blocks|key|78551|text|新的命令现在是：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|78552|brew+install+--cask+homebrew/cask-versions/adoptopenjdk8|offset|length|style|CODE|78553|entityMap^0|0|0|1K|0^^$0|@$1|2|3|4|5|6|7|J|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|K|8|@$D|L|E|M|F|G]]|9|@]|A|$]]|$1|H|3|-4|5|6|7|N|8|@]|9|@]|A|$]]]|I|$]]

New command is now :
<code>brew install --cask homebrew/cask-versions/adoptopenjdk8</code>

blocks|key|1527713|text|这已经作为一个github问题得到了回答：https://github.com/Homebrew/homebrew-cask-versions/issues/7253|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|1527714|TLDR：java8伪制品是指已不再支持/可用的Oracle发行版。如果您确实需要Java1.8而不是最新版本，您可以查看AdoptOpenJDK/homebrew-openjdk。|style|CODE|1527715|entityMap|0|LINK|mutability|MUTABLE|url|https://github.com/Homebrew/homebrew-cask-versions/issues/7253|1|https://github.com/AdoptOpenJDK/homebrew-openjdk^0|L|1Q|0|0|5|5|1P|T|1P|T|1|0^^$0|@$1|2|3|4|5|6|7|R|8|@]|9|@$A|S|B|T|1|U]]|C|$]]|$1|D|3|E|5|6|7|V|8|@$A|W|B|X|F|G]|$A|Y|B|Z|F|G]]|9|@$A|10|B|11|1|12]]|C|$]]|$1|H|3|-4|5|6|7|13|8|@]|9|@]|C|$]]]|I|$J|$5|K|L|M|C|$N|O]]|P|$5|K|L|M|C|$N|Q]]]]

This has already been answered as a github issue: <a href="https://github.com/Homebrew/homebrew-cask-versions/issues/7253" rel="noreferrer">https://github.com/Homebrew/homebrew-cask-versions/issues/7253</a>

TLDR: the <code>java8</code> artefact refers to the Oracle distribution, which has ceased being supported/available. If you really need java 1.8 instead of the latest versions you can take a look at <a href="https://github.com/AdoptOpenJDK/homebrew-openjdk" rel="noreferrer"><code>AdoptOpenJDK/homebrew-openjdk</code></a>.

blocks|key|1527754|text|命令现在是brew+install+homebrew/cask-versions/adoptopenjdk8+--cask|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|1527755|entityMap^0|5|1K|0^^$0|@$1|2|3|4|5|6|7|H|8|@$9|I|A|J|B|C]]|D|@]|E|$]]|$1|F|3|-4|5|6|7|K|8|@]|D|@]|E|$]]]|G|$]]

The command is now <code>brew install homebrew/cask-versions/adoptopenjdk8 --cask</code>

blocks|key|78741|text|brew+install+homebrew/cask-versions/adoptopenjdk8+--cask|type|code-block|depth|inlineStyleRanges|entityRanges|data|syntax|javascript|78742|在最新的变化自制木桶将不得不在最后。|unstyled|78743|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$B|C]]|$1|D|3|E|5|F|7|J|8|@]|9|@]|A|$]]|$1|G|3|-4|5|F|7|K|8|@]|9|@]|A|$]]]|H|$]]

<pre><code>brew install homebrew/cask-versions/adoptopenjdk8 --cask
</code></pre>
In the latest changes of homebrew cask will have to be at the last.

blocks|key|1527960|text|AdoptOpenJDK已被废弃，并从Adoptium过渡到Eclipse。请看这篇博文：https://blog.adoptopenjdk.net/2021/03/transition-to-eclipse-an-update/|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|1527961|要使用Homebrew安装Temurin+Java+8+(又名1.8+)，您可以使用：|1527962|brew+tap+homebrew/cask-versions
brew+install+--cask+temurin8|code-block|syntax|javascript|1527963|如果您已经使用其他答案中的命令安装了AdoptOpenJDK，您应该首先卸载它，使用以下方法：|1527964|brew+uninstall+--cask+adoptopenjdk8|style|CODE|1527965|您还可以下载一个用于手动安装的.pkg+(+AdoptOpenJDK上的前一个链接现在指向这里)：https://adoptium.net/?variant=openjdk8|1527966|entityMap|0|LINK|mutability|MUTABLE|url|https://blog.adoptopenjdk.net/2021/03/transition-to-eclipse-an-update/|1|https://adoptium.net/?variant=openjdk8^0|19|1Y|0|0|0|0|0|0|Z|0|1D|12|1|0^^$0|@$1|2|3|4|5|6|7|12|8|@]|9|@$A|13|B|14|1|15]]|C|$]]|$1|D|3|E|5|6|7|16|8|@]|9|@]|C|$]]|$1|F|3|G|5|H|7|17|8|@]|9|@]|C|$I|J]]|$1|K|3|L|5|6|7|18|8|@]|9|@]|C|$]]|$1|M|3|N|5|6|7|19|8|@$A|1A|B|1B|O|P]]|9|@]|C|$]]|$1|Q|3|R|5|6|7|1C|8|@]|9|@$A|1D|B|1E|1|1F]]|C|$]]|$1|S|3|-4|5|6|7|1G|8|@]|9|@]|C|$]]]|T|$U|$5|V|W|X|C|$Y|Z]]|10|$5|V|W|X|C|$Y|11]]]]

AdoptOpenJDK has been deprecated, and transitioned to Eclipse Temurin from Adoptium. See this blog post:
<a href="https://blog.adoptopenjdk.net/2021/03/transition-to-eclipse-an-update/" rel="noreferrer">https://blog.adoptopenjdk.net/2021/03/transition-to-eclipse-an-update/</a>
To install Temurin Java 8, aka 1.8, with Homebrew, you can use:
<pre><code>brew tap homebrew/cask-versions
brew install --cask temurin8
</code></pre>
If you already had AdoptOpenJDK installed using the commands in the other answers, you should uninstall it first, with:
<code>brew uninstall --cask adoptopenjdk8</code>
You can also download a .pkg for manual installation (the former link at AdoptOpenJDK now leads here):
<a href="https://adoptium.net/?variant=openjdk8" rel="noreferrer">https://adoptium.net/?variant=openjdk8</a>

blocks|key|897193|text|虽然木桶消除了对JAVA8的支持，但我们仍然可以使用brew安装JAVA8。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|897194|它需要手动下载JAVA8.dmg并添加java8.rb，这可以由cask使用。|897195|机器：MAC|offset|length|style|BOLD|897196|OS：Mojave+(10.14.6)|897197|JAVA版本：Java8u231|897198|Step-1|897199|从Oracle站点下载dmg文件。您需要oracle帐户来下载相同的|897200|Step-2|897201|从下载dmg文件的文件夹中启动HTTP服务器。对我来说，它是~/Downlaods，我使用python启动HTTP服务器：|CODE|897202|python+-m+SimpleHTTPServer+8000|897203|Step-3|897204|在/usr/local/Homebrew/Library/Taps/homebrew/homebrew-cask/Casks中创建文件java.rb+(其中存在java.rb)并添加以下内容：|897205|cask+'java8'+do
++version+'8u231,b15:9eef341qase34d44fbaa21'
++sha256+'f808d11b34fa9ee7b6326b5b6dd18544496e02c84b839d94e062bd4493df5d45'

++url+"http://localhost:8000/jdk-#{version.before_comma}-macosx-x64.dmg",
++++++cookies:+{
+++++++++++++++++'oraclelicense'+=>+'accept-securebackup-cookie',
+++++++++++++++}
++name+'Oracle+Java+8+Standard+Edition+Development+Kit'
++homepage+'https://www.oracle.com/technetwork/java/javase/overview/index.html'

++depends_on+macos:+'>=+:yosemite'

++pkg+'JDK+8+Update+231.pkg'

++uninstall+pkgutil:+"com.oracle.jdk#{version.before_comma}",
++++++++++++delete:++[
+++++++++++++++++++++++'/Library/Internet\+Plug-Ins/JavaAppletPlugin.plugin',
+++++++++++++++++++++++'/Library/PreferencePanes/JavaControlPanel.prefPane',
+++++++++++++++++++++]

++zap+trash:+[
+++++++++++++++'~/Library/Application+Support/Oracle/Java',
+++++++++++++++'~/Library/Application+Support/com.oracle.java.JavaAppletPlugin.plist',
+++++++++++++++'~/Library/Application+Support/com.oracle.javadeployment.plist',
+++++++++++++]

++caveats+do
++++license+'https://www.oracle.com/technetwork/java/javase/terms/license/javase-license.html'
++end
end|code-block|syntax|javascript|897206|Step-4|897207|现在，使用brew安装：|897208|brew+cask+install+java8|897209|注意事项：我从上面提到的java下载链接获得了SHA-256校验和。您将不得不更改版本号，sha256和pkg部分，以使用您下载的特定版本，如果它不像我的8u231。|897210|entityMap|0|LINK|mutability|MUTABLE|url|https://www.oracle.com/technetwork/java/javase/downloads/jdk8-downloads-2133151.html^0|0|0|0|2|0|0|2|0|0|6|0|0|6|0|1|8|0|0|0|6|0|U|B|0|0|V|0|0|6|0|1|1P|0|0|0|6|0|0|0|N|0|0|4|0^^$0|@$1|2|3|4|5|6|7|1N|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|1O|8|@]|9|@]|A|$]]|$1|D|3|E|5|6|7|1P|8|@$F|1Q|G|1R|H|I]]|9|@]|A|$]]|$1|J|3|K|5|6|7|1S|8|@$F|1T|G|1U|H|I]]|9|@]|A|$]]|$1|L|3|M|5|6|7|1V|8|@$F|1W|G|1X|H|I]]|9|@]|A|$]]|$1|N|3|O|5|6|7|1Y|8|@$F|1Z|G|20|H|I]]|9|@]|A|$]]|$1|P|3|Q|5|6|7|21|8|@]|9|@$F|22|G|23|1|24]]|A|$]]|$1|R|3|S|5|6|7|25|8|@$F|26|G|27|H|I]]|9|@]|A|$]]|$1|T|3|U|5|6|7|28|8|@$F|29|G|2A|H|V]]|9|@]|A|$]]|$1|W|3|X|5|6|7|2B|8|@$F|2C|G|2D|H|V]]|9|@]|A|$]]|$1|Y|3|Z|5|6|7|2E|8|@$F|2F|G|2G|H|I]]|9|@]|A|$]]|$1|10|3|11|5|6|7|2H|8|@$F|2I|G|2J|H|V]]|9|@]|A|$]]|$1|12|3|13|5|14|7|2K|8|@]|9|@]|A|$15|16]]|$1|17|3|18|5|6|7|2L|8|@$F|2M|G|2N|H|I]]|9|@]|A|$]]|$1|19|3|1A|5|6|7|2O|8|@]|9|@]|A|$]]|$1|1B|3|1C|5|6|7|2P|8|@$F|2Q|G|2R|H|V]]|9|@]|A|$]]|$1|1D|3|1E|5|6|7|2S|8|@$F|2T|G|2U|H|I]]|9|@]|A|$]]|$1|1F|3|-4|5|6|7|2V|8|@]|9|@]|A|$]]]|1G|$1H|$5|1I|1J|1K|A|$1L|1M]]]]

Although cask remove the support for JAVA8, we can still install JAVA8 using brew.
It requires the manual download of JAVA8.dmg and add the java8.rb which could be used by cask.
Machine: MAC
OS: Mojave (10.14.6)
JAVA version: java 8u231
Step-1
Download dmg file from <a href="https://www.oracle.com/technetwork/java/javase/downloads/jdk8-downloads-2133151.html" rel="nofollow noreferrer">Oracle Site</a>. You require oracle account to download the same
Step-2
Start the HTTP server from the folder where you downloaded the dmg file. For me it's <code>~/Downlaods</code> and I use python to start HTTP server:
<code>python -m SimpleHTTPServer 8000</code>
Step-3
Create file <code>java8.rb</code> in <code>/usr/local/Homebrew/Library/Taps/homebrew/homebrew-cask/Casks</code> (where java.rb exist) and add the following:
<pre><code>cask 'java8' do
 version '8u231,b15:9eef341qase34d44fbaa21'
 sha256 'f808d11b34fa9ee7b6326b5b6dd18544496e02c84b839d94e062bd4493df5d45'

 url &quot;http://localhost:8000/jdk-#{version.before_comma}-macosx-x64.dmg&quot;,
 cookies: {
 'oraclelicense' =&gt; 'accept-securebackup-cookie',
 }
 name 'Oracle Java 8 Standard Edition Development Kit'
 homepage 'https://www.oracle.com/technetwork/java/javase/overview/index.html'

 depends_on macos: '&gt;= :yosemite'

 pkg 'JDK 8 Update 231.pkg'

 uninstall pkgutil: &quot;com.oracle.jdk#{version.before_comma}&quot;,
 delete: [
 '/Library/Internet\ Plug-Ins/JavaAppletPlugin.plugin',
 '/Library/PreferencePanes/JavaControlPanel.prefPane',
 ]

 zap trash: [
 '~/Library/Application Support/Oracle/Java',
 '~/Library/Application Support/com.oracle.java.JavaAppletPlugin.plist',
 '~/Library/Application Support/com.oracle.javadeployment.plist',
 ]

 caveats do
 license 'https://www.oracle.com/technetwork/java/javase/terms/license/javase-license.html'
 end
end


</code></pre>
Step-4
Now, install using brew:
<code>brew cask install java8</code>
Note: I got the SHA-256 checksum from the above mentioned java download link. You will have to change the version number, sha256 and
pkg sections to use the specific version you downloaded if it is not 8u231 like mine.

blocks|key|1527929|text|为国产2.7.0。brew桶命令被禁用。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1527930|命令现在更改为|1527931|brew安装--木桶|offset|length|style|BOLD|1527932|entityMap^0|0|0|0|A|0^^$0|@$1|2|3|4|5|6|7|L|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|M|8|@]|9|@]|A|$]]|$1|D|3|E|5|6|7|N|8|@$F|O|G|P|H|I]]|9|@]|A|$]]|$1|J|3|-4|5|6|7|Q|8|@]|9|@]|A|$]]]|K|$]]

For Homebrew 2.7.0. the brew cask commands are disabled
The command is now changed to
brew install --cask adoptopenjdk/openjdk/adoptopenjdk8

blocks|key|1527943|text|对于新版本，使用brew+install+--cask+adoptopenjdk/openjdk/adoptopenjdk8|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|1527944|entityMap^0|8|1I|0^^$0|@$1|2|3|4|5|6|7|H|8|@$9|I|A|J|B|C]]|D|@]|E|$]]|$1|F|3|-4|5|6|7|K|8|@]|D|@]|E|$]]]|G|$]]

for new version use
<code>brew install --cask adoptopenjdk/openjdk/adoptopenjdk8</code>

blocks|key|897117|text|命令是|type|unstyled|depth|inlineStyleRanges|entityRanges|data|897118|+brew+cask+install+adoptopenjdk8-openj9|code-block|syntax|javascript|897119|修复了我的问题，我可以用java8运行我的项目|897120|java+-version|897121|openjdk版本"1.8.0_222|897122|OpenJDK运行时环境(Build1.8.0_222-b10)|897123|Eclipse+OpenJ9+VM+(Buildopenj9-0.15.1，JRE1.8.0MacOSX+AOT+64-64位压缩引用20190717_298+(启用JIT，启用AOT))|897124|OpenJ9+-+0f66c6431|897125|OMR+-+ec782f26|897126|基于jdk8u222-b10的JCL+-+f147086df1+)|897127|entityMap^0|0|0|0|0|0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|Y|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|Z|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|10|8|@]|9|@]|A|$]]|$1|I|3|J|5|6|7|11|8|@]|9|@]|A|$]]|$1|K|3|L|5|6|7|12|8|@]|9|@]|A|$]]|$1|M|3|N|5|6|7|13|8|@]|9|@]|A|$]]|$1|O|3|P|5|6|7|14|8|@]|9|@]|A|$]]|$1|Q|3|R|5|6|7|15|8|@]|9|@]|A|$]]|$1|S|3|T|5|6|7|16|8|@]|9|@]|A|$]]|$1|U|3|V|5|6|7|17|8|@]|9|@]|A|$]]|$1|W|3|-4|5|6|7|18|8|@]|9|@]|A|$]]]|X|$]]

The command is 

<pre><code> brew cask install adoptopenjdk8-openj9
</code></pre>

Fixed my problem and I can run my project in java8

java -version 

openjdk version "1.8.0_222

OpenJDK Runtime Environment (build 1.8.0_222-b10)

Eclipse OpenJ9 VM (build openj9-0.15.1, JRE 1.8.0 Mac OS X amd64-64-Bit Compressed References 20190717_298 (JIT enabled, AOT enabled)

OpenJ9 - 0f66c6431

OMR - ec782f26

JCL - f147086df1 based on jdk8u222-b10)

blocks|key|1527946|text|对于某些较新版本的操作系统，我们可以使用以下命令：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1527947|brew+install+--cask+homebrew/cask-versions/adoptopenjdk8|code-block|syntax|javascript|1527948|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

For some of the newer version of operating system, We can use following command:
<pre><code>brew install --cask homebrew/cask-versions/adoptopenjdk8
</code></pre>

blocks|key|78803|text|brew+install+homebrew/cask-versions/adoptopenjdk8+--cask|type|code-block|depth|inlineStyleRanges|entityRanges|data|syntax|javascript|78804|==>警告说，Temurin是这个软件的官方继承者：|unstyled|78805|brew+install+--cask+temurin8|78806|adoptopenjdk8已正式停止上游业务。在macOS的最新版本中，它可能会停止正常工作(或完全停止工作)。|78807|entityMap^0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@]|9|@]|A|$B|C]]|$1|D|3|E|5|F|7|N|8|@]|9|@]|A|$]]|$1|G|3|H|5|6|7|O|8|@]|9|@]|A|$B|C]]|$1|I|3|J|5|F|7|P|8|@]|9|@]|A|$]]|$1|K|3|-4|5|F|7|Q|8|@]|9|@]|A|$]]]|L|$]]

<pre><code>brew install homebrew/cask-versions/adoptopenjdk8 --cask
</code></pre>
==&gt; Caveats
Temurin is the official successor to this software:
<pre><code>brew install --cask temurin8
</code></pre>
adoptopenjdk8 has been officially discontinued upstream.
It may stop working correctly (or at all) in recent versions of macOS.

blocks|key|78715|text|让用户安装Oracle+8而不是java8|type|unstyled|depth|inlineStyleRanges|entityRanges|data|78716|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|D|8|@]|9|@]|A|$]]|$1|B|3|-4|5|6|7|E|8|@]|9|@]|A|$]]]|C|$]]

Ask the user to install Oracle JDK 8 instead of java8

Installing <code>java8</code> with Homebrew seems to no longer be working. After running:

<pre><code>brew install caskroom/cask/java8
</code></pre>

I get the following error:

<pre><code>Error: Cask 'java8' is unavailable: '/usr/local/Homebrew/Library/Taps/caskroom/homebrew-cask/Casks/java8.rb' does not exist.
</code></pre>

Simply doing:

<pre><code>brew cask install java8
</code></pre>

Errors out with:

<pre><code>Error: Cask 'java8' is unavailable: No Cask with this name exists.
</code></pre>

This seems like a recent development because I remember installing it this way a few months ago. Any suggestions on how to properly install <code>java8</code> on MacOS nowadays?

Unable to install java8 with homebrew

翻译质量差，导致语言生硬或混乱。

没有提供实际的解决方法或示例。

解答不清晰，无法理解或解决问题。

页面排版不美观，阅读体验差。

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功能1上新10个字符

功能2描述100个字符功能2描述100个字符功能2描述100个字符功能2描述100个字符功能2描述100个字符功能2描述100个字符功能2描述100个字符功能2描述100个字符功能2描述100个字符。

功能2上新100个字符功能2上新100个字符功能2上新100个字符功能2上新100个字符功能2上新100个字符功能2上新100个字符功能2上新100个字符功能2上新100个字符功能2上新100个字符。

功能5描述100个字符功能5描述100个字符功能5描述100个字符功能5描述100个字符功能5描述100个字符功能5描述100个字符

功能5上新100个字符功能5上新100个字符功能5上新100个字符功能5上新100个字符功能5上新100个字符功能5上新100个字符功能5上新100个字符功能5上新100个字符功能5上新100个字符功能5上新100个字符

功能4上新

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用Homebrew安装java8似乎不再有效。跑完后：brew install caskroom/cask/java8我得到以下错误：Error: Cask 'java8' is unavailable: '/usr/local/Homebrew/Library/Taps/caskroom/homebrew-cask/Casks/java8.rb' does not exist.简单地做：brew

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