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JVM could not be loaded on windows 7

Rashmi Zaregaonkar
Greenhorn

Joined: Sep 14, 2011
Posts: 2
I am facing one problem in my application as following:

Java classes from my application uses JRE6 files for execution so I have bundled JRE6 folder in my application. An exe from my application loads JVM using function: Loadlibrary(jvm.dll's path). This works fine on XP but on Windows 7 machine an error is being thrown - "Unable to load JVM error."
What could be the issue? any suggestion?

This error disappears on Windows 7 machine if I bundle the above exe(exe from my application) with JRE6 folder at the following path:
JRE6/bin/MyExe.
It seems that exe is able to find its JVM dependencies at the path - JRE6/bin/MyExe. But would it be JRE6 Copyright and Licensing violation if I bundle my exe with JRE6 and distribute it along with my application.

NOTE: Exe from my application only loads JVM and does not add/modify/delete any file from JRE6 folder.
Rob Spoor
Sheriff

Joined: Oct 27, 2005
Posts: 19651
    
  18

The JVM needs more than just a few files and folders to run. It also requires several registry keys, and you're probably missing quite a few.


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Rashmi Zaregaonkar
Greenhorn

Joined: Sep 14, 2011
Posts: 2
On win7 machine, copying exe from my application at the following path: "JRE6/bin/" resolves the issue.
Would it create any licensing related issues if I copy that exe at above mentioned path while distributing JRE6 folder along with my application?
Campbell Ritchie
Sheriff

Joined: Oct 13, 2005
Posts: 37950
    
  22
Welcome to the Ranch

You will have to look through the licenses to see whether you are allowed to do that. I don't know. I do not, however, think you can get a JRE to work with simply the java.exe file. Most computers have a Java™ runtime already installed, so it might be unnecessary. Or it may be possible to bundle your ,jar together with an installer program which installs Java™. I don't know how to do that, I am afraid.
ranchodas chanchad
Greenhorn

Joined: Sep 17, 2011
Posts: 1
Reinstall the program that uses the jvm.dll file. If the jvm.dll DLL error occurs when you use a particular program, reinstalling the program should replace the file.
Campbell Ritchie
Sheriff

Joined: Oct 13, 2005
Posts: 37950
    
  22
ranchodas chanchad, welcome to the Ranch
 
I agree. Here's the link: http://aspose.com/file-tools
 
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