[2017-03-13 17:57:58] [windows-slaves] Connecting to dewxxxdev-bn02
Checking if Java exists

java -version returned 1.8.0.
[2017-03-13 17:58:00] [windows-slaves] Installing the Jenkins slave service
[2017-03-13 17:58:00] [windows-slaves] Copying jenkins-slave.exe
[2017-03-13 17:58:00] [windows-slaves] Copying slave.jar
[2017-03-13 17:58:00] [windows-slaves] Copying jenkins-slave.xml
ERROR: Unexpected error in launching an agent. This is probably a bug in Jenkins
java.lang.NullPointerException
	at java.io.Reader.<init>(Reader.java:78)
	at java.io.InputStreamReader.<init>(InputStreamReader.java:113)
	at org.apache.commons.io.IOUtils.copy(IOUtils.java:1906)
	at org.apache.commons.io.IOUtils.toString(IOUtils.java:778)
	at org.apache.commons.io.IOUtils.toString(IOUtils.java:803)
	at hudson.os.windows.ManagedWindowsServiceLauncher.generateSlaveXml(ManagedWindowsServiceLauncher.java:520)
	at hudson.os.windows.ManagedWindowsServiceLauncher.createAndCopyJenkinsSlaveXml(ManagedWindowsServiceLauncher.java:456)
	at hudson.os.windows.ManagedWindowsServiceLauncher.launch(ManagedWindowsServiceLauncher.java:301)
	at hudson.slaves.SlaveComputer$1.call(SlaveComputer.java:262)
	at jenkins.util.ContextResettingExecutorService$2.call(ContextResettingExecutorService.java:46)
	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
	at java.lang.Thread.run(Thread.java:745)

<?xml version='1.0' encoding='UTF-8'?>
<slave>
  <name>dewxxxdev-bn02</name>
  <description>Windows 64-bit (x86_64) release build machine</description>
  <remoteFS>D:\Jenkins</remoteFS>
  <numExecutors>12</numExecutors>
  <mode>EXCLUSIVE</mode>
  <retentionStrategy class="hudson.slaves.RetentionStrategy$Always"/>
  <launcher class="hudson.os.windows.ManagedWindowsServiceLauncher" plugin="windows-slaves@1.2">
    <userName>DOMAIN\username</userName>
    <password>{xxx}</password>
    <account class="hudson.os.windows.ManagedWindowsServiceAccount$Administrator"/>
  </launcher>
  <label>kernel windows x86_64 release</label>
  <nodeProperties/>
</slave>