java - SolrLoggerUsageEventListener 发生错误，停止注册统计信息

Question

我安装的 Dspace 4.2 抛出以下异常。相同的代码在我的电脑和其他服务器上工作。此问题避免了统计数据被注册。

有人遇到过类似的问题吗？

  ERROR org.dspace.statistics.SolrLoggerUsageEventListener @
java.lang.NullPointerException
         at 
org.dspace.statistics.util.SpiderDetector.isSpider(SpiderDetector.java:208)
         at 
org.dspace.statistics.util.SpiderDetector.isSpider(SpiderDetector.java:258)
         at 
org.dspace.statistics.SolrLogger.getCommonSolrDoc(SolrLogger.java:287)
         at org.dspace.statistics.SolrLogger.postSearch(SolrLogger.java:469)
         at 
org.dspace.statistics.SolrLoggerUsageEventListener.receiveEvent(SolrLoggerUsageEventListener.java:51)
         at 
org.dspace.services.events.SystemEventService.fireLocalEvent(SystemEventService.java:144)
         at 
org.dspace.services.events.SystemEventService.fireEvent(SystemEventService.java:86)
         at 
org.dspace.app.xmlui.cocoon.SearchLoggerAction.act(SearchLoggerAction.java:65)
         at 
org.apache.cocoon.sitemap.impl.DefaultExecutor.invokeAction(DefaultExecutor.java:55)
         at 
org.apache.cocoon.components.treeprocessor.sitemap.ActTypeNode.invoke(ActTypeNode.java:105)
         at 
org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invokeNodes(AbstractParentProcessingNode.java:55)
         at 
org.apache.cocoon.components.treeprocessor.sitemap.MatchNode.invoke(MatchNode.java:87)
         at 
org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invokeNodes(AbstractParentProcessingNode.java:78)
         at 

Answer 1

您遇到以下错误: https://jira.duraspace.org/browse/DS-2355