[MSHADE-126] Running shade twice without clean leads to warnings and errors

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Won't Fix
• Affects Version/s: 1.7.1
• Assignee: Unassigned
• Reporter: Benson Margulies
• Created: 29/Jun/12 06:58
• Updated: 23/Dec/20 09:00
• Resolved: 27/Nov/16 02:26

Description

Frequently, when I run a build without 'clean', I get a torrent of unwanted 'duplicate symbol' errors from shade. More recently, when I did the same for a build that includes some shading that combines files from META-INF, this turned into a fatal error.

I've managed to produce a repro with maven 3.0.4. Just run 'mvn install' twice in a row to reproduce this. The impression it gives is that, somehow, the shaded jar from the previous build is used as the input, instead of a new jar built from scratch this time around.