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I need to install open JDK in my Windows 64-bit os. I have used ORACLE open JDK and downloaded from the below link: https://jdk.java.net/8/
While downloading I have selected Accept License Agreement and installed.
But, after the installation when I tried checking the version using command java -version it's showing like regular JDK.
Can anyone help me to get where I went wrong? Or is there any better vendor to install open JDK in windows. Thanks.
Amazon offers an open jdk for Windows (and other OS), but just for Java 8, 11 and 16.
You can download it from here: https://aws.amazon.com/es/corretto/
After installing it and running the java -version command, you will see something like this:
>java -version
openjdk version "1.8.0_242"
OpenJDK Runtime Environment Corretto-8.242.08.1 (build 1.8.0_242-b08)
OpenJDK 64-Bit Server VM Corretto-8.242.08.1 (build 25.242-b08, mixed mode)
You need to set your java version in environment of you machine and target your JDK8 bin folder, or any JDK that you want to have at your disposal when you run java -version.
The best way to do this is to use the builds from adoptopenjdk. They're very high quality and come in multiple variants for Windows ranging from zip files to MSI installers. Dead simple to install JDK 8, 11 or 15.
But, after the installation when I tried checking the version using command java -version it's showing like regular JDK.
This is because JAVA_HOME is pointing to your old JDK. You need to go to Control Panel and change the Environment Variables. Just do a search on Windows 10 for "Environment Variables" to easily find that configuration panel.
Azul Systems provides builds of OpenJDK and relative installers, for all OSes and JDK versions.
It also provides builds of the JDK with OpenJFX included.
The installers bind JAR files to be executed by Java on Windows.
Download from azul.com website
I know this is old but should anyone run across this in search of OpenJDK 8 go here
https://developers.redhat.com/products/openjdk/download
i was trying to install openfire in my windows 64 bit OS, but server was not starting , and giving below error message.
which says JAVA_HOME doesn't point to 32 bit JRE,
where as in openfire site, nothing was said about 32 or 64 bit jdk version.
upon clicking ok i am getting serious of error messages,
do i need to point openfire to 32 bit jdk and jre to make it workable?
It is possible to start openfire from command line:
java -jar startup.jar
Assuming it is executed from ./lib of openfire installation dir, and you have binaries of your preferred java in system path.
The error means exactly what it said. You have either installed the wrong architecture flavor of Java / the JDK or haven't installed Java at all. If you haven't installed the 32-bit JDK yet, grab it at http://www.oracle.com/technetwork/java/javase/downloads/jdk8-downloads-2133151.html and install it. If you already have the 32 Bit JDK, change the environment variables of your system to let JAVA_HOME point to the correct installation. Refer to https://docs.oracle.com/cd/E19182-01/820-7851/inst_cli_jdk_javahome_t/ for further instructions. If that doesn't help, deinstall every JDK inst install the 32-bit JDK from scratch.
i have downloaded zip version of openfire , which is having this issue, i have downloaded .exe version with jre bundled, which is working fine.
I installed java 64bit 1.7 and exe4j 64bit version. I tried to generate an exe from exe4j, but while running the program I'm having this error.
This is how I set up path variable. And this is right jre path. What did I miss here? please let me know.
Thank you.
This has to be done during your exe4j configuration.
In the fourth step of Exe4j wizard which is Executable Info select> Advanced options select 32-bit or 64-bit. This worked well for me.
or else install both JDK tool-kits x64 and x32 in your machine.
Try installing the 32 bit version of Java 6. This works for version Install4J 4.0.5. Should fire right up, or allow you to re-run the installer.
Any newer version or the 64-bit version of 6 will fail, complaining that the java.exe is damaged.
There are few steps to overcome this problem:
Uninstall Java related softwares
Uninstall NodeJS if installed
Download java 8 update161
Install it
The problem solved: The problem raised to me at the uninstallation on openfire server.
In my case (OWASP Zap scanner) I had to install the latest OpenJDK from https://adoptium.net
BH's answer of installing Java 6u45 was very close... still got the popup on reboot...BUT after uninstalling Java 6u45, rebooted, no warning! Thank you BH!
Then installed the latest version, 8u151-i586, rebooted no warning.
I added lines in PATH as above, didn't do anything.
My system: Windows 7, 64 bit. Warning was for No JVM, 32 bit Java not found.
Yes, I could have installed the 64 bit version, but 32bit is more compatible with all programs.
It might be issue with the Java JDK/JRE package itself, try downloading & installing/configuring latest version of JDK, followed by system restart. It worked for me and it may work for you too.
I had a similar problem. With the difference that I wanted to use the 32-bit version. The only way I could solve the problem was to install the 32-bit version of Windows XP on a virtual machine!!
Leave you stuff there and Try the following as well:
Start > Right-click on My computer > Properties > Advanced system settings > Environment Variables > look for variable name called "Path" in the lower box
set path value value as: (you can just add it to the starting of line, don't forgot semi column in between )
c:\Program Files\java\jre7\bin
It worked for me, but the exe4j can leave a signature when you double click the .exe application
I'm using eclipse on what I thought were all 64 bit runtime environments. The current settings Java>installed JREs and Execution Environment all point to jdk1.6.0_30 which is a 64 bit version of the JDK. However, eclipse still thinks it's running a 32 bit version because when I run:
System.getProperty("sun.arch.data.model");
it returns 32 instead of 64.
And the external JNI resource that I compiled for 64 bit machines will not link to the shared .so file unless it's running in a 64 bit enviroment. (I'm getting word size mismatch errors when I try to do this)
So How can I reconfigure eclipse to run 64 bit jvm. Does eclipse itself have to be a 64 bit version?
:on linux
Edit: I have tried everyone's suggestions and nothing is working. I've changed the execution, and enviroment variables to point to the newst JDK I have which is 1.6_30. when I run the program from a command line I get 64 and amd64 as the value when I run the same program in eclise I get 32 and i386. Something is wrong in eclipse that is causing it to try and run it on a 32 bit JVM. when I try java -d32 -version it says that a 32 bit enviroment isn't installed but Eclipse doesn't know that. I've modified the Eclipse.ini file and still nothing is working. I've restarted eclipse after these changes...nothing. Can some one who knows eclipse well people help me out here. thanks
Add the -vm tag to eclipse.ini or the shortcut to explicitly specify a JRE. Note that the default for Windows XP is to use the CRAPPY JRE that comes with Windows.
-vm "%JAVA_HOME%/bin/javaw.exe"
In eclipse.ini add:
-Xmx8g
-d64
For me its working properly! . Make sure your path is c:\Program File not c:\Program File(X86) ( if you installed 64 bit JDK it should store in c:\ Program Files)
Eclipse configuration is explained here
The "installed JREs" (better use JDKs) are used for building and running your code and can be of different architecture or Java version. The JVM used for running Eclipse is defined in the eclipse.ini file. You should use the version for the architecture of the JVM.
Okay. This has been rather headache inducing, but I believe I have a solution. After changing the eclipse.ini, Go to your project properties. Under the Run/Debug settings, edit the launch configuration for your project. Under the JRE tag, click installed JREs. When that dialog comes up, click search. Go to your program files folder, NOT the x86 one, and let it search for your JREs. When the latest comes up, deselect the JRE that was currently selected and select the most recent JRE that it found. I renamed mine JRE7-64 just so I could identify a difference. This solved the issue on my end. Good luck
I think there is a bug in the Run Configuration page.
I had to add the 64-bit JRE in run configuration, select it, and DELETE the 32-bit entry (even though it was already deselected).
eclipse.ini didn't work for me.
This is Eclipse Luna.
I'm trying to install the Android SDK on my Windows 7 x64 System.
jdk-6u23-windows-x64.exe is installed, but the Android SDK setup refuses to proceed because it doesn't find the JDK installation.
Is this a known issue? And is there a solution?
Press Back when you get the notification and then Next. This time it will find the JDK.
Actual SETUP:
OS: Windows 8.1
JDK file: jdk-8u11-windows-x64.exe
ADT file: installer_r23.0.2-windows.exe
Install the x64 JDK, and try the back-next option first, and then try setting JAVA_HOME like the error message says, but if that doesn't work for you either, then try this:
Do as it says, set JAVA_HOME in your environment variables, but in the path use forward slashes instead of backslashes.
Seriously.
For me it failed when JAVA_HOME was C:\Program Files\Java\jdk1.6.0_31 but worked fine when it was C:/Program Files/Java/jdk1.6.0_31 - drove me nuts!
If this is not enough, also add to the beginning of the Environment Variable Path %JAVA_HOME%;
Updated values in System Environment Variables:
JAVA_HOME=C:/Program Files/Java/jdk1.8.0_11
JRE_HOME=C:/Program Files/Java/jre8
Path=%JAVA_HOME%;C:...
I found the solution and it's beautifully stupid. I found Android SDK cannot detect JDK.
Press the Back button on the SDK error screen that tells you that the EXE couldn't detect the JDK. Then press Next.
Who would have thought that would happen?
It seems like it doesn't work without 32 bit JDK.
Just install it and be happy...
I downloaded the .zip archive instead and ran SDK Manager.exe, and it worked like a charm. You had the same issue with the .exe otherwise.
Warning: As a commenter mentioned, don't try this on a Windows 7! I tested it with Windows XP 64 bit.
As the posted solution does NOT work for all (including me, myself, and I), I want to leave a note for those seeking for another way (without registry hacking, etc.) to solve this on a Windows 64 bit system. Just add PATH (capital letters!!) to your environment Variables and set the value to your JDK-Path.
I added JDK to the existing "Path" which did not work, like it didn't with JAVA_HOME or the "Back"-Solution. Adding it to "PATH" finally did the trick.
I hope this might be helpful for somebody.
All you need are the following two registry entries. It appears as if whoever posted the other registry stuff basically just copied all the keys from HKEY_LOCAL_MACHINE\SOFTWARE\JavaSoft into HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\JavaSoft,
which obviously isn't an ideal solution because most of the keys aren't needed.
[HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\JavaSoft\Java Development Kit]
"CurrentVersion"="1.6"
[HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\JavaSoft\Java Development Kit\1.6]
"JavaHome"="C:\\Program Files\\Java\\jdk1.6.0_23"
Non of these solutions worked for me. I fixed it by temporarily changing the filename of C:\Windows\System32\java.exe to java_.exe
None of the solutions here worked for the 64-bit version.
Putting the JDK path before the c:\windows\system32\ path in your environment variables solves the problem. Otherwise the 32-bit java.exe is found before the 64-bit JDK version.
After reading a couple of blog posts, it does seem to be even an easier fix by clicking BACK when the installer says couldn't find the JDK, and then simply click NEXT again and magically it finds the JDK. No registry messing around or re-downloading etc..
Adding JAVA_HOME environment variable (under System Variables) did the trick for me.
Clicking "Back" and "Next" buttons didn't work.
Windows 7 Professional x64, JDK 1.7.0_04 (64 bit, I don't have x86 version installed)
I think that installer tries to find JDK in specific (1.6?) version and if it can't find it, checks JAVA_HOME which was not set in my case. I have another computer (the same system but with JDK 1.6 x64) and it worked without JAVA_HOME variable.
You don't have to install 32 bit version of JDK :)
I copied the Java.exe from
C:\Windows\System32
to
C:\Windows\SysWOW64
and it worked.
I'm using 64 bit Windows 8.
Setting the JAVA_HOME environment variable to
C:\Program Files\Java\jdk1.7.0_07
instead of
C:\Program Files\Java\jdk1.7.0_07\bin
fixed it for me.
The guy above who put this: "I experienced this problem too, but none of the answers helped. What I did, I removed the last backslash from the JAVA_HOME variable and it started working. Also, remember not to include the bin folder in the path." This was in fact the correct answer.
For this SDK to install this is what I did. I am running the latest Microsoft OS Windows 8.
User Variables:
Path C:\Program Files\Java\jdk1.7.0_07\bin
Environment Variables
Create these two:
CLASSPATH %HOME_JAVA%\jre\lib
HOME_JAVA C:\Program Files\Java\jdk1.7.0_09
This one already exists so just edit:
Path At this end of WindowsPowerShell\v1.0\ simply add ";C:\Program
Files\Java\jdk1.7.0_09"
This is what I did and it worked for me. =)
This registry fix worked like a charm on my Windows 7 x64 setup: http://codearetoy.wordpress.com/2010/12/23/jdk-not-found-on-installing-android-sdk/
Press Report error and OK. Next will be enabled.
Try downloading and installing the zipped version rather than the .exe installer.
Also, RUN AS ADMINISTRATOR! Worked for me with backslash fix.
I had the same problem, tried all the solutions but nothing worked. The problem is with Windows 7 installed is 64 bit and all the software that you are installing should be 32 bit. Android SDK itself is 32 bit and it identifies only 32 bit JDK. So install following software.
JDK (32 bit)
Android SDK (while installing SDK, make sure install it in directory other than "C:\Program Files (x86)", more probably in other drive or in the directory where Eclipse is extracted)
Eclipse (32 bit) and finally ADT.
I tried it and all works fine.
I had the same problem and solved it by installing the x86 version of the JDK (on Windows XP x64).
I experienced this problem too, but none of the answers helped. What I did, I removed the last backslash from the JAVA_HOME variable and it started working. Also, remember not to include the bin folder in the path.
Android SDK is 32 bit app, and it requires the 32 bit of JDK to work... the 64 bit JDK won't make any use for it...
1-Simply done the "JAVA_HOME" environment variable thing.
2-Right-Click on Android SDK and from compatibletiy Tab Select windows 7 and administrator.
3-Run it again.
WORKING SOLUTION AND NO REGISTRY MODIFY NEEDED
Simply put your java bin path in front of your PATH environment.
PATH before
C:\Windows\system32;C:\Windows\%^^&^&^............(old path setting)
PATH after
C:\Program Files\Java\jdk1.6.0_18\bin;C:\Windows\system32;C:\Windows\%^^&^&^............(old path setting)
And now the Android SDK installer is working.
BTW, I'm running Win7 x64.
For installer_r21.1-windows.exe on Windows 8 x 64 what worked for me was setting up my user environment variable JAVA_HOME to C:\Program Files\Java\jdk1.7.0_10.
Hope this helps you all! :)
Yeah install the 32 bit version of the Java SE SDK (or any of the combinations). That should help solve your problem.
I'm running a 64-bit version of Windows 7 and I was getting this issue when attempting to install Android Studio 1.0 using the executable from:
http://developer.android.com/tools/studio/index.html
I tried all the listed solutions and several different versions of JDK 1.7 and 1.8 -- no dice. I went with installing the zipped version of the application and it worked like a charm:
http://tools.android.com/download/studio/canary/latest
Still baffled by this problem; especially since beta versions of Android Studio worked just fine.
The above methods did not work for me in Windows 8 Pro.
Just set the path to
C:\Program Files\Java\jdk1.7.0_07\
Where C is your drive in which you have installed the JDK.
Don't forget the backward slash at the end.
You will have to download the 32-bit SDK version because Win7 64-bit is not supported only Windows Server 2003 has a supported 64-bit version. During the download of Java SDK pick "Windows" as your platform and not "Windowsx64".
Once I did this android SDK installed like a charm. Hope this helps.
I tried several posted solutions and then it took a system reboot before it started working, which may have been because I had just installed the JDK. Here are all the things I had going on - not sure which ones were essential:
64-bit JDK installed.
JAVA_HOME defined using forward slashes (/) instead of backslashes
().
JDK 'bin' directory listed at beginning of PATH.
System reboot.