Description of problem: A null pointer exception is thrown in the logs when I attempt to make the change. Version-Release number of selected component (if applicable): Spacewalk 0.5, local build as of Feb 11 How reproducible: Always Steps to Reproduce: 1. Selected one system into the SSM 2. Clicked Channels -> Base Channel 3. In the "Desired Base Channel" list, I selected "System Default Base Channel" 4. When I hit confirm, I get an ISE Actual results: ISE in the UI. Null pointer exception in the logs: Caused by: java.lang.NullPointerException at com.redhat.rhn.frontend.action.channel.ssm.BaseSubscribeAction.confirmUpdateBaseChannels(BaseSubscribeAction.java:172) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) [snip] Expected results: I'm not fully sure. It's already subscribed to the default channel, so I'm expecting either a confirmation that it was successful or a message that no changes were made. Additional info:
This might be related to BZ 420601.
Another note, this only seems to happen if it is already subscribed to the default channel and I select to subscribe to the default channel. I was able to change to a user created channel and then back to the default channel successfully.
It looks like this had something to do with the way I syncced my channels. I tried on a 5.3 build that was syncced properly and I don't see the issue.