hi friends,
While browsing through the logs of solr,i noticed a few null pointer
exceptions, i am concerned what could be the reason?


 ERROR org.apache.solr.core.SolrCore  รข EURO " java.lang.NullPointerException
        at
org.apache.solr.handler.admin.ShowFileRequestHandler.showFromFileSystem(ShowFileRequestHandler.java:212)
        at
org.apache.solr.handler.admin.ShowFileRequestHandler.handleRequestBody(ShowFileRequestHandler.java:122)
        at org.apache.solr.core.SolrCore.execute(SolrCore.java:1820)
        at
org.apache.solr.servlet.SolrDispatchFilter.execute(SolrDispatchFilter.java:656)
        at
org.apache.solr.servlet.SolrDispatchFilter.doFilter(SolrDispatchFilter.java:359)
        at
org.apache.solr.servlet.SolrDispatchFilter.doFilter(SolrDispatchFilter.java:155)
        at
org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1307)
        at
org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:453)
        at
org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:137)
        at
org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:560)
        at
org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:231)
        at
org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1072)
        at
org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:382)
        at
org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:193)
        at
org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1006)
        at
org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:135)
        at
org.eclipse.jetty.server.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:255)
        at
org.eclipse.jetty.server.handler.HandlerCollection.handle(HandlerCollection.java:154)
        at
org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:116)
        at org.eclipse.jetty.server.Server.handle(Server.java:365)
        at
org.eclipse.jetty.server.AbstractHttpConnection.handleRequest(AbstractHttpConnection.java:485)
        at
org.eclipse.jetty.server.BlockingHttpConnection.handleRequest(BlockingHttpConnection.java:53)
        at
org.eclipse.jetty.server.AbstractHttpConnection.headerComplete(AbstractHttpConnection.java:926)
        at
org.eclipse.jetty.server.AbstractHttpConnection$RequestHandler.headerComplete(AbstractHttpConnection.java:988)
        at org.eclipse.jetty.http.HttpParser.parseNext(HttpParser.java:635)
        at
org.eclipse.jetty.http.HttpParser.parseAvailable(HttpParser.java:235)
        at
org.eclipse.jetty.server.BlockingHttpConnection.handle(BlockingHttpConnection.java:72)
        at
org.eclipse.jetty.server.bio.SocketConnector$ConnectorEndPoint.run(SocketConnector.java:264)
        at
org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:608)
        at
org.eclipse.jetty.util.thread.QueuedThreadPool$3.run(QueuedThreadPool.java:543)
        at java.lang.Thread.run(Unknown Source)

Please help,

-- 
Thanks and kind Regards,
Abhishek jain
+91 9971376767

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