When using blueocean-pipeline editor with when conditions in JenkinsFile we get errors about "Empty closure" and "Expected When Condition", below is JenkinsFile. 

If I load the above file and then click on edit in blue ocean I get the following errors

• Expected a when condition @ line 10, column 7.
• Expected a when condition @ line 18, column 7.
• Empty when closure, remove the property or add some content. @ line 10, column 7.
• Empty when closure, remove the property or add some content. @ line 18, column 7.

pipeline {
  agent any
  
  stages {
    stage('Make Coffee') {
      steps {
        echo 'Making Coffee'
      }
    }
    
    stage('Test Coffee') {
    when {
      changeRequest()
    }
      steps {
        echo 'Test'
      }
    }
    
    stage('Serve Coffee') {
    when {
      buildingTag()
     }
      steps {
        echo 'Drink the Coffee'
      }
    }
  }
  
    options {
    checkoutToSubdirectory('configuration')
        timestamps()

  }
}

I generated the When statements using the Declarative pipeline generator from with in Jenkins.

I also tested with the examples from the main jenkins site https://jenkins.io/doc/book/pipeline/syntax/ and when I add these to my jenkinsfile , the blueocean editor complains the same as above.

I am unsure if I am doing something incorrectly of of it a true bug so hopefully someone can look at this and provide some insights.

Also using the online documentation