Tried several ways, but can not get code completion (available while typing or using ctrl+space) for the code generated in spring roo project in STS. Tried enabling/disabling AspectJ tooling, Maven dependencies etc. Tried Preferences-> JDT Weaving, enable/disable, also tried "re-index now".
I have not done any custom configuration of either STS or AspectJ or Spring Roo itself. Code completion never worked in the STS installation.