Could not find java on launch on 64 bit system

rlucero · Joined: 28 Jan 2009 Posts: 1

Is there a work around for a Java Vurtual Machine Launcher error: "Error: could not find Java 2 Runtime Environment"

Sergei · Joined: 26 Jul 2007 Posts: 969

Hi rlucero,

LarryH · Joined: 05 Jun 2009 Posts: 2

itdeptcorp · Guest

well, I tried what you suggested and well that would not work

Our Environment:

Windows 2008 R2 64bit Server

Test 1: Installed Apatar to default folder, uninstalled Java 1.6, dl'ed JRE 1.5 installed, changed path - Ran application.bat as Admin - rebooted server

same error - Cannot find 'javaw'

Test 2: Unistalled Apatar, re-installed to c:\program files\ , checked path for Java - rebooted server

same error Cannot find 'javaw'

Very odd -

itdeptcorp · Guest

"Error:java.lang.UnsupportedClassVersionError"

C:\Program Files (x86)\Java\jre1.5.0_22

LarryH · Joined: 05 Jun 2009 Posts: 2

Hi Sergei,

Apatar is finding the wrong version.

More than likely you have several copies of javaw on your system. Java Update doesn't replace old versions, and several apps install their own. Apatar is finding the first one in the PATH environment variable.

Using Explorer you can search for "javaw" on your C: and if you have multiple ones, it will list the directories where their at, but you might not be able to delete them, depending on other applications relying on their particular version.

So, delete the ones you can and that will simplify it. Boldly deleting all of them comes highly recommended but then you have to check and clean up other apps.

Installing the JRE and adding the directory to the begining of the PATH might do the trick without deleting the others, but it's iffy. Any new patch might change it.

java -version
Will tell you which version is found first.

Hope that helps you out.

~Larry

Ludmila · Joined: 05 Jul 2007 Posts: 145

Just resolved another Windows 7 installation issue. I thought it might be useful so posing the description here.

System: 64bit Windows 7, UAC enabled

First there was an error like 'Cannot find javaw'
Check on java version from command line but the system didn't seem to see Java at all. Adjusting the path didn't help. So we just uninstalled the java that was there (in C:\Program Files (x86)\), downloaded the newest java from www.java.com (decided to try 64bit java) and installed it to C:\Program Files\ (this is the default folder Java installer proposed). Now the PC could see java ok

BUT

it was throwing 'Can't start application. Only one instance allowed'. All we did is we just uninstalled Apatar from C:\Program Files (x86)\Apatar and installed it to C:\Apatar directly (unchecked 'Java installer' at the first installer screen)
_________________

Ludmila Radzevich
Apatar VP
---
If you have issues using Apatar, feel free to submit a bug at http://apatarforge.org/bug

Apatar's contact form: http://www.apatar.com/contact_us.html

laaki · Guest

sir i have a doubt on apatar which application is used in that sowtware...