Oct 16, 2015 7:50:05 AM hudson.slaves.NodeProvisioner$StandardStrategyImpl apply
INFO: Started provisioning ECS Slave docker from jenkins with 1 executors. Remaining excess workload: 0
Oct 16, 2015 7:50:05 AM com.cloudbees.jenkins.plugins.amazonecs.ECSCloud$ProvisioningCallback call
INFO: Created Slave: jenkins-b1a9526a-ef21-4d63-a52a-1da7be3986ba
Oct 16, 2015 7:50:15 AM hudson.slaves.NodeProvisioner$2 run
WARNING: Provisioned slave ECS Slave docker failed to launch
java.lang.NullPointerException
	at com.amazonaws.services.ecs.AmazonECSClient.invoke(AmazonECSClient.java:2187)
	at com.amazonaws.services.ecs.AmazonECSClient.registerTaskDefinition(AmazonECSClient.java:1091)
	at com.cloudbees.jenkins.plugins.amazonecs.ECSCloud$ProvisioningCallback.call(ECSCloud.java:196)
	at com.cloudbees.jenkins.plugins.amazonecs.ECSCloud$ProvisioningCallback.call(ECSCloud.java:175)
	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)