node {
    stage 'Load a file from GitHub'
    def helloworld = fileLoader.fromGit('examples/fileLoader/helloworld', 'https://github.com/jenkinsci/workflow-remote-loader-plugin.git', 'master', null, '')

    sleep 15
    sh 'pwd'
    sh 'sleep 10'
    
    helloworld.printHello()

    stage '1'
    print 'here at stage1' 
}

[Pipeline] End of Pipeline
java.io.IOException: Failed to load persisted workflow state
	at org.jenkinsci.plugins.workflow.cps.CpsFlowExecution$3.onSuccess(CpsFlowExecution.java:585)
	at org.jenkinsci.plugins.workflow.cps.CpsFlowExecution$3.onSuccess(CpsFlowExecution.java:583)
	at org.jenkinsci.plugins.workflow.cps.CpsFlowExecution$4$1.run(CpsFlowExecution.java:626)
	at org.jenkinsci.plugins.workflow.cps.CpsVmExecutorService$1.run(CpsVmExecutorService.java:32)
	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
	at hudson.remoting.SingleLaneExecutorService$1.run(SingleLaneExecutorService.java:112)
	at jenkins.util.ContextResettingExecutorService$1.run(ContextResettingExecutorService.java:28)
	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
	at java.lang.Thread.run(Thread.java:745)
Caused by: java.lang.ClassNotFoundException: org.jenkinsci.plugins.workflow.remoteloader.FileLoaderDSLImpl
	at java.net.URLClassLoader.findClass(URLClassLoader.java:381)
	at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
	at groovy.lang.GroovyClassLoader.loadClass(GroovyClassLoader.java:692)
	at groovy.lang.GroovyClassLoader$InnerLoader.loadClass(GroovyClassLoader.java:445)
	at groovy.lang.GroovyClassLoader.loadClass(GroovyClassLoader.java:802)
	at groovy.lang.GroovyClassLoader.loadClass(GroovyClassLoader.java:790)
	at java.lang.Class.forName0(Native Method)
	at java.lang.Class.forName(Class.java:348)
	at org.jboss.marshalling.AbstractClassResolver.loadClass(AbstractClassResolver.java:131)
	at org.jboss.marshalling.AbstractClassResolver.resolveClass(AbstractClassResolver.java:112)
	at org.jboss.marshalling.river.RiverUnmarshaller.doReadClassDescriptor(RiverUnmarshaller.java:949)
	at org.jboss.marshalling.river.RiverUnmarshaller.doReadNewObject(RiverUnmarshaller.java:1256)
	at org.jboss.marshalling.river.RiverUnmarshaller.doReadObject(RiverUnmarshaller.java:276)
	at org.jboss.marshalling.river.BlockUnmarshaller.readObject(BlockUnmarshaller.java:149)
	at org.jboss.marshalling.river.BlockUnmarshaller.readObject(BlockUnmarshaller.java:135)
	at org.jboss.marshalling.MarshallerObjectInputStream.readObjectOverride(MarshallerObjectInputStream.java:53)
	at org.jboss.marshalling.river.RiverObjectInputStream.readObjectOverride(RiverObjectInputStream.java:307)
	at java.io.ObjectInputStream.readObject(ObjectInputStream.java:365)
	at java.util.HashMap.readObject(HashMap.java:1396)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:497)
	at org.jboss.marshalling.reflect.SerializableClass.callReadObject(SerializableClass.java:307)
	at org.jboss.marshalling.river.RiverUnmarshaller.doInitSerializable(RiverUnmarshaller.java:1638)
	at org.jboss.marshalling.river.RiverUnmarshaller.doInitSerializable(RiverUnmarshaller.java:1607)
	at org.jboss.marshalling.river.RiverUnmarshaller.doReadNewObject(RiverUnmarshaller.java:1286)
	at org.jboss.marshalling.river.RiverUnmarshaller.doReadObject(RiverUnmarshaller.java:276)
	at org.jboss.marshalling.river.BlockUnmarshaller.readObject(BlockUnmarshaller.java:149)
	at org.jboss.marshalling.river.BlockUnmarshaller.readObject(BlockUnmarshaller.java:135)
	at org.jboss.marshalling.MarshallerObjectInputStream.readObjectOverride(MarshallerObjectInputStream.java:53)
	at org.jboss.marshalling.river.RiverObjectInputStream.readObjectOverride(RiverObjectInputStream.java:307)
	at java.io.ObjectInputStream.readObject(ObjectInputStream.java:365)
	at com.cloudbees.groovy.cps.SerializableScript.readObject(SerializableScript.java:30)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:497)
	at org.jboss.marshalling.reflect.SerializableClass.callReadObject(SerializableClass.java:307)
	at org.jboss.marshalling.river.RiverUnmarshaller.doInitSerializable(RiverUnmarshaller.java:1638)
	at org.jboss.marshalling.river.RiverUnmarshaller.doInitSerializable(RiverUnmarshaller.java:1607)
	at org.jboss.marshalling.river.RiverUnmarshaller.doInitSerializable(RiverUnmarshaller.java:1607)
	at org.jboss.marshalling.river.RiverUnmarshaller.doReadNewObject(RiverUnmarshaller.java:1286)
	at org.jboss.marshalling.river.RiverUnmarshaller.doReadObject(RiverUnmarshaller.java:276)
	at org.jboss.marshalling.river.RiverUnmarshaller.doReadObject(RiverUnmarshaller.java:224)
	at org.jboss.marshalling.river.RiverUnmarshaller.readFields(RiverUnmarshaller.java:1746)
	at org.jboss.marshalling.river.RiverUnmarshaller.doInitSerializable(RiverUnmarshaller.java:1659)
	at org.jboss.marshalling.river.RiverUnmarshaller.doInitSerializable(RiverUnmarshaller.java:1607)
	at org.jboss.marshalling.river.RiverUnmarshaller.doInitSerializable(RiverUnmarshaller.java:1607)
	at org.jboss.marshalling.river.RiverUnmarshaller.doReadNewObject(RiverUnmarshaller.java:1286)
	at org.jboss.marshalling.river.RiverUnmarshaller.doReadObject(RiverUnmarshaller.java:276)
	at org.jboss.marshalling.river.BlockUnmarshaller.readObject(BlockUnmarshaller.java:149)
	at org.jboss.marshalling.river.BlockUnmarshaller.readObject(BlockUnmarshaller.java:135)
	at org.jboss.marshalling.MarshallerObjectInputStream.readObjectOverride(MarshallerObjectInputStream.java:53)
	at org.jboss.marshalling.river.RiverObjectInputStream.readObjectOverride(RiverObjectInputStream.java:307)
	at java.io.ObjectInputStream.readObject(ObjectInputStream.java:365)
	at java.util.HashMap.readObject(HashMap.java:1396)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:497)
	at org.jboss.marshalling.reflect.SerializableClass.callReadObject(SerializableClass.java:307)
	at org.jboss.marshalling.river.RiverUnmarshaller.doInitSerializable(RiverUnmarshaller.java:1638)
	at org.jboss.marshalling.river.RiverUnmarshaller.doReadNewObject(RiverUnmarshaller.java:1286)
	at org.jboss.marshalling.river.RiverUnmarshaller.doReadObject(RiverUnmarshaller.java:276)
	at org.jboss.marshalling.river.RiverUnmarshaller.doReadObject(RiverUnmarshaller.java:224)
	at org.jboss.marshalling.river.RiverUnmarshaller.readFields(RiverUnmarshaller.java:1746)
	at org.jboss.marshalling.river.RiverUnmarshaller.doInitSerializable(RiverUnmarshaller.java:1659)
	at org.jboss.marshalling.river.RiverUnmarshaller.doReadNewObject(RiverUnmarshaller.java:1286)
	at org.jboss.marshalling.river.RiverUnmarshaller.doReadObject(RiverUnmarshaller.java:276)
	at org.jboss.marshalling.river.RiverUnmarshaller.doReadObject(RiverUnmarshaller.java:209)
	at org.jboss.marshalling.AbstractObjectInput.readObject(AbstractObjectInput.java:41)
	at org.jenkinsci.plugins.workflow.cps.CpsFlowExecution$2.onSuccess(CpsFlowExecution.java:514)
	at org.jenkinsci.plugins.workflow.cps.CpsFlowExecution$2.onSuccess(CpsFlowExecution.java:507)
	at org.jenkinsci.plugins.workflow.support.concurrent.Futures$1.run(Futures.java:150)
	at com.google.common.util.concurrent.MoreExecutors$SameThreadExecutorService.execute(MoreExecutors.java:253)
	at com.google.common.util.concurrent.ExecutionList$RunnableExecutorPair.execute(ExecutionList.java:149)
	at com.google.common.util.concurrent.ExecutionList.execute(ExecutionList.java:134)
	at com.google.common.util.concurrent.AbstractFuture.set(AbstractFuture.java:170)
	at org.jenkinsci.plugins.workflow.support.concurrent.ChainingListenableFuture.access$000(ChainingListenableFuture.java:33)
	at org.jenkinsci.plugins.workflow.support.concurrent.ChainingListenableFuture$1.run(ChainingListenableFuture.java:196)
	at com.google.common.util.concurrent.MoreExecutors$SameThreadExecutorService.execute(MoreExecutors.java:253)
	at com.google.common.util.concurrent.ExecutionList$RunnableExecutorPair.execute(ExecutionList.java:149)
	at com.google.common.util.concurrent.ExecutionList.add(ExecutionList.java:105)
	at com.google.common.util.concurrent.AbstractFuture.addListener(AbstractFuture.java:155)
	at org.jenkinsci.plugins.workflow.support.concurrent.ChainingListenableFuture.run(ChainingListenableFuture.java:189)
	at com.google.common.util.concurrent.MoreExecutors$SameThreadExecutorService.execute(MoreExecutors.java:253)
	at com.google.common.util.concurrent.ExecutionList$RunnableExecutorPair.execute(ExecutionList.java:149)
	at com.google.common.util.concurrent.ExecutionList.execute(ExecutionList.java:134)
	at com.google.common.util.concurrent.AbstractFuture.set(AbstractFuture.java:170)
	at org.jenkinsci.plugins.workflow.support.concurrent.ChainingListenableFuture.access$000(ChainingListenableFuture.java:33)
	at org.jenkinsci.plugins.workflow.support.concurrent.ChainingListenableFuture$1.run(ChainingListenableFuture.java:196)
	at com.google.common.util.concurrent.MoreExecutors$SameThreadExecutorService.execute(MoreExecutors.java:253)
	at com.google.common.util.concurrent.ExecutionList$RunnableExecutorPair.execute(ExecutionList.java:149)
	at com.google.common.util.concurrent.ExecutionList.add(ExecutionList.java:105)
	at com.google.common.util.concurrent.AbstractFuture.addListener(AbstractFuture.java:155)
	at org.jenkinsci.plugins.workflow.support.concurrent.ChainingListenableFuture.run(ChainingListenableFuture.java:189)
	at com.google.common.util.concurrent.MoreExecutors$SameThreadExecutorService.execute(MoreExecutors.java:253)
	at com.google.common.util.concurrent.ExecutionList$RunnableExecutorPair.execute(ExecutionList.java:149)
	at com.google.common.util.concurrent.ExecutionList.execute(ExecutionList.java:134)
	at com.google.common.util.concurrent.AbstractFuture.set(AbstractFuture.java:170)
	at org.jenkinsci.plugins.workflow.support.concurrent.ListFuture.setOneValue(ListFuture.java:158)
	at org.jenkinsci.plugins.workflow.support.concurrent.ListFuture.access$000(ListFuture.java:40)
	at org.jenkinsci.plugins.workflow.support.concurrent.ListFuture$2.run(ListFuture.java:107)
	at com.google.common.util.concurrent.MoreExecutors$SameThreadExecutorService.execute(MoreExecutors.java:253)
	at com.google.common.util.concurrent.ExecutionList$RunnableExecutorPair.execute(ExecutionList.java:149)
	at com.google.common.util.concurrent.ExecutionList.execute(ExecutionList.java:134)
	at com.google.common.util.concurrent.AbstractFuture.set(AbstractFuture.java:170)
	at org.jenkinsci.plugins.workflow.support.concurrent.ChainingListenableFuture.access$000(ChainingListenableFuture.java:33)
	at org.jenkinsci.plugins.workflow.support.concurrent.ChainingListenableFuture$1.run(ChainingListenableFuture.java:196)
	at com.google.common.util.concurrent.MoreExecutors$SameThreadExecutorService.execute(MoreExecutors.java:253)
	at com.google.common.util.concurrent.ExecutionList$RunnableExecutorPair.execute(ExecutionList.java:149)
	at com.google.common.util.concurrent.ExecutionList.add(ExecutionList.java:105)
	at com.google.common.util.concurrent.AbstractFuture.addListener(AbstractFuture.java:155)
	at org.jenkinsci.plugins.workflow.support.concurrent.ChainingListenableFuture.run(ChainingListenableFuture.java:189)
	at com.google.common.util.concurrent.MoreExecutors$SameThreadExecutorService.execute(MoreExecutors.java:253)
	at com.google.common.util.concurrent.ExecutionList$RunnableExecutorPair.execute(ExecutionList.java:149)
	at com.google.common.util.concurrent.ExecutionList.execute(ExecutionList.java:134)
	at com.google.common.util.concurrent.AbstractFuture.set(AbstractFuture.java:170)
	at org.jenkinsci.plugins.workflow.support.pickles.TryRepeatedly.access$500(TryRepeatedly.java:47)
	at org.jenkinsci.plugins.workflow.support.pickles.TryRepeatedly$1.run(TryRepeatedly.java:106)
	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
	... 3 more
Finished: FAILURE