Java 8 如果jessie Backport不再有效，如何在Debian 8上安装Java 8或更高版本？

我试过以下两种方法，但没有成功

sudo add-apt-repository ppa:webupd8team/java
sudo apt-get update
sudo apt-get install oracle-java8-installer

FROM debian:jessie
RUN echo deb-src http://security.debian.org/ jessie/updates main > /etc/apt/sources.list.d/extra_debian.list  >> /etc/apt/sources.list.d/extra_debian.list
RUN apt-get update && apt-get install -y openjdk-8-jdk

我听到一个错误的说法

Unable to find the oracle8-java-installer package

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我也尝试了openjdk-8-jdk，但没有成功

sudo add-apt-repository ppa:webupd8team/java
sudo apt-get update
sudo apt-get install oracle-java8-installer

FROM debian:jessie
RUN echo deb-src http://security.debian.org/ jessie/updates main > /etc/apt/sources.list.d/extra_debian.list  >> /etc/apt/sources.list.d/extra_debian.list
RUN apt-get update && apt-get install -y openjdk-8-jdk

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有没有选择oracle java 8的特定用例？你可以试试openjdk。如果还没有安装openjdk-8-jdk，请使用命令

sudo-apt-get-install-openjdk

安装它。@AsSiDe我也试过了。请看我的最新问题