java NullPointerException在尝试使用groovy脚本运行程序在JIRA中删除时
我是groovy script runner的新手,我一直在尝试删除JIRA中的一个字段,但我总是得到NullPointerException
我确实理解NullPointerMeans和我在网上和atlassian上读过多篇帖子,但没有任何帮助
对于我如何做到这一点,任何想法/帮助都将不胜感激
import com.atlassian.jira.issue.Issue
import com.atlassian.jira.issue.MutableIssue
import com.atlassian.jira.issue.IssueManager
import com.atlassian.jira.ComponentManager
import com.atlassian.jira.issue.CustomFieldManager
import com.atlassian.jira.component.ComponentAccessor
import com.atlassian.jira.issue.fields.CustomField
import org.apache.log4j.Logger;
import org.apache.log4j.Level;
CustomFieldManager customFieldManager = ComponentAccessor.getCustomFieldManager();
CustomField customField_toDelete = customFieldManager.getCustomFieldObject("12345")
customFieldManager.removeCustomField(customField_toDelete);
Stacktrace
java.lang.NullPointerException
at com.atlassian.jira.issue.managers.DefaultCustomFieldManager.removeCustomField(DefaultCustomFieldManager.java:490)
at com.atlassian.jira.issue.CustomFieldManager$removeCustomField$7.call(Unknown Source)
at Script2441.run(Script2441.groovy:20)
# 1 楼答案
根据JIRA documentation
如果JIRA中没有标识符为“12345”的customer字段,则返回null,这是为什么
抛出一个空指针(因为customField_toDelete为空)
如果removeCustomField方法是@Nullable(即使用Nullable注释进行注释),则可以将null传递给该方法,但由于它没有使用该方法进行注释,因此会引发异常