Yesterday IBM has shipped FP2 of IBM Domino 9.0.1. So today I found some time to download and install it on my Domino 9.0.1 server.
When the install was finished and started the Domino server again. In the console their appeared some stack traces saying that some jar files not can resolved, com.ibm.dots_220.127.116.1140404-1000.jar, and the DOTS task was shutdown.
The console also pointed me to the directory where the jar should be. In my case <Program directory>\osgi-dots\shared\eclipse\plugin
When I opened the directory on the file system, I noticed there were to com.ibm.dots….. jar files, with unique names.
I decided to remove the com.ibm.dots_18.104.22.16840404-1000.jar from this directory, and after a restart of the server the stack trace was gone and the DOTS task was back to normal.by