The recommended git tool is: NONE
ERROR: Checkout failed
java.nio.channels.ClosedChannelException
Also:   hudson.remoting.Channel$CallSiteStackTrace: Remote call to JNLP4-connect connection from 127.0.0.6/127.0.0.6:52995
		at hudson.remoting.Channel.attachCallSiteStackTrace(Channel.java:1916)
		at hudson.remoting.Request.call(Request.java:204)
		at hudson.remoting.Channel.call(Channel.java:1107)
		at hudson.FilePath.act(FilePath.java:1208)
		at hudson.FilePath.act(FilePath.java:1197)
		at PluginClassLoader for git-client//org.jenkinsci.plugins.gitclient.Git.getClient(Git.java:145)
		at PluginClassLoader for git//hudson.plugins.git.GitSCM.createClient(GitSCM.java:914)
		at PluginClassLoader for git//hudson.plugins.git.GitSCM.createClient(GitSCM.java:845)
		at PluginClassLoader for git//hudson.plugins.git.GitSCM._checkout(GitSCM.java:1299)
		at PluginClassLoader for git//hudson.plugins.git.GitSCM.checkout(GitSCM.java:1277)
		at PluginClassLoader for workflow-scm-step//org.jenkinsci.plugins.workflow.steps.scm.SCMStep.checkout(SCMStep.java:136)
		at PluginClassLoader for workflow-scm-step//org.jenkinsci.plugins.workflow.steps.scm.SCMStep$StepExecutionImpl.run(SCMStep.java:101)
		at PluginClassLoader for workflow-scm-step//org.jenkinsci.plugins.workflow.steps.scm.SCMStep$StepExecutionImpl.run(SCMStep.java:88)
		at PluginClassLoader for workflow-step-api//org.jenkinsci.plugins.workflow.steps.SynchronousNonBlockingStepExecution.lambda$start$0(SynchronousNonBlockingStepExecution.java:49)
Caused: hudson.remoting.RequestAbortedException
	at hudson.remoting.Request.abort(Request.java:358)
	at hudson.remoting.Channel.terminate(Channel.java:1189)
	at org.jenkinsci.remoting.protocol.impl.ChannelApplicationLayer.onReadClosed(ChannelApplicationLayer.java:241)
	at org.jenkinsci.remoting.protocol.ApplicationLayer.onRecvClosed(ApplicationLayer.java:221)
	at org.jenkinsci.remoting.protocol.ProtocolStack$Ptr.onRecvClosed(ProtocolStack.java:826)
	at org.jenkinsci.remoting.protocol.FilterLayer.onRecvClosed(FilterLayer.java:289)
	at org.jenkinsci.remoting.protocol.impl.SSLEngineFilterLayer.onRecvClosed(SSLEngineFilterLayer.java:176)
	at org.jenkinsci.remoting.protocol.impl.SSLEngineFilterLayer.switchToNoSecure(SSLEngineFilterLayer.java:278)
	at org.jenkinsci.remoting.protocol.impl.SSLEngineFilterLayer.processWrite(SSLEngineFilterLayer.java:502)
	at org.jenkinsci.remoting.protocol.impl.SSLEngineFilterLayer.processQueuedWrites(SSLEngineFilterLayer.java:243)
	at org.jenkinsci.remoting.protocol.impl.SSLEngineFilterLayer.doSend(SSLEngineFilterLayer.java:195)
	at org.jenkinsci.remoting.protocol.impl.SSLEngineFilterLayer.doCloseSend(SSLEngineFilterLayer.java:208)
	at org.jenkinsci.remoting.protocol.ProtocolStack$Ptr.doCloseSend(ProtocolStack.java:794)
	at org.jenkinsci.remoting.protocol.ApplicationLayer.doCloseWrite(ApplicationLayer.java:172)
	at org.jenkinsci.remoting.protocol.impl.ChannelApplicationLayer$ByteBufferCommandTransport.closeWrite(ChannelApplicationLayer.java:348)
	at hudson.remoting.Channel.close(Channel.java:1619)
	at hudson.remoting.Channel.close(Channel.java:1567)
	at hudson.slaves.SlaveComputer.closeChannel(SlaveComputer.java:957)
	at hudson.slaves.SlaveComputer$2.run(SlaveComputer.java:827)
	at jenkins.util.ContextResettingExecutorService$1.run(ContextResettingExecutorService.java:28)
	at jenkins.security.ImpersonatingExecutorService$1.run(ImpersonatingExecutorService.java:68)
	at jenkins.util.ErrorLoggingExecutorService.lambda$wrap$0(ErrorLoggingExecutorService.java:51)
	at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source)
	at java.base/java.util.concurrent.FutureTask.run(Unknown Source)
	at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
	at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
	at java.base/java.lang.Thread.run(Unknown Source)
ERROR: Maximum checkout retry attempts reached, aborting