Consider Company ABC, which released a project as open-source under the LGPL. The code is in Java, with packages such as 'com.abc.project'.
I am interested in forking this project (which dates to 2005) to update the technology to modern tools. There will be massive changes to the code. The new project will be licensed under LGPL. Edit: this is a web application, and not a library, for what that's worth.
I'm not sure if I may (or should?) retain the same Java package structure (e.g. 'com.abc.project')?
I suspect that I may do so under LGPL, but I wonder about trademark infringement or otherwise implying an endorsement from the company without their consent.