[tbb-bugs] #30089 [Applications/Tor Browser]: Use apksigner instead of jarsigner

[Tor Bug Tracker & Wiki]

#30089: Use apksigner instead of jarsigner
-------------------------------------+-------------------------------------
     Reporter:  boklm                |      Owner:  tbb-team
         Type:  task                 |     Status:  new
     Priority:  Medium               |  Milestone:
    Component:  Applications/Tor     |    Version:
  Browser                            |   Keywords:  tbb-rbm,
     Severity:  Normal               |  TorBrowserTeam201904
Actual Points:                       |  Parent ID:  #29981
       Points:                       |   Reviewer:
      Sponsor:                       |
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 In `projects/tor-browser/build.android` we currently use jarsigner to sign
 the apk.

 In order to make the build reproducible, we run it with faketime. However
 doing that leads to a stalled build on Stretch, so we are using Buster as
 a workaround.

 According to eighthave this issue might be solved by using apksigner
 instead of jarsigner:
 https://trac.torproject.org/projects/tor/ticket/29981#comment:4

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/30089>
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