Develop Reference

jdk won't install on Intel Atom

I'm trying to install Oracle jdk 17 on my netbook but with no success.
The installer says that the processor (Intel Atom Z3735F) is not supported.
On my desktop Intel i5 the same package is working fine.
I need Java on the netbook to bring at school.
Edit:
The netbook is running on Win 10 Home 32bit on Atom 64 bit processor.

I did a fast research I found out that the CPU (processor) you're rocking on your netbook is quite outdated today - it's from 2014 (check Intel Atom Z3735F on the official website). But it surprisingly should not be the issue (well, it might be - some instructions might be outdated, but I don't think that's the problem), because it actually is 64-bit CPU (it support 64-bit instruction set and it can address more memory - thanks to the wider address bus, OS has to support this as well). Since the new Java JDK 17 LTS is for x64 (64-bit) systems only, and you said that the installer reports that it's not supported on your device. I think that you're not using 64-bit operating system (OS). Do you think this could be the issue? You could easily find out by just easily looking at the task manager to see how much GB (gigabytes) of RAM you got. If it's 4 GB or less, then it's quite obvious thing. To make yourself sure, just type out systeminfo command to the CMD (if you are on Windows) and there under System Type record you will see what type you got (x86-based PC or x64-based PC).
Edit: If you are looking for the latest JDK release by Oracle that supports 32-bit systems, then JDK 13 would probably be the best go for you. If you don't need the features introduced in these newer releases, then I would recommend Java JDK 11 LTS, because it's going to be supported until September 2026. And as mentioned by matt in the answer, there is also JDK 17 LTS for x86 systems (32-bit) by Adoptium. Well, or reinstall the 64-bit OS, but that is probably the hardest option.

Thank you all for pointing me to the right direction.
The issue was caused by the 32bit Os
As suggested by #matt , I installed Adoptium JDK17 x86 that solved my problem.

who is the distributor of openjdk docker image

my understanding is you need to have a distributor to use openjdk someone like (oracle openjdk, adoptopenjdk) but on docker repo for openjdk how do I find out who is the distributor if I just use their reference documentation
{the code below in copied from openjdk official docker repo}
FROM openjdk:11
COPY . /usr/src/myapp
WORKDIR /usr/src/myapp
RUN javac Main.java
CMD ["java", "Main"]
moving from java 8 to java 11

It's all written there on the docker page: https://hub.docker.com/_/openjdk/
openjdk:<version>
This is the defacto image. [...] These are the suite
code names for releases of Debian and indicate which release the image
is based on. [...]
openjdk:<version> (from 12 onwards), [...]
Starting with openjdk:12
the default image as well as the -oracle and -oraclelinux7 variants
are based on the official Oracle Linux 7 image which is provided under
the GPLv2 as per the Oracle Linux End User Agreement (EULA). [...]
TL;DR: the images are maintained by the Docker community, versions < 12 ship the OpenJDK build from Debian or Alpine Linux, later versions ship the Oracle builds.
By the way, until Version including 8, the Oracle JDK was more freely available. Anyway, Linux distributions built their own binaries. The binary distributions by AdoptOpenJDK, Amazon Corretto, etc. are only there, because Oracle doesn't provide binary builds freely anymore. But you can download OpenJDK and build it yourself, if you like.
Edit: You could also ssh into the image and run java -version
Edit2: Java 7 and support
I want to address your comment on my answer. You specifically asked for Java version 7. This version is quite old (first release in 2011!) and you will not find any long term support for without paying for commercial support. Period.
This version also predates the license changes to Oracle binaries, so the whole AdoptOpenJDK argument doesn't matter.
On the OpenJDK Docker Hub page, you can see different images shipping Java 7 builds, some with Alpine Linux and some with Debian Jessie. Those are - presumably, I've only verified that for Debian - builds of the open source OpenJDK project by that distribution. So the GPL with classpath exception should be the license that applies (read: you can use it commercially).
Note that even the LTS-support for Debian Jessie ends next month: https://wiki.debian.org/LTS
That shouldn't be necessarily a problem, depending on where you want to run that image (i.e., facing the public internet vs. private intranet).
If you have to stick with such an old version of Java, you have few options (maybe taking a modern linux image and build OpenJDK yourself [that will be painful, I imagine]).
Edit3: Recent version 7 support and v8+ from AdoptOpenJdk
OK, so you clarified in your comment, that you are not actually looking for version 7 builds.
I did, however, find an up-to-date and supported build of Java 7, by Azul: https://hub.docker.com/r/azul/zulu-openjdk
But you said you're running version 8, looking to go to 11. Then I would highly recommend AdoptOpenJDK, which is currently the most popular build. They offer Docker images as well (Note: they offer different JVMs: Hotspot is the default and highly recommended, OpenJ9 is based on a development by IBM)

Can Java 9 run on a 32-bit OS?

Seems there are no 32-bit download packages on
Oracle's available download list.
UPDATE
Can download here:
wget --no-check-certificate --no-cookies --header "Cookie: oraclelicense=accept-securebackup-cookie" http://download.oracle.com/otn-pub/java/jdk/9+181/jdk-9_windows-x86_bin.exe

Although the 32-bit binaries for JDK9 seem to be missing from Oracle's lousy, unencrypted download page, if (after clicking "Accept License Agreement") you copy the URL of the 64-bit binaries and change x64 to x86, it will give you the 32-bit binaries.
Update: And now it's gone. Bizarre! What is Oracle playing at? They went to the effort to fix x86-specific bugs for Java 9, they explicitly said 32-bit Windows and Linux were supported, they list installation instructions for 32-bit systems, they made 32-bit builds fully available throughout the pre-release period for testing purposes, and nothing in their JDK 9 migration guide indicates that 32-bit platforms have been dropped (quite the opposite in fact: it says the -client VM command line option has been dropped so the faster -server VM is now the default for 32-bit).
So why are they suddenly hiding the release binaries?
I happened to have downloaded the Windows JDK (including JRE) and the Linux JRE for x86. I don't have the Linux JDK. There's an Oracle digital signature in the properties of the Windows exe so you can see that it's genuine. I do hope Oracle get their act together.
jdk-9_windows-x86_bin.exe: https://drive.google.com/uc?id=0B4RBD9LUbdlvUHpESXdEMmdudkE&export=download
(SHA256: 62b9bc12ea64e9edb9950b0c784a1561b8503f7384270659ad93d66f1b3b456a)
jre-9_linux-x86_bin.tar.gz: https://drive.google.com/uc?id=0B4RBD9LUbdlvb0dtOHR0eDVoQWc&export=download
(SHA256: 372fbd6d8dc70c8087c0d3547f58d593266cf26cc4f6c6698b808930b3a4018a)
jre-9_windows-x86_bin.exe
(SHA256: bbd0e75dc6360e903dd905f080e1a1d76c9c78a27d9f7dd153c6e3adc6ebc78e)
Update 2: Apparently Oracle has decided to eliminate support for x86 Java forever. They somehow finished, compiled, digitally signed, and published the Java 9 binaries by accident. The binaries still work, but presumably will not receive updates.
Update 3: Apparently Oracle has become so hateful and hostile towards Java developers that they have compelled Google to block the above downloads with a DMCA request. Nothing I can do. Sorry. If you have Java 9, you have it, and it will still work. If you don't have Java 9, well, you'll have to get creative.

Chief Java Architect Mark Reinhold in Twitter on September 25:
Sorry, but we have no plans to ship 32-bit builds of JDK 9. We’re
trying to focus more on the future than the past.
Yes, you can build your own 32-bit JDK 9 binaries.

I found a Win32 build here: https://github.com/ojdkbuild/ojdkbuild
This is a OpenJDK provided by RedHat (without support), no idea if they will provide those builds in future.

Oracle has dropped Windows 32-bit Client VM
However: The statement there "In JDK 9, the Windows 32–bit client VM is not available. Only a server VM is offered." is not even accurate, there is not even 32-bit server VM (as of Sep 27, 2017).
Update: Not just Windows, but no 32-bit for any platform is available.

Try the below link for openJDK, offers X86 (32bit) and X64 (64bit) for most java versions
https://adoptopenjdk.net/releases.html?variant=openjdk16&jvmVariant=hotspot

Dropped Windows 32–bit Client VM: In JDK 9, the Windows 32–bit client VM is not available.
data source

How do I upgrade from JavaVM 32bit to JavaVM64bit

I have a 64bit operating system with phpStorm 9.0.2 installed.
I get out of memory errors and it seems like JVM32bit might not help the cause.
How can I upgrade my JVM32bit version to JVM64bit?
Is it just as simple as downloading a 64bit version and installing it or are there any other extra steps to take to do this correctly?
OS Win 7 64bit

You can run PhpStorm even if you have no Java installed on your computer as on Windows it comes bundled with own 32-bit JRE which will be used by default ignoring your system-wide Java (if you have one).
That's why "uninstall 32-bit Java and just install 64-bit one instead" is not enough (as in some cases you simply have no system-wide Java installed on your computer).
Download and install 64-bit JDK (yes, it has to be JDK and not just JRE)
Create IDEA_JDK_64 environment variable and point it to JDK root folder. For example:
Use 64-bit PhpStorm's executable (PhpStorm64.exe) instead of 32-bit (PhpStorm.exe).
The above works just fine for me.
If anything -- please refer to official support article.

Java pre-installed in Windows and Linux?

I know that Java is pre-installed in Mac OS X but i wonder if it is pre-installed in Windows XP, Vista, 7 and all Linux distros?

Java isn't preinstalled in any Windows version (OEM not included - depends on the manufacturer then).
I think it is not common in Linux distributions at all, but I don't want to make a general statement about ALL distros here ;-)

Fedora Linux comes with IcedTea, an open source Java.

Some Linux versions I experienced comes with old versions of Java JDK (so you must take care developing for these distributions!) or with an alternative version of the compiler: Gnu Compiler Java (GCJ).
About the virtual machine, I've just seen the JVM in Windows and Linux, provided by Sun.

I understand that the vast majority of PCs come with the Sun JRE installed. There was a bit of a law suite between Microsoft and Sun (my employer, now a wholly owned subsidiary of Oracle).
The "6-open" OpenJDK is a backport of the GPLed JDK7. General purpose distros should include it, but of course with Linux you are fighting with package management.