Develop Reference

Tizen Install on Windows 10 will not recognize JDK 9 installed

I am attempting to install the 64-bit version of Tizen SDK on my Win10 Home Laptop. However, every time I get the error that I either don't have java 8+ installed or that the JAVA_HOME environmental variable isn't set right.
Now I've read other questions on this, and I've set the JDK directory as first in the "Path" environmental variable. I've added the JAVA_HOME environ. var and pointed it at my JDK directory. I've rebooted twice throughout this (just in case).
I tried to install the 32-bit version of Tizen SDK, but immediately got the error that I'm not on a 32-bit OS.
I have d/l and installed Java 9 SDK and JRE. They're in
C:\Program Files\Java\jdk-9 &
C:\Program Files\Java\jre-9 respectively.
Here's my Path variable:
Path Variable Image
Any help would be mucho appreciated!

Response on Oct, 2017:
** So far Tizen studio installer can't recognize new version of Java. **
You need to install Oracle Java 8 for now.
Additional Checklist:
[✔] Tizen developers site states "Do not install OpenJDK". Make sure you are using OracleJDK instead of OpenJDK. Related links you might see:
Forum Post
[✔] There's a Tip&Tech document on Tizen Developers
Community called 'Guide for Setting JDK'. As you are having Issues, You may check it out.
Tizen: Guide for Setting JDK
[✔] I expect you are using the Latest Tizen Studio 2.0.
Latest Tizen Studio Download Link
Cause history says, Java compatibility Defers with IDE versions:
Tizen-sdk-for-wearable-setup Installation issue because of JAVA HOME
Edit on March, 2019:
Tizen-Studio now supports OpenJDK 10
To use Tizen Studio install Oracle Java Development Kit (JDK) 8, JDK 9, or OpenJDK 10 .
Prerequisites for the Tizen Studio
OpenJDK 10 and OpenJFX Installation Guideline on Tizen Developers Site

I was stuck there for a while, too. In addition to setting JAVA_HOME to C:\Program Files\Java\jdk-12.0.1 (no bin at the end), I also added C:\Program Files\Java\jdk-12.0.1\bin to the beginning of PATH; then it worked.

I've had the same problem, therefore i installed JDK8 from oracle website and the installer works fine. (no need to reboot) If you don't need specific JDK9 stuff, go with 8 and you will be good to go. Don't forget to update JAVA_HOME and Path to point to JDK8.
I have set as user variables CLASSPATH set to C:\Program Files\Java\jre1.8.0_144\lib, JAVA_HOME set to C:\Program Files\Java\jdk1.8.0_144
As system variables i've added to the existing Path this value C:\Program Files\Java\jdk1.8.0_144\bin and JAVA_HOME the same as above (even though i'm not sure the latter one is required).
PS. I have both JDK8 and 9 installed and Windows 10 64bit. I tried installing Tizen on debian using JDK9 and i got the same error, i'm sure that using JDK8 will work (need to check installation on OSX though)
Cheers!

On my M1 Mac with macOS 12, I was having trouble getting the Tizen package manager to run. It kept giving me:
Java Development Kit (JDK) was not found on your computer. To use the Tizen Studio, you need to install the JDK 8 or later. Please go to http://www.oracle.com/technetwork/java/javase/downloads and download a JDK.
Deleting ~/.package-manager solved the issue.

In my case adding "C:\Program Files\Java\jdk-12.0.2\bin" (with the quotes) to the PATH did the trick, i.e. the installer run successfully

Information on the tizen website is incomplete. On Windows 10 using OpenJDK follow the article and you need to enter another environment and system parameters after adding Java_home.
Parameter is "PATH" value is "%JAVA_HOME%\bin" otherwise Tizen Studio installation wont recognize it.

I download the IDE of version 3.2 and install the open jdk10, IDE can load successfully, but load the emulator failed when click the tools -> emulator manager.
error: could not create the java virtual machine.
my setting:
path: %JAVA_HOME%\bin
JAVA_PATH: c\jdk-10
what's the problem here? please give some suggestions.

The only thing that worked for me in the end was:
Uninstall the recent Java version and install Java SE 8u231.
After that, I tried Tizen 1.3, and it worked.
I don't know if the newer versions works, but the above worked for me for now.

Eclipse jvm.dll error when loading

Trying to open Eclipse after a couple of months and get this error:
So I checked that folder to see if it existed, and it did:
I checked my PATH Was correct and it was also correct:
When this error first occurred I had 3 Java installations. JRE 7 Update 10, JDK 7 Update 7 32bit and 64 bit.
I uninstall ALL and restarted my machine. Eclipse then stated, as expected that I needed a JRE or a JDK. So I downloaded and installed the latest JDK and now I get this error, despite everything appearing to be correct.
Any ideas?

As requested in the comments.
Your eclipse version is searching for the x86 version of the jdk (You probably set this value when eclipse started). You should check if your eclipse is a 64 bit version if not, switch to a 64bits jvm.

the problem lies with compatibility issue of jdd 6 with eclipse.I tried jdk 7 and it worked perfectly.Here is a link for jdk 7 downloading
http://download.cnet.com/Java-Development-Kit-64-Bit/3000-2218_4-75317068.html

The problem is with the Eclipse version. I faced the exact same problem, I was using Eclipse helios. I switched to Eclipse Kepler 64 bit and it is now working perfectly on my system. Even if the eclipse is 64 bit, some versions may not be compatible with other softwares using the same Java path (Eg: Oracle BI Publisher). Make sure to use the version compatible with others.

FIX for :: jvm.dll file missing issue while you open eclipse
This issue appears because of (64 or 32 bit) version conflict/mismatch happens between
installed OS,
Java(JDK)version and
eclipse version.
I got this issue and fixed it in this way.by adding the below argument (64 bit Java(JDK) path) in eclipse.ini.
-vm
C:\Program Files\Java\jdk1.8.0_144\bin
My environment,details below
Mine is windows-7 64bit OS,
Java(JDK) 64 bit (so path specified in eclipse.ini)
Eclipse 64 bit(never confuse the eclipse version as 32 bit by seeing the win32.x86, see the later _64) i.e I use eclipse version below.
org.eclipse.equinox.launcher.win32.win32.x86_64_1.1.500.v20170511-1520
You can see your eclipse version in eclipse.ini file.
Note:
I have another Eclipse (plugin tool) installed in my machine, which had the same issue, was expecting 32 bit Java(JDK), After I fixed the issue by setting the path for 32bit Java1.8 in environment variables, the primary eclipse stopped working.
So I set 64bit Java1.8 path in eclipse.ini.
Now both eclipse.exe and my plugintool eclipse working fine.
Thanks,
Murali

Here we fristly check the ur path. when ur path is correctly. Then after u will move the given location (their checking jvm.dll file will be presented or not).
that type problem came max to max 64-bit systems.
Here main focus on path. when u set path then after retsart the system.

This happend to me yesterday and fortunately I found this post.
I was working on eclipse and tried to compile a class using the command line in paralell. I noticed that the javac command wasn't on the Path environment variable so I added.
Afterwards, I closed Eclipse and when I tried restarting the IDE I found the "Failed to load JNI shared Library" error.
I opened back the environment variable dialog box and pointed the java bin path to a compatible version of java (Same bit version on both, eclipse and jdk).
Finally I was able to start eclipse again.

Android SDK - java not found

This problem was asked many times, but none of solutions doesnt help me.
I am using Windows 7 SP1 (x64), JDK 1.7.0_03 (x86), JRE 7 (x86) and Android SDK Tools r16.
When I install Android SDK Tools it says -
Java SE Development Kit (JDK) version 1.7 has been found
But after install SDK Manager closes instantly. android.bat and find_java.bat say -
WARNING: Java not found in your path.
I have tried set enviroment variables JAVA_HOME, PATH manually but this doesnt help. Searching solution many hours, setting variables, reinstalling java / sdk - nothing helps.
Thanks in advance.

Install the x86 version, not the 64 bit version.

Android requires Java 1.5 or 1.6.
I haven't tested this, but I have seen posts about Android working with 1.7 as long as you also have 1.6 installed. Although this requires having two versions of java installed, and I am not sure it's worth it.

maybe you are using JRE, not JDK.
You can check which java you are using with: where java

I just set a Environment Variable named JAVA_HOME with the value: C:\Program Files\Java\jdk1.7.0_05\
The problem is solved and sdk works properly.

Well, I was facing the same problem, I found that the error might be a resolved by doing the following.
Download Android SDK, try to install, you get a java error (if you don't have it)
Typically you go download java, install and hit retry - but fail.
Adding JAVA_HOME didn't help, so I rebooted the pc and tried again.
Success, I don't know if it's the reboot after installing JAVA, or reboot after adding JAVA_HOME that solved the problem. One of them did the trick.
My recommendation is :
1. Install JAVA (in my case 1.7 x64), reboot.
2. Install android sdk, if it fails, add JAVA_HOME as explained above somewhere, reboot.
3. Install the sdk.

I know that this may be outdated, but someone would probably find it useful. I had this problem myself, easiest(maybe dirty) solution I came up with is to change the default location when installing android studio.
Something like this :
C:\Program files\Java\jdk-xxx\
to =>
C:\Program files(x86)\Java\jkd-xxx\
Installer is searching in x86 Program files folder probably for a 32bit version, but its working perfectly for me this way :)

If you believe you have JDK installed and it was not properly recognized, set SDK Location on Eclipse (Windows > Preference). You can open/Update SDK Manager thru Eclipse.
Work fine in my Windows 7 SP1 (x64), JDK 1.7.0_03 (x64), JRE 7 (x64) and Android SDK Tools r17.

Problems Installing Android SDK

I have had to install Java and Android on my new machine. I've downloaded jdk1.6.0_27. It's installed in C:\Program Files\Java\jdk1.6.0_27.
I've set the classpath env var to C:\Program Files\Java\jdk1.6.0_27\lib and the path var to C:\Program Files\Java\jdk1.6.0_27\bin. in cmd java - version works fine.
When i try to download Android, it checks to see if java is installed first. It's stating java not installed on my machine. I can't proceed with the Android download. Is there a reason for this?
Thanks,
Matt

This sounds crazy, but it works.
When that happens: press back, then next. I'm dead serious. It will detect java the second time around. I have no idea why.
As verified here:
Android SDK installation doesn't find JDK

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.

Do you have a JAVA_HOME variable defined? That might help. On my system I have JAVA_HOME set to
C:\PROGRA~2\Java\jdk1.6.0_24
A little odd perhaps (using the "~" dir instead of the "Program Files" dir, but seems to help with some older scripts that don't expect to see spaces in the path name.

Java Error opening registry key

I get this error when I try to do anything with Java in command prompt:
Error opening registry key 'Software\JavaSoft\Java Runtime Environment.3'
Error: could not find Java.dll
Error: could not find Java 2 Runtime Environment
I did screw around with deleting Java directories and registry a few days ago. I restarted computer and java was still working fine, then i restarted it again today and now I get this error. I have tried uninstalling and reinstalling but that doesn't seem to work. I have the latest java JRE installed and the path set in the environment variables. Anyone have any clue how to fix this?

Make sure you remove any java.exe, javaw.exe and javaws.exe from your Windows\System32 folder and if you have an x64 system (Win 7 64 bits) also do the same under Windows\SysWOW64.
If you can't find them at these locations, try deleting them from C:\ProgramData\Oracle\Java\javapath.

You will find a folder named "Oracle" on ProgramData folder in your windows installed drive. Remove the folder. Hope it will work.
In my case my install drive is C and my path is C:\ProgramData\Oracle

I had a similar problem. I had installed JDK7 update 1 but couldn't use it (probably because I found a JRE6 that I deleted after installing JDK7). Uninstalling JDK7 was impossible. The solution was to add the JRE registry entries by hand.
[HKEY_LOCAL_MACHINE\SOFTWARE\JavaSoft\Java Runtime Environment]
"CurrentVersion"="1.7"
[HKEY_LOCAL_MACHINE\SOFTWARE\JavaSoft\Java Runtime Environment\1.7]
"JavaHome"="C:\\Program Files\\Java\\jre7"
"RuntimeLib"="C:\\Program Files\\Java\\jre7\\bin\\client\\jvm.dll"
[HKEY_LOCAL_MACHINE\SOFTWARE\JavaSoft\Java Runtime Environment\1.7.0_01]
"JavaHome"="C:\\Program Files\\Java\\jre7"
"RuntimeLib"="C:\\Program Files\\Java\\jre7\\bin\\client\\jvm.dll"
You'll have to adjust the above to your own directories and version.
If this doesn't help, there's still JavaRa https://singularlabs.com/software/javara/ .

Delete these 3 files present in your local at path C:\ProgramData\Oracle\Java\javapath
java.exe
javaw.exe
javaws.exe
This solved the issue for me :)

Make sure you remove any java.exe, javaw.exe and javaws.exe from your system.
if you have an x32 system (Win XP 32 bits) Windows\System32 folder
if you have an x64 system (Win 7 64 bits) also do the same under Windows\SysWOW64 folder

On Windows 10 I had just installed the JDK, and got these errors when checking the version. I had to delete all executable files starting with java (i.e. java.exe, javaw.exe and javaws.exe) from C:\ProgramData\Oracle\Java\javapath. And then, once deleted, re-run the JDK installer, restart my terminal program and java -v works.

There are 3 locations to check
Registry HKEY_LOCAL_MACHINE\SOFTWARE\JavaSoft\Java Runtime Environment\1.8.0_xxx\JavaHome
Java Control Panel- Java tab - View - Path
Environment Variables - Path ($env:Path)
All 3 have to align (if you have multiple entires just remove the wrong ones) - thats all

I had the same:
Error opening registry key 'Software\JavaSoft\Java Runtime Environment
Clearing Windows\SysWOW64 doesn't help for Win7
In my case it installing JDK8 offline helped (from link)

I would have tagged this as a comment but cant (dont have the rep) just wanted to thank Tilman. I was trying to get PDFsam (PDF Split and Merge) to work to no avail.
At launch it would produce an error stating that it could not find JRE 1.6.0. I Have both 32 and 64 bit versions and they check out fine at the java website in their respective browsers.
Tried uninstalling/reinstalling and rebooting repeatedly as well as using JavaRa. No such luck, still no go.
I looked in the registry after reading this post and there was no ...\SOFTWARE\JavaSoft\ key so I added each with their respective string values pointing to my x86 version (PDFsam is a 32bit program). This got past the first problem but an error popped up about amd64 libraries suggesting the machine wanted to run the 64bit version. So I changed the paths to the 64bit JRE and PDFsam now works.
FYI - I got here by searching for Java registry keys after I was unable to launch javaw.exe from command prompt (even after adding the requisite paths to system path), making the aforementioned changes solved this as well.

I got this kind of error whe nI had JDK 1.7 before and I installed JAVA JDK 1.8 and pointed my JAVA_HOME and PATH variables to JAVA 1.8 version. When I try to find the java version I got this error. I restarted my machine, and it works . It seems to be we have to restart the machine after modifying the environment variables.

In case a virus scanner (like McAfee) is running, try:
Disable virus scanner
Uninstall Java (via Control Panel / Programs and Features)
Reinstall Java (from Java.com)
Re-enable virus scanner

Uninstall Java (via Control Panel / Programs and Features)
Install Java JRE 7 --> OFFLINE <--
Configure JAVA_HOME and Path = %JAVA_HOME%/bin;%PATH%

I have Windows 7. I got the same problem after installing: PyCharm.
I wasn't satisfied with PyCharm, so I decided to use Eclipse instead. This is when I discovered that things went wrong with my JDK. I used to have Java.9.x. So I decided to uninstall it and get the newer version (at my time it was Java.11.x. The same problem persisted.
I followed most of the steps mentioned above in the post like:
- Removing all java*.exe files,
- removing Java related entries from the registry.
- Cleaning-up all unnecessary Java folders. However nothing helped. I still had something in the system referring to a broken Java pathname.
What really brought remedy is the following:
- Uninstalled what ever version of JDK I had at the moment.
- Re-Installed the last JDK version I had before the problem took place
- Properly uninstall that version.
- Install whatever latest version of SDK. ..
That's it .. at this point everything returned to normal ... Except that Java.11.xx did not fix the system path automatically, I had to do it manually.

I followed multiple answers from above and got my issue resolved.
Issue:
Javac was on 13 from jdk but java was using 1.8 from jre so java threw incompatible runtime error
Fix:
Under Control Panel -> Programs: I uninstalled 1.8 (named Java 8 runtime) and DID NOT touch the other one (named Java (TM) SE Development Kit 13)
Deleted java.exe, javac.exe and javawc.exe files from:
a. C:\Windows\system32
b. C:\Windows\SysWOW64
c. C:\ProgramData\Oracle\Java\javapath
The environment variable JDK_HOME was pointing to 13 but JAVA_HOME was pointing to 1.8 so i pointed JAVA_HOME to also use 13 which was C:\Program Files\Java\jdk-13.0.1
There was a Path variable under both User variables and system variables sections.
For the one in user variables section, i added the string %JDK_HOME% - which translated automatically to the physical path.
For the one under system variables, I deleted the path C:\ProgramData\Oracle\Java\javapath and added C:\Program Files\Java\jdk-13.0.1\bin
All good now! Thanks to all the people who answered, you rock!

Make sure to delete java references from system32, SysWOW64, and delete javapath from ProgramData\Oracle\Java. It solves the issue

If you have "C:\ProgramData\Oracle\Java\javapath" in your PATH, just make sure that the java bin path entries are present before this entry in your PATH.
I was facing the exact same issue, and I just moved the java jdk/jre bin path entries up in the list, above the oracle entry and it resolved my issue.