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  1. Jenkins
  2. JENKINS-59844

Process Launcher shouldn't throw ArrayIndexOutOfBoundException on empty command

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    • Icon: Improvement Improvement
    • Resolution: Unresolved
    • Icon: Minor Minor
    • core
    • Oracle JRE 8 and 11
      Jenkins 2.190.1

      If you try to launch a blank command  ('  ') using Launch.ProcStarter#cmdAsSingleString, an ArrayIndexOutOfBoundException is thrown.

      Example of command invocation:

      launcher.launch()
    .cmdAsSingleString("   ")
    .envs(computer.getEnvironment())
    .readStdout()
    .pwd(rootPath)
    .start();

      Exception thrown:

      java.lang.ArrayIndexOutOfBoundsException: 0
	at java.lang.ProcessBuilder.start(ProcessBuilder.java:1014)
	at hudson.Proc$LocalProc.<init>(Proc.java:249)
	at hudson.Proc$LocalProc.<init>(Proc.java:218)
	at hudson.Launcher$LocalLauncher.launch(Launcher.java:930)
	at hudson.Launcher$ProcStarter.start(Launcher.java:450)
	at hudson.Launcher$RemoteLaunchCallable.call(Launcher.java:1299)
	at hudson.Launcher$RemoteLaunchCallable.call(Launcher.java:1260)
	at hudson.remoting.UserRequest.perform(UserRequest.java:205)
	at hudson.remoting.UserRequest.perform(UserRequest.java:52)
	at hudson.remoting.Request$2.run(Request.java:356)
	at hudson.remoting.InterceptingExecutorService$1.call(InterceptingExecutorService.java:72)
	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
	at java.lang.Thread.run(Thread.java:748)

      This exception is odd, and difficult to understand. In my understanding, the cause of the error (invalid command) should be more clear, and ideally, validated sooner.

            Unassigned Unassigned
            ealvarez Esther Álvarez Feijoo
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              Created:
              Updated: