This article has been rearranged based on Where can I get OpenJDK binaries and archives?. Here is a summary of where you can get OpenJDK.
Oracle (java.net)
Oracle JDK is here
JDK 10
GA is scheduled to be released on March 20, 2018, so it has not been released yet. Only Early Access for testing is available.
JDK 9
https://download.java.net/java/GA/jdk9/<version>/binaries/openjdk-<version>_(linux|osx|windows)-x64_bin.tar.gz
Red Hat
Red Hat distributes an OpenJDK that contains an implementation of icedtea. However, to distribute the binary, you need to create an account only for the Windows version and approve the terms and conditions with the developer license. Please check the following site for details.
Azul Systems
We distribute OpenJDK-based Zulu for free on Windows, MacOS, and Linux.
https://www.azul.com/downloads/zulu/
Adopt OpenJDK (Java User Groups)
We are distributing a pre-built version before GA is released. Positioned for testing, not for the real environment.
https://adoptopenjdk.net/
Red Hat Enterprise Linux / CentOS / Fedora
RHEL / CentOS cannot download non-LTS (Java 9, Java 10) at this time. Fedora is also although Java 9 was a tech preview as of Fedora 26 Not available by default.
yum install java-1.8.0-openjdk-devel
debuginfo-install java-1.8.0-openjdk
dnf install java-1.8.0-openjdk-devel
dnf debuginfo-install java-1.8.0-openjdk java-1.8.0-openjdk-headless
Ubuntu
According to the OpenJDK SRU exception of the Ubuntu community, it seems that it will follow the GA release of OpenJDK, and Java 9 is normal. Available.
apt intall openjdk-9-jdk
Refer to http://hg.openjdk.java.net/jdk/jdk/file/tip/doc/building.md etc. for the build method. Please note that it is quite difficult to build on Windows at the time of writing the article.
Strictly speaking, it is not positioned as "latest", but if you want to touch the latest JDK functions, this procedure is fine.
hg clone http://hg.openjdk.java.net/jdk/jdk/
cd jdk
bash configure --disable-warnings-as-errors --with-jdk-boot=/path/to/jdk9or10
make images
./build/*/images/jdk/bin/java -version
openjdk version "11-internal" 2018-03-20
OpenJDK Runtime Environment (build 11-internal+0-adhoc.ykubota.jdk)
OpenJDK 64-Bit Server VM (build 11-internal+0-adhoc.ykubota.jdk, mixed mode)
JDK 10
hg clone http://hg.openjdk.java.net/jdk/jdk10/
cd jdk10
bash configure --disable-warnings-as-errors --with-jdk-boot=/path/to/jdk9or10
make images
./build/*/images/jdk/bin/java -version
JDK 9
hg clone http://hg.openjdk.java.net/jdk-updates/jdk9u/
cd jdk9u
bash configure --disable-warnings-as-errors
make images
./build/*/images/jdk/bin/java -version
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