Hi , I am employing Java Web Project to incorporate Delta Import Handling functionality of Solr with my Collection data objects. I could do full-import of data to the configured collection via Solr UI, but let the Java Web App do a routine Delta-Import functionality instructed via Automated Java Thread, so as to make Collection data availability to downstream apps to function in an automated manner. But when I hit one of the collection by - *http://<1.2.3.4>:8983/solr/OBJECT/dataimport?command=delta-import&clean=false&commit=true&start=0&rows=100000*
But it now I am hitting this error - 2021-12-14 10:53:03.969 ERROR (qtp1546693040-33) [ x:customer] o.a.s.s.HttpSolrCall null:java.lang.ClassCastException: java.util.Arrays$ArrayList cannot be cast to java.lang.String at org.apache.solr.handler.dataimport.RequestInfo.<init>(RequestInfo.java:65) at org.apache.solr.handler.dataimport.DataImportHandler.handleRequestBody(DataImportHandler.java:135) at org.apache.solr.handler.RequestHandlerBase.handleRequest(RequestHandlerBase.java:211) at org.apache.solr.core.SolrCore.execute(SolrCore.java:2596) at org.apache.solr.servlet.HttpSolrCall.execute(HttpSolrCall.java:799) at org.apache.solr.servlet.HttpSolrCall.call(HttpSolrCall.java:578) at org.apache.solr.servlet.SolrDispatchFilter.doFilter(SolrDispatchFilter.java:419) at org.apache.solr.servlet.SolrDispatchFilter.doFilter(SolrDispatchFilter.java:351) at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1602) at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:540) at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:146) at org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:548) at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:132) at org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:257) at org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:1711) at org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:255) at org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1347) at org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:203) at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:480) at org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:1678) at org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:201) at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1249) at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:144) at org.eclipse.jetty.server.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:220) at org.eclipse.jetty.server.handler.HandlerCollection.handle(HandlerCollection.java:152) at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:132) at org.eclipse.jetty.rewrite.handler.RewriteHandler.handle(RewriteHandler.java:335) at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:132) at org.eclipse.jetty.server.Server.handle(Server.java:505) at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:370) at org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:267) at org.eclipse.jetty.io.AbstractConnection$ReadCallback.succeeded(AbstractConnection.java:305) at org.eclipse.jetty.io.FillInterest.fillable(FillInterest.java:103) at org.eclipse.jetty.io.ChannelEndPoint$2.run(ChannelEndPoint.java:117) at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.runTask(EatWhatYouKill.java:333) at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.doProduce(EatWhatYouKill.java:310) at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.tryProduce(EatWhatYouKill.java:168) at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.produce(EatWhatYouKill.java:132) at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:781) at org.eclipse.jetty.util.thread.QueuedThreadPool$Runner.run(QueuedThreadPool.java:917) at java.lang.Thread.run(Thread.java:748) Kindly share your thoughts/exploration on the above error. Is it an FATAL error or kind of any WARNING to neglect upon. Thanks, GPS
