Error Fail to load Java class LWAinstall_bat

Description

The following error is returned from "cmd.exe" just after running the LWAinstall.bat file.

Message

set CLASSPATH=;.;.\jdom-1.1.jar;.\LWAInstall.jar :\LWATMP\LWA 2.4>java com.loftware.install.LoftwareWebAccessInstall xception in thread "main" java.lang.UnsupportedClassVersionError: com/loftware/ nstall/LoftwareWebAccessInstall (Unsupported major.minor version 50.0) at java.lang.ClassLoader.defineClass0(Native Method) at java.lang.ClassLoader.defineClass(Unknown Source) at java.security.SecureClassLoader.defineClass(Unknown Source) at java.net.URLClassLoader.defineClass(Unknown Source) at java.net.URLClassLoader.access$100(Unknown Source) at java.net.URLClassLoader$1.run(Unknown Source) at java.security.AccessController.doPrivileged(Native Method) at java.net.URLClassLoader.findClass(Unknown Source) at java.lang.ClassLoader.loadClass(Unknown Source) at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source) at java.lang.ClassLoader.loadClass(Unknown Source) at java.lang.ClassLoader.loadClassInternal(Unknown Source) :

Ramifications include:

Install fails.
No LWAinstall.log file is created.

Potential Causes:

Multiple Java versions installed.
Oracle is installed on the same machine where the path to JAVA_HOME is not being correctly identified.

Solution

Use the set path command prior to running the LWAinstall.bat file to explicitly set the path to the required JRE.

For example:

For 64 Bit Installs:
C:\LWAtmp> set path C:\Program Files\Java\JRE6\bin%PATH%

For 32 Bit Installs: 
C:\LWAtmp> set path C:\Program Files (x86)\Java\JRE6\bin%PATH%

Article Number

2015086

Versions

All LWA versions.

Environment