How to use

replace

method

in

hudson.util.DescribableList

public void setBuildChooser(BuildChooser buildChooser) throws IOException {
  if (buildChooser.getClass()==DefaultBuildChooser.class) {
    getExtensions().remove(BuildChooserSetting.class);
  } else {
    getExtensions().replace(new BuildChooserSetting(buildChooser));
  }
}

public void set() throws IOException {
  List<EnvironmentVariablesNodeProperty.Entry> entries = new ArrayList<>(env.size());
  for (Map.Entry<String, String> entry : env.entrySet()) {
    entries.add(new EnvironmentVariablesNodeProperty.Entry(entry.getKey(), entry.getValue()));
  }
  EnvironmentVariablesNodeProperty newProperty = new EnvironmentVariablesNodeProperty(entries);
  DescribableList<NodeProperty<?>, NodePropertyDescriptor> nodeProperties = agent.getNodeProperties();
  nodeProperties.replace(newProperty);
}

  response.getWriter().write("Successfully added a new JIRA Build Notifier");
} else if (!currentNotifier.postUrl.equals(postUrl)) {
  publishers.replace(currentNotifier, newNotifier);
  response.getWriter().write("Successfully replaced the existing JIRA Build Notifier");
} else {

pl.replace(new BuildTrigger(newChildProjects,
  existing==null?Result.SUCCESS:existing.getThreshold()));

pl.replace(new BuildTrigger(newChildProjects,
  existing==null?Result.SUCCESS:existing.getThreshold()));

  continue;   // no need to touch
pl.replace(new BuildTrigger(newChildProjects,
  existing == null ? Result.SUCCESS : existing.getThreshold()));

  continue;   // no need to touch
pl.replace(new BuildTrigger(newChildProjects,
    existing == null ? Result.SUCCESS : existing.getThreshold()));

getExtensions().replace(new PreBuildMerge(new UserMergeOptions(mergeOptions)));
mergeOptions = null;

public MercurialInstallation createInstallation(JenkinsRule r, Version v, boolean debug, boolean useCaches, boolean useSharing, String config, Slave... slaves) throws IOException {
  MercurialInstallation.DescriptorImpl desc = r.jenkins.getDescriptorByType(MercurialInstallation.DescriptorImpl.class);
  ToolLocationNodeProperty.ToolLocation location = new ToolLocationNodeProperty.ToolLocation(desc, v.name(), "/opt/mercurial-" + v.exactVersion);
  MercurialInstallation inst = new MercurialInstallation(v.name(), "", "INSTALLATION/hg", debug, useCaches, useSharing, config, null);
  desc.setInstallations((MercurialInstallation[]) ArrayUtils.add(desc.getInstallations(), inst)); // TODO stop calling this here, should be responsibility of caller
  for (Slave slave : slaves) {
    DescribableList<NodeProperty<?>, NodePropertyDescriptor> props = slave.getNodeProperties();
    ToolLocationNodeProperty prop = props.get(ToolLocationNodeProperty.class);
    List<ToolLocationNodeProperty.ToolLocation> locations;
    if (prop == null) {
      locations = Collections.singletonList(location);
    } else {
      locations = new ArrayList<>(prop.getLocations());
      locations.add(location);
    }
    props.replace(new ToolLocationNodeProperty(locations));
  }
  return inst;
}

assertEquals(1, releaseBuild.get().getNumber());
assertEquals(2, release.getNextBuildNumber());
top.getProperties().replace(new NoTriggerOrganizationFolderProperty("(?!master$).*"));
round3();
WorkflowMultiBranchProjectTest.showIndexing(p);