Not a valid Java Home Error while installing Oracle Web Logic Server

Question

I need help to extract WLS, I tried to install WebLogic Server with CMD and i already setup java_home. But i've got the following error:

Extracting the installer . . . . . . Done
This installer must be executed using a Java Development Kit (JDK)
but C:\Program Files\Java\jre7 is not a valid JDK Java Home.
The log is located here: C:\Users\E440\AppData\Local\Temp\OraInstall2016-12-18_05-38-26AM\launcher2016-12-18_05-38-26AM.log.

Press Enter to exit

I trying to set JAVA_HOME

C:\Oracle\FMW>set java_home
JAVA_HOME=C:\Program Files\Java\jdk1.7.0_79

And that is the path that i set in environmet variable, but it still display the same error.
I change the command to specified the oracle home

C:\Oracle\FMW>java -jar fmw_12.2.1.2.0_wls_quick.jar oracle_home=C:\app\user\product\11.2.0\dbhome

But again the error is still the same.
The C:\Program Files\Java\jre7 path is not even in my environment variable.
Is there something I missed?

Answer 1

I had the same issue and found this way around:

1- Copied the installer to the JDK folder you want to use for the installation. In my case: C:\Program Files\Java\jdk1.8.0_121\bin (Just to make it easier to get to it from the command line latter)

2- Open cmd and navigate until the Java JDK folder

3- Then execute the installer using the java in that folder: ./java -jar fmw_12.2.1.3.0_wls.jar

Here is an image of what I did.

(Dont forget to remove the fmw_12.2.1.3.0_wls.jar from there after the installation is completed)

As I say, is just a way around if you just want to go over the issue and get Weblogic installed. Im sure there are more elegant solutions, but I hope this one helps ;-)

Answer 2

Set up the the path too (in addition to java_home), so the JDK comes before the JRE:

set path=C:\Program Files\Java\<JAVA_VERSION>\bin;%path%

Remember to change the <JAVA_VERSION> to your JAVA version.

eg:

set path=C:\Program Files\Java\jdk1.8.0_202\bin;%path%

Answer 3

I ran a command where java in command prompt and it showed me that the java was installed here:

C:\Program Files (x86)\Common Files\Oracle\Java\javapath\java.exe  

I deleted this from the environment variables under path in windows.