Stack Exchange network consists of 175 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers.
I just arrived to Sweden and did not get my passport stamped. However, it got stamped in Germany (I flew to Sweden through Germany)
Is this normal?
Yes. Since Germany and Sweden are both in the Schengen area, you are not going through immigration at all when travelling from Germany to Sweden.
Required, but never shown