Jenkins cannot find a suitable Java program when it starts slave

Today add slave and unsuccessful, I use the right button, found random point of the Java open, the results just bounced off the window, the display did not start successfully.

It's a small white idea, but I've been dealing with tools for a long time, and it's a bit logical to think wrong.

Must have used an inappropriate program to open this file, since I have already done all the Java settings.

So where's the problem, I found jre7 below, as instructed:

• Run from slave command line:

  Javaws HTTP://SGHW-AUTOTEST.2KGAMES.T2.CORP:8080/COMPUTER/SLAVE_BADASST4/SLAVE-AGENT.JNLP

• Or if the slave is headless:

Java-jar Slave.jar-jnlpurl HTTP://SGHW-AUTOTEST.2KGAMES.T2.CORP:8080/COMPUTER/SLAVE_BADASST4/SLAVE-AGENT.JNLP

Under CMD, go to the JRE directory and locate Javaws.exe. Drag into the cmd and enter the URL to correctly pop up the confirmation box. Yes, sure.
The second method also tried and passed smoothly.

The point is that this is also troublesome, so open with, select Specify program to Javaws.exe under the JRE directory. can also be opened.
Then cut back right-click to see:

Jenkins cannot find a suitable Java program when it starts slave