java - Error at SolrLoggerUsageEventListener that stop registering statistics -

java - Error at SolrLoggerUsageEventListener that stop registering statistics -

i have dspace 4.2 instalation throw next exception. same code work @ pc , other server. problem avoid statistical info registered.

has had similar problem?

error org.dspace.statistics.solrloggerusageeventlistener @ java.lang.nullpointerexception @ org.dspace.statistics.util.spiderdetector.isspider(spiderdetector.java:208) @ org.dspace.statistics.util.spiderdetector.isspider(spiderdetector.java:258) @ org.dspace.statistics.solrlogger.getcommonsolrdoc(solrlogger.java:287) @ org.dspace.statistics.solrlogger.postsearch(solrlogger.java:469) @ org.dspace.statistics.solrloggerusageeventlistener.receiveevent(solrloggerusageeventlistener.java:51) @ org.dspace.services.events.systemeventservice.firelocalevent(systemeventservice.java:144) @ org.dspace.services.events.systemeventservice.fireevent(systemeventservice.java:86) @ org.dspace.app.xmlui.cocoon.searchloggeraction.act(searchloggeraction.java:65) @ org.apache.cocoon.sitemap.impl.defaultexecutor.invokeaction(defaultexecutor.java:55) @ org.apache.cocoon.components.treeprocessor.sitemap.acttypenode.invoke(acttypenode.java:105) @ org.apache.cocoon.components.treeprocessor.abstractparentprocessingnode.invokenodes(abstractparentprocessingnode.java:55) @ org.apache.cocoon.components.treeprocessor.sitemap.matchnode.invoke(matchnode.java:87) @ org.apache.cocoon.components.treeprocessor.abstractparentprocessingnode.invokenodes(abstractparentprocessingnode.java:78) @

you experiencing next bug: https://jira.duraspace.org/browse/ds-2355

java dspace