We don't really know what Jesus believed, but let us suppose the Bible gives an accurate report. Then it appears that Jesus believed that the "world" was going to end in the first century and there would be a physical resurrection and all things would be transformed so that the "kingdom of heaven" would be manifest on earth with the 12 disciples ruling over the 12 tribes. We know this because he said all sorts of things like "Verily I say unto you, There be some standing here, which shall not taste of death, till they see the Son of man coming in his kingdom" (Matt 16:28). Therefore, Jesus was wrong, just like Harold Camping. But Jesus did not have "shit-for-brains" like Harold Camping because he did not make up an absurd excuse by saying that all his predictions came true in every way except they didn't really happen.
Do you see the difference?