Unable to add a windows slave into Jenkins 2.177

[ANKUSH CHANDEL]

Hello All,

Please help me out with adding a Windows slave into Jenkins.
I am using Launch Method as "Launch agent by connecting it to the master".

Which provides me three options to connect the slave machine.

Connect agent to Jenkins one of these ways:

   - 
   
   [image: launch agent] 
   
<https://phlox-dv.itn.intraorange:4443/computer/WIN_10_Ankush/slave-agent.jnlp> 
Launch 
   agent from browser
   - 
   
   Run from agent command line:
   
   javaws http://Location:Port/computer/WIN_10_XXXXX/slave-agent.jnlp
   
   - 
   
   Or if the agent is headless:
   
   java -jar agent.jar 
<https://phlox-dv.itn.intraorange:4443/jnlpJars/agent.jar> -jnlpUrl 
http://Location:Port/computer/WIN_10_XXXXX/slave-agent.jnlp -workDir 
"C:\Jenkins\
   
   
I have tired these steps but it saying unable to launch the application.

C:\Jenkins>java -jar agent.jar -jnlpUrl 
http://Location:Port/computer/WIN_10_XXXXX/slave-agent.jnlp -workDir 
"C:\Jenkins"
Exception in thread "main" java.lang.UnsupportedClassVersionError: 
hudson/remoting/Launcher : Unsupported major.minor version 52.0
        at java.lang.ClassLoader.defineClass1(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.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 sun.launcher.LauncherHelper.checkAndLoadMain(Unknown Source)

C:\Jenkins>javaws 
http://Location:Port/computer/WIN_10_XXXXX/slave-agent.jnlp

C:\Jenkins>java -jar agent.jar -jnlpUrl 
http://Location:Port/computer/WIN_10_XXXXX/slave-agent.jnlp -workDir 
"C:\Jenkins"
Error: Registry key 'Software\JavaSoft\Java Runtime 
Environment'\CurrentVersion'
has value '1.8', but '1.7' is required.
Error: could not find java.dll
Error: Could not find Java SE Runtime Environment.


Please help me out with this.

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