android studio cannot find jdk in windows solution

[Stephen Black]

I have found a problem with the Android Studio studio.bat file
and here it is

::------------------------------------------------------
:: Locate a JDK installation directory which will be used to run the IDE.
:: Try (in order): ANDROID_STUDIO_JDK, ..\jre, JDK_HOME, JAVA_HOME.
:: ---------------------------------------------------------------------
IF EXIST "%ANDROID_STUDIO_JDK%" SET JDK=%ANDROID_STUDIO_JDK%
IF NOT "%JDK%" == "" GOTO jdk
IF EXIST "%~dp0\..\jre" SET JDK=%~dp0\..\jre
IF NOT "%JDK%" == "" GOTO jdk
IF EXIST "%JDK_HOME%" SET JDK=%JDK_HOME%
IF NOT "%JDK%" == "" GOTO jdk
IF EXIST "%JAVA_HOME%" SET JDK=%JAVA_HOME%
IF "%JDK%" == "" GOTO error

Do you see the problem in the last 2 lines of code?
It seems that if your environmental variable is %JAVA_HOME% the batch file will GOTO error
and an error message will be displayed and that's it NO ANDROID STUDIO FOR YOU,
even though %JAVA_HOME% contains a valid path, but if the environmental variable is something like
%ANDROID_STUDIO_JDK% like mine is because I created it myself then it will work

---

PROPOSED SOLUTIONS
(1) Edit the batch file
Where you see this

IF EXIST "%JAVA_HOME%" SET JDK=%JAVA_HOME%
IF "%JDK%" == "" GOTO error

Change it to this

IF EXIST "%JAVA_HOME%" SET JDK=%JAVA_HOME%
IF NOT "%JDK%" == "" GOTO jdk
IF "%JDK%" == "" GOTO error

(2) Create an environmental variable named %ANDROID_STUDIO_JDK%
as shown here
https://kb.wisc.edu/cae/page.php?id=24500

[Maneesh Godbole]

Well done! It's not everyday, someone posts a solution even before anybody posts the problem!
For your effort, you just earned yourself a cow! Moo!

Did you know we have a Android FAQ which is a Wiki? In other words you can edit it yourself to add this useful information to that page!

[Stephen Black]

The reason that nobody has asked yet is becuase this problem
only existed for such a short amount of time.
The latest Android Studio does not even have or require a .bat file
so this solution is outdated
I therefore think that it is best that this information NOT be in the wiki

Unfortunately I was unlucky enough to install Android studio just when the problem existed