File Download fails - FATAL: Cannot invoke "String.startsWith(String)" because "rel" is null

[rmkanda]

Jenkins and plugins versions report

Jenkins: 2.479.1
OS: Linux - 6.1.112-124.190.amzn2023.x86_64
Java: 17.0.13 - Amazon.com Inc. (OpenJDK 64-Bit Server VM)
---
file-operations:321.vd98ef0161b_7e

What Operating System are you using (both controller, and any agents involved in the problem)?

Linux

Reproduction steps

stage('Download') {
      steps {
          script {
              sh "mkdir downloads"
              fileOperations([
                    fileDownloadOperation(url: 'https://...', targetLocation: 'downloads/')
                ])
          }
        }
      }

Expected Results

File should be downloaded

Actual Results

[Pipeline] sh
17:38:01 + mkdir downloads
[Pipeline] fileOperations
17:38:01 File Download Operation:
17:38:01 FATAL: Cannot invoke "String.startsWith(String)" because "rel" is null
17:38:01 FATAL: Cannot invoke "String.startsWith(String)" because "rel" is null
[Pipeline] }
[Pipeline] // script
[Pipeline] }

Anything else?

No response

Are you interested in contributing a fix?

Yes

[jonesbusy]

I confirm I can reproduce when testing this PR: #144

Not sure if it's a regression because of 2.479 or if it's something that never worked

The stacktrace is

hudson.remoting.ProxyException: hudson.AbortException: File Operations failed.
	at PluginClassLoader for file-operations//sp.sd.fileoperations.FileOperationsBuilder.perform(FileOperationsBuilder.java:52)
	at jenkins.tasks.SimpleBuildStep.perform(SimpleBuildStep.java:123)
	at PluginClassLoader for workflow-basic-steps//org.jenkinsci.plugins.workflow.steps.CoreStep$Execution.run(CoreStep.java:101)
	at PluginClassLoader for workflow-basic-steps//org.jenkinsci.plugins.workflow.steps.CoreStep$Execution.run(CoreStep.java:71)
	at PluginClassLoader for workflow-step-api//org.jenkinsci.plugins.workflow.steps.SynchronousNonBlockingStepExecution.lambda$start$0(SynchronousNonBlockingStepExecution.java:47)
	at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:572)
	at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:317)
	at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1144)
	at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:642)
	at java.base/java.lang.Thread.run(Thread.java:1583)

[jonesbusy]

Possible duplicate of #129

Not sure if the origin if file-operations-plugin or a workflow plugin issue. There is NO startsWith in this plugin

This work weel with freestyle. So it must be a regression or downstream breaking change somewhere else

[rmkanda]

Thanks @jonesbusy for looking into the issue. I looked into the code as well, it seems something outside of the plugin code.

[JReyesPetroil]

Use the help form. You must enter all the parameters to perform the action you need.

sh 'mkdir -p downloads'
fileOperations([
fileDownloadOperation(userName: '', password: '', proxyHost: '', proxyPort: '', targetFileName: 'wiremock.jar', url: 'https://repo1.maven.org/maven2/org/wiremock/wiremock-standalone/3.10.0/wiremock-standalone-3.10.0.jar', targetLocation: 'downloads/',)
])