当我试图通过共享库在Jenkins中使用GitSCM类签出代码时，为什么会出现堆栈溢出错误？

Question

当我将使用管道语法生成器生成的GitSCM语法放在一个脚本化的Jenkinsfile中时，它似乎工作得很好。

Jenkinsfile：

node('Maven Agent') {
   stage('Checkout') {
    checkout([$class: 'GitSCM', branches: [[name: '*/master']], doGenerateSubmoduleConfigurations: false, extensions: [], submoduleCfg: [], userRemoteConfigs: [[credentialsId: 'Github-Creds', url: 'https://github.com/some-user/some-repo.git']]]);
   }
}

但是，当我取出工作台并将其放入groovy共享库函数中，并从Jenkinsfile中调用该函数时，在多次递归运行后，它会给我一个堆栈溢出错误。

修改后的Jenkinsfile：

node('Maven Agent') {
   ci.checkout();
}

共享库函数：

def checkout(Map config=[:], Closure body={}) {
    stage('Check Out') 
    {         
        checkout([$class: 'GitSCM', branches: [[name: '*/master']], doGenerateSubmoduleConfigurations: false, extensions: [], submoduleCfg: [], userRemoteConfigs: [[credentialsId: 'Github-ims-devops-practice', url: 'https://github.com/ims-devops-practice/spec-files.git']]]);
    }
}

控制台日志如下：

[Pipeline] Start of Pipeline
[Pipeline] node
Running on Maven Agent in /home/ec2-user/workspace/springboot-pipeline@5
[Pipeline] {
[Pipeline] stage
[Pipeline] { (Check Out)
[Pipeline] stage
[Pipeline] { (Check Out)
[Pipeline] stage
[Pipeline] { (Check Out)
[Pipeline] stage
[Pipeline] { (Check Out)
[Pipeline] stage
[Pipeline] { (Check Out)
[Pipeline] End of Pipeline
java.lang.StackOverflowError
    at org.jboss.marshalling.river.RiverMarshaller.doWriteObject(RiverMarshaller.java:131)
    at org.jboss.marshalling.river.RiverMarshaller.doWriteFields(RiverMarshaller.java:1082)
    at org.jboss.marshalling.river.RiverMarshaller.doWriteSerializableObject(RiverMarshaller.java:1040)
    at org.jboss.marshalling.river.RiverMarshaller.doWriteObject(RiverMarshaller.java:920)
    at org.jboss.marshalling.river.RiverMarshaller.doWriteFields(RiverMarshaller.java:1082)
    at org.jboss.marshalling.river.RiverMarshaller.doWriteSerializableObject(RiverMarshaller.java:1040)
    at org.jboss.marshalling.river.RiverMarshaller.doWriteSerializableObject(RiverMarshaller.java:1019)
    at org.jboss.marshalling.river.RiverMarshaller.doWriteObject(RiverMarshaller.java:920)
    at org.jboss.marshalling.river.RiverMarshaller.doWriteFields(RiverMarshaller.java:1082)
    at org.jboss.marshalling.river.RiverMarshaller.doWriteSerializableObject(RiverMarshaller.java:1040)
    at org.jboss.marshalling.river.RiverMarshaller.doWriteSerializableObject(RiverMarshaller.java:1019)
    at org.jboss.marshalling.river.RiverMarshaller.doWriteObject(RiverMarshaller.java:920)
    at org.jboss.marshalling.river.RiverMarshaller.doWriteFields(RiverMarshaller.java:1082)
    at org.jboss.marshalling.river.RiverMarshaller.doWriteSerializableObject(RiverMarshaller.java:1040)
    at org.jboss.marshalling.river.RiverMarshaller.doWriteSerializableObject(RiverMarshaller.java:1019)
    at org.jboss.marshalling.river.RiverMarshaller.doWriteObject(RiverMarshaller.java:920)
    at org.jboss.marshalling.river.RiverMarshaller.doWriteFields(RiverMarshaller.java:1082)
    at org.jboss.marshalling.river.RiverMarshaller.doWriteSerializableObject(RiverMarshaller.java:1040)
    at org.jboss.marshalling.river.RiverMarshaller.doWriteSerializableObject(RiverMarshaller.java:1019)
    at org.jboss.marshalling.river.RiverMarshaller.doWriteObject(RiverMarshaller.java:920)
    at org.jboss.marshalling.river.RiverMarshaller.doWriteFields(RiverMarshaller.java:1082)
    at org.jboss.marshalling.river.RiverMarshaller.doWriteSerializableObject(RiverMarshaller.java:1040)
    at org.jboss.marshalling.river.RiverMarshaller.doWriteSerializableObject(RiverMarshaller.java:1019)
    at org.jboss.marshalling.river.RiverMarshaller.doWriteObject(RiverMarshaller.java:920)
    at org.jboss.marshalling.river.RiverMarshaller.doWriteFields(RiverMarshaller.java:1082)
    at org.jboss.marshalling.river.RiverMarshaller.doWriteSerializableObject(RiverMarshaller.java:1040)
    at org.jboss.marshalling.river.RiverMarshaller.doWriteSerializableObject(RiverMarshaller.java:1019)
    at org.jboss.marshalling.river.RiverMarshaller.doWriteObject(RiverMarshaller.java:920)
Finished: FAILURE

附注-为方便起见，缩短了控制台日志。

Answer 1

这是因为您的共享库checkout函数正在无休止地调用自己。