[MacPorts] #56000: Install Java on the buildbot workers

[MacPorts]

#56000: Install Java on the buildbot workers
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  Reporter:  ryandesign      |      Owner:  admin@…
      Type:  enhancement     |     Status:  new
  Priority:  Normal          |  Milestone:
 Component:  server/hosting  |    Version:
Resolution:                  |   Keywords:
      Port:                  |
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Comment (by mattbishop):

 I adopted this java PortGroup in the above PR and it works well. Thanks!

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Ticket URL: <https://trac.macports.org/ticket/56000#comment:6>
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