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    • [Guide] Add PPA support // OpenJDK7
    Community Discussion 662 views · 1 replies ·
    Tofloor
    poster avatar
    interfacenode
    deepin
    2016-09-19 13:35
    Author
    Edited by interfacenode at 2016-9-19 05:43

    Overview
    I noticed obtaining OpenJDK7 is very challenging under Deepin.


    When considering this problem I had the thought to just use Webupd8s PPA since it's always treated me good before.

    To enable PPA issue the following into terminal:
    1. sudo apt-get install software-properties-common python-software-properties
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    This should only take a few seconds, while you're at it may as well install Synaptic:
    1. sudo apt-get install synaptic
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    Great! Now to add a PPA right? We'll use Webupd8s OpenJDK one.
    1. sudo add-apt-repository ppa:webupd8team/java
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    Next we will use terminal to open a root session of itself:
    1. sudo terminal
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    From Root terminal, issue the following:
    1. dde-file-manager
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    Now we have a root shell, note this could be done with sudo dde-file-manager but I thought it would be funny to show a very basic way to show why root terminal is nice as a root launcher..

    Anyway, browse to the following in your root File Manager:
    1. /etc/apt/sources.list.d
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    Inside you'll see filenames with Yakkety

    We want to change them to xenial.

    Inside of these files, also change yakkety to xenial; for example openjdk-r-ubuntu-ppa-yakkety.list should be openjdk-r-ubuntu-ppa-xenial.list.
    The contents should be similar to:
    1. ubuntu xenial main
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    Before using an Ubuntu PPA these changes must occur, in terms of Ubuntu we are compatible with Xenial branch the most.

    After these changes issue to terminal:
    1. sudo apt-get update
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    And finally, to install our build of choice; in this case openJDK7 issue the following:
    1. sudo apt-get install openjdk-7-jdk
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    After check your java version by doing the following in terminal:
    1. java -version
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    Now uninstall the current Java8 with the following:

    1. sudo apt-get remove openjdk-8-jdk
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    or
    1. sudo apt-get remove oracle-java8*
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    interfacenode
    deepin
    2016-09-19 13:42
    #1
    PPA support is really useful, I realize some people may put me on blast for blatantly taking core parts of Ubuntu but all I care about is a better experience and of course productivity.

    Come on guys, give the developers OpenJDK7 :< some code requires it
    Don't make me go through such messed up stuff!
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