本文整理了Java中com.atlassian.jira.util.json.JSONObject.isNull()方法的一些代码示例，展示了JSONObject.isNull()的具体用法。这些代码示例主要来源于Github/Stackoverflow/Maven等平台，是从一些精选项目中提取出来的代码，具有较强的参考意义，能在一定程度帮忙到你。JSONObject.isNull()方法的具体详情如下：
包路径：com.atlassian.jira.util.json.JSONObject
类名称：JSONObject
方法名：isNull

JSONObject.isNull介绍

[英]Determine if the value associated with the key is null or if there is no value.
[中]确定与键关联的值是null还是没有值。

代码示例

代码示例来源：origin: com.marvelution.jira.plugins/jira-jenkins-plugin

/**
 * Helper method to get the optional {@link String} element of the given {@link JSONObject} given by the key given
 *
 * @param json the {@link JSONObject} to get the {@link String} value from
 * @param key  the key to get he corresponding value of
 * @return the {@link String} value, maybe {@code null}
 */
private String optJsonString(JSONObject json, String key) {
  if (json.has(key) && !json.isNull(key)) {
    return json.optString(key);
  } else {
    return null;
  }
}

代码示例来源：origin: com.marvelution.jira.plugins/jira-jenkins-plugin

String commitId = String.valueOf(index);
for (String idField : COMMIT_ID_FIELDS) {
  if (item.has(idField) && !item.isNull(idField)) {
    commitId = item.getString(idField);
    break;

代码示例来源：origin: com.atlassian.jira/jira-issue-link-remote-jira-plugin

builder.resolved(!fields.isNull("resolution"));
break;