Accessing variable outside of a closure in Groovy - groovy

Question

Is there a way, i can access a variable outside the closure. The closure here is a stage in the Jenkinsfile. So, the snippet looks like this:
node('pool'){
try{
stage('init'){
def list = []
//some code to create the list
}
stage('deploy'){
//use the list create in the above stage/closure
}
}
catch(err){
//some mail step
}
}
With this code, i cannot access the list which was created in the first stage/closure.
How can i set to get this newly created list accessible to the next stage/closure?

Answer 1

#tim_yates.. with your suggestion. This works. It was easy at the end :)
node('pool') {
try {
def list = [] //define the list outside of the closure
stage('init') {
//some code to create/push elements in the list
}
stage('deploy') {
//use the list create in the above stage/closure
}
} catch (err) {
//some mail step
}
}

Answer 2

I know it's late, but worths mentioning that when you define a type or def (for dynamic resolution) you're creating a local scope variable that will be available only inside the closure.
If you omit the declaration the variable will be available to the whole script:
node('pool'){
try {
stage('Define') {
list = 2
println "The value of list is $list"
}
stage('Print') {
list += 1
echo "The value of list is $list"
}
1/0 // making an exception to check the value of list
}
catch(err){
echo "Final value of list is $list"
}
}
Returns :
The value of list is 2
The value of list is 3
Final value of list is 3