[JIRA] [extensible-choice-parameter-plugin] (JENKINS-27258) Blank value is selected by default in global choices

Tue, 17 Mar 2015 14:52:00 -0700

Could not reproduce in my environment. Tested with Jenkins 1.580.1 and Firefox 36.0.1.

  1. Install extensible-choice-parameter-1.2.2.
  2. Go to Manage Jenkins > Configure System.
  3. Define a globel choice parameter "GLOBAL_PARAM1" with its choices 
    value1
(blank line)
value2
(blank line)
value3
  4. Create a new free style project "test"
    • Check "This build is parameterized" and add an "Extensible Choice":
      • Name: PARAM1
      • Choice Provider: Global Choice Parameter
        • Name: GLOBAL_PARAM1
        • Default Choice: value2
    • Add "Execute shell" 
      echo ${PARAM1}
  5. Click "Build with Parameters"
    • Result: "value2" is selected for "PARAM1"
  6. Run the build
    • Result: "value2" is output in its build log.
Change By: ikedam (17/Mar/15 9:51 PM)
Summary: The global choice parameter Blank value  is  keeping empty lines  selected by default in global choices
Description: {quote}
So, when you have a blank line in the choice parameter, then even with a default value in the job configuration, this (or one) blank line will be selected by default. In my use-case, the blank line was created by the last \n of the configuration.
{quote}

----

 Currently, the plugin is keeping all empty lines from the textarea. I do understand from the unit-test class {{TextareaStringListUtilityTest}} that it is a desired behavior but it is breaking the build even when the "empty line" is just the end of the choices.

I created the [PR-10|https://github.com/jenkinsci/extensible-choice-parameter-plugin/pull/10] to change this behavior.
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