Error in email template for Robot framework when using multiple script blocks in pipeline - email

Question

Im using Jenkins in Windows 10 with pipeline script running a robot script and then sending a email with the results.
The template I'm using is this opne
I've tried using different setups in the jenkinsfile (including using a scripted version) but basically this works:
pipeline {
agent any
stages {
stage('Build') {
steps {
script{
bat "robot -v store:${storeID} -v testType:${testType} -v site:${pageID} -v productName: previews.robot"
}
}
}
}
post {
always{
script{
step(
[
$class : 'RobotPublisher',
outputPath : '.',
outputFileName : 'output.xml',
reportFileName : 'report.html',
logFileName : 'log.html',
disableArchiveOutput: false,
passThreshold : 50,
unstableThreshold : 40,
otherFiles : "*.png",
]
)
def emailBody = '''${SCRIPT, template="robot.template"}'''
emailext body: emailBody,
subject: "[JENKINS BUILD]",
recipientProviders: [[$class: 'DevelopersRecipientProvider'], [$class: 'RequesterRecipientProvider']]
}
archiveArtifacts '*.html, *.xml, *.png'
}
}
}
But if I add another stage with some scripting, as for example, change the build name, then I will get a template error.
Pipeline that generates error:
pipeline {
agent any
stages {
stage('Init'){
steps{
script{
def name = ""
switch(testType){
case "newProduct":
def tmpProduct = pageID.split("/")
productName = tmpProduct[tmpProduct.size()-1]
name= storeID+": New Product ("+productName+")"
break
case "newHomepage":
name = storeID+": New Homepage"
break
case "newBlog":
name = storeID+": New Blog Post"
break
case "cosmetics":
name = storeID+": UI Changes"
break
default:
name = "Test type empty"
break
}
currentBuild.displayName = name
}
}
}
stage('Build') {
steps {
script{
bat "robot -v store:${storeID} -v testType:${testType} -v site:${pageID} -v productName: previews.robot"
}
}
}
}
post {
always{
script{
step(
[
$class : 'RobotPublisher',
outputPath : '.',
outputFileName : 'output.xml',
reportFileName : 'report.html',
logFileName : 'log.html',
disableArchiveOutput: false,
passThreshold : 50,
unstableThreshold : 40,
otherFiles : "*.png",
]
)
def emailBody = '''${SCRIPT, template="robot.template"}'''
emailext body: emailBody,
subject: "[JENKINS BUILD]",
recipientProviders: [[$class: 'DevelopersRecipientProvider'], [$class: 'RequesterRecipientProvider']]
}
archiveArtifacts '*.html, *.xml, *.png'
}
}
}
The name of the build is changed correctly and the script runs to the end without issues BUT in the email and console output I can see a template error:
Exception raised during template rendering: Cannot get property 'simpleName' on null object
java.lang.NullPointerException: Cannot get property 'simpleName' on null object
Any Pointers? I would really like to make a pipeline more rich but I will stay with the basic if I can't solve this problem...

Answer 1

Modify robot.template as below,which solved this problem.
if( action && (action.class.simpleName.equals("RobotBuildAction") ) )