Exception in thread "main" java.lang.UnsupportedClassVersionError: org/openqa/gr
id/selenium/GridLauncher (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)

java -version

/usr/local/jre6/bin/java -jar selenium.jar

"C:Program Files (x86)Javajre6binjava.exe" -jar selenium.jar

Picked up _JAVA_OPTIONS: -Duser.home=C:Usersxxxx
java version "1.7.0_151"
Java(TM) SE Runtime Environment (build 1.7.0_151-b33)
Java HotSpot(TM) Client VM (build 24.151-b33, mixed mode)

C:Program FilesJavajdk1.8.0_91

C:Program Files (x86)Javajre7bin;

C:Program FilesJavajdk1.8.0_91jrebin; C:Program Files (x86)Javajre7bin;