title: Jenkins scripted pipeline: exception groovy.lang.MissingPropertyException: No such property: idA for class: groovy.lang.Binding
body: <p>I have a simple scripted pipeline that invoke a log function at each stage. Log function makes a rest http post to a remote server without identifier at first invoke, than passing it in subsequent invocations.
  Here is the code:</p>
  
  <pre><code>import groovy.json.JsonSlurper
  
  node {
     timestamps {
          stage("Stage1") {
              log('start')
          }
          stage("Stage2") {
              lock("resource2") {
                  log('processing')
              }
          }
     }
  }
  
  
  idA = 0
  
  def log(state) {
      String body = null
      if (idA == 0) {
          body = """{
                  'state': '${state}'
              }   
              """
      } else {
          body = """{
                  'id': ${idA},
                  'state': '${state}'
              }   
              """
      }
  
      // fake post request with body, omitted
      def response = "{ 'id': 999 }"
  
      def slurper = new JsonSlurper()
      def resultJson = slurper.parseText(response)
      idA = resultJson.id
  
      echo "resultJson =  ${resultJson}"
      echo "idA = ${idA}"
  
      return "OK"
  }
  </code></pre>
  
  <p>and this is the error I receive on job run:</p>
  
  <pre><code>Running in Durability level: MAX_SURVIVABILITY
  [Pipeline] Start of Pipeline
  [Pipeline] node
  Running on Jenkins in /opt/bitnami/apps/jenkins/jenkins_home/workspace/TestPipeline
  [Pipeline] {
  [Pipeline] timestamps
  [Pipeline] {
  [Pipeline] stage
  [Pipeline] { (Stage1)
  [Pipeline] }
  [Pipeline] // stage
  [Pipeline] }
  [Pipeline] // timestamps
  [Pipeline] }
  [Pipeline] // node
  [Pipeline] End of Pipeline
  groovy.lang.MissingPropertyException: No such property: idA for class: groovy.lang.Binding
      at groovy.lang.Binding.getVariable(Binding.java:63)
      at org.jenkinsci.plugins.scriptsecurity.sandbox.groovy.SandboxInterceptor.onGetProperty(SandboxInterceptor.java:270)
      at org.kohsuke.groovy.sandbox.impl.Checker$6.call(Checker.java:291)
      at org.kohsuke.groovy.sandbox.impl.Checker.checkedGetProperty(Checker.java:295)
      at com.cloudbees.groovy.cps.sandbox.SandboxInvoker.getProperty(SandboxInvoker.java:29)
      at com.cloudbees.groovy.cps.impl.PropertyAccessBlock.rawGet(PropertyAccessBlock.java:20)
      at WorkflowScript.log(WorkflowScript:29)
      at WorkflowScript.run(WorkflowScript:8)
      at ___cps.transform___(Native Method)
      at com.cloudbees.groovy.cps.impl.PropertyishBlock$ContinuationImpl.get(PropertyishBlock.java:74)
      at com.cloudbees.groovy.cps.LValueBlock$GetAdapter.receive(LValueBlock.java:30)
      at com.cloudbees.groovy.cps.impl.PropertyishBlock$ContinuationImpl.fixName(PropertyishBlock.java:66)
      at sun.reflect.GeneratedMethodAccessor374.invoke(Unknown Source)
      at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
      at java.lang.reflect.Method.invoke(Method.java:498)
      at com.cloudbees.groovy.cps.impl.ContinuationPtr$ContinuationImpl.receive(ContinuationPtr.java:72)
      at com.cloudbees.groovy.cps.impl.ConstantBlock.eval(ConstantBlock.java:21)
      at com.cloudbees.groovy.cps.Next.step(Next.java:83)
      at com.cloudbees.groovy.cps.Continuable$1.call(Continuable.java:174)
      at com.cloudbees.groovy.cps.Continuable$1.call(Continuable.java:163)
      at org.codehaus.groovy.runtime.GroovyCategorySupport$ThreadCategoryInfo.use(GroovyCategorySupport.java:129)
      at org.codehaus.groovy.runtime.GroovyCategorySupport.use(GroovyCategorySupport.java:268)
      at com.cloudbees.groovy.cps.Continuable.run0(Continuable.java:163)
      at org.jenkinsci.plugins.workflow.cps.SandboxContinuable.access$001(SandboxContinuable.java:18)
      at org.jenkinsci.plugins.workflow.cps.SandboxContinuable.run0(SandboxContinuable.java:51)
      at org.jenkinsci.plugins.workflow.cps.CpsThread.runNextChunk(CpsThread.java:185)
      at org.jenkinsci.plugins.workflow.cps.CpsThreadGroup.run(CpsThreadGroup.java:405)
      at org.jenkinsci.plugins.workflow.cps.CpsThreadGroup.access$400(CpsThreadGroup.java:96)
      at org.jenkinsci.plugins.workflow.cps.CpsThreadGroup$2.call(CpsThreadGroup.java:317)
      at org.jenkinsci.plugins.workflow.cps.CpsThreadGroup$2.call(CpsThreadGroup.java:281)
      at org.jenkinsci.plugins.workflow.cps.CpsVmExecutorService$2.call(CpsVmExecutorService.java:67)
      at java.util.concurrent.FutureTask.run(FutureTask.java:266)
      at hudson.remoting.SingleLaneExecutorService$1.run(SingleLaneExecutorService.java:131)
      at jenkins.util.ContextResettingExecutorService$1.run(ContextResettingExecutorService.java:28)
      at jenkins.security.ImpersonatingExecutorService$1.run(ImpersonatingExecutorService.java:59)
      at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
      at java.util.concurrent.FutureTask.run(FutureTask.java:266)
      at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
      at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
      at java.lang.Thread.run(Thread.java:748)
  Finished: FAILURE
  </code></pre>
  
  <p>What am I doing wrong? Thank you</p>