為什麼 Debian 無法找到軟體包 openjdk-16-jre-headless？

我正在使用 Debian 10.6。

$ sudo apt install openjdk-16-jre-headless
Reading package lists... Done
Building dependency tree       
Reading state information... Done
E: Unable to locate package openjdk-16-jre-headless

這是我的包裹清單。注意只有 openjdk 11，沒有別的。

$ apt search openjdk
Sorting... Done
Full Text Search... Done
default-jdk/oldstable 2:1.11-71 i386
 Standard Java or Java compatible Development Kit

default-jdk-doc/oldstable 2:1.11-71 amd64
 Standard Java or Java compatible Development Kit (documentation)

default-jdk-headless/oldstable,now 2:1.11-71 amd64 [installed,automatic]
 Standard Java or Java compatible Development Kit (headless)

default-jre/oldstable,now 2:1.11-71 amd64 [installed,automatic]
 Standard Java or Java compatible Runtime

default-jre-headless/oldstable,now 2:1.11-71 amd64 [installed,automatic]
 Standard Java or Java compatible Runtime (headless)

java-package/oldstable,oldstable 0.62 all
 Utility for creating Java Debian packages

jtreg/oldstable,oldstable 4.2-b14-1 all
 Regression Test Harness for the OpenJDK platform

libhsdis0-fcml/oldstable 1.1.3-3 amd64
 HotSpot disassembler plugin using FCML

libreoffice/oldstable 1:6.1.5-3+deb10u7 amd64 [upgradable from: 1:6.1.5-3+deb10u6]
 office productivity suite (metapackage)

nvidia-openjdk-8-jre/oldstable 9.+8u77~9.2.148-7+deb10u1 amd64
 NVIDIA provided OpenJDK Java runtime, using Hotspot JIT

openjdk-11-dbg/oldstable 11.0.13+8-1~deb10u1 amd64

apt找不到openjdk-16-jre-headless，因為OpenJDK 16 軟體包在任何 Debian 版本中都不可用。

Debian 10 中唯一可用的版本是OpenJDK 11。Debian 11 有OpenJDK 17。這兩個都是具有長期支持的版本。

openjdk-16-jre-headless未在 Debian 上打包。您必須使用openjdk-11-jre-headless，啟用安全儲存庫後可以安裝它。

Java和debian。

引用自：https://unix.stackexchange.com/questions/684482