent to Nineveh to cry out against them because of their wickedness. This was a conditional proclamation to give Nineveh a chance to repent. Scripture says he spoke what God told him to (3:2). So if Jonah was wrong, so was God. God sent Jonah with a message of judgment to give them a chance to repent. Later Jesus refers to Jonah, something he would not do if he failed in his prophecy.

Jonah 4:1-2: “But it displeased Jonah exceedingly, and he became angry. So he prayed to the LORD, and said, "Ah, LORD, was not this what I said when I was still in my country? Therefore I fled previously to Tarshish; for I know that You are a gracious and merciful God, slow to anger and abundant in lovingkindness, One who relents from doing harm.” 

Jonah knew God would have mercy on the evil Ninevites, and Jonah was not feeling as merciful.

Jonah 4:4-8 Then the LORD said, "Is it right for you to be angry?"

In v. 5-8 “God prepared a plant and made it come up over Jonah, that it might be shade for his head to deliver him from his misery. So Jonah was very grateful for the plant.

But the next morning “God prepared a worm, and it so damaged the plant that it withered.”

And it happened, when the sun arose, that God prepared a vehement east wind; and the sun beat on Jonah's head, so that he grew faint. Then he wished death for himself, and said, "It is better for me to die than to live."

Jonah 4:9-11: Then God said to Jonah, "Is it right for you to be angry about the plant?" And he said, "It is right for me to be angry, even to death!" But the LORD said, "You have had pity on the plant for which you have not labored, nor made it grow, which came up in a night and perished in a night. "And should I not pity Nineveh, that great city, in which are more than one hundred and twenty thousand persons who cannot discern between their right hand and their left-- and much livestock?"

God shows he cares for us as well as the animals. He did this to show Jonah his heart, how he cared more for a plant that brought him comfort from the heat but not for peoples soul. The theme of Jonah's letter is based on God’s character of mercy. Judgment would come unless Nineveh repented, and they did, but not to Jonahs liking.

There is a principle at work here to bring men to repentance, God gives a warning for man to avoid judgment. The prophet Jeremiah 18:7-10: “At what instant I shall speak concerning a nation, and concerning a kingdom, to pluck up, and to pull down, and to destroy it; If that nation, against whom I have pronounced, turn from their evil, I will repent of the evil that I thought to do unto them.”

It is the same that he sent the prophet Ezekiel to Israel, (Ezek.33:11) "Say to them: 'As I live,' says the Lord GOD, 'I have no pleasure in the death of the wicked, but that the wicked turn from his way and live. Turn, turn from your evil ways! For why should you die, O house of Israel?'