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[FIXED JENKINS-37590] Return a null property if no parameters
At least part of the impetus for this issue was dealt with a while
back by a revert of PR #2444, but this gives us a better solution
anyway by guaranteeing we have a null property rather than one without
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abayer committed Jan 20, 2017
1 parent 712ff4b commit 8a8c4c20eb41204cd0535cc365a59ec6bad824ae
Showing with 9 additions and 0 deletions.
  1. +9 −0 core/src/main/java/hudson/model/
@@ -221,6 +221,15 @@ public ParameterDefinition getParameterDefinition(String name) {
public static class DescriptorImpl extends OptionalJobPropertyDescriptor {
public ParametersDefinitionProperty newInstance(StaplerRequest req, JSONObject formData) throws FormException {
ParametersDefinitionProperty prop = (ParametersDefinitionProperty)super.newInstance(req, formData);
if (prop != null && prop.parameterDefinitions.isEmpty()) {
return null;
return prop;

public boolean isApplicable(Class<? extends Job> jobType) {
return ParameterizedJobMixIn.ParameterizedJob.class.isAssignableFrom(jobType);

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