Why should java package name be lowercase?

Question

Actually this is completely theoretic question. But it's interesting why java specification don't allow uppercase characters letters in package and cause write something like this:

com.mycompany.projname.core.remotefilesystemsynchronization.*

instead of

com.myCompanyName.projName.core.remoteFileSystemSynchronization.*

Answer 1

Directly from Oracle Docs

Package names are written in all lower case to avoid conflict with the names of classes or interfaces.