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Jacques Nadeau commented on DRILL-3978: --------------------------------------- Looks like a problem with the shading in the jdbc-all module. This class is used when returning maps to the user. > Exceptions when using JDBC driver > --------------------------------- > > Key: DRILL-3978 > URL: https://issues.apache.org/jira/browse/DRILL-3978 > Project: Apache Drill > Issue Type: Bug > Components: Client - JDBC > Affects Versions: 1.2.0 > Reporter: Tomer Shiran > > I was using the JDBC driver and 0xDBE as the client. The query was: > {code} > SELECT * FROM dfs.yelp.`business.json` > {code} > Some of the columns resulted in a Java exception string instead of the actual > value. For example, in the hours column: > <failed to load> > java.lang.NoClassDefFoundError: Could not initialize class > oadd.org.apache.drill.exec.util.JsonStringHashMap > at > oadd.org.apache.drill.exec.vector.complex.MapVector$Accessor.getObject(MapVector.java:310) > at > oadd.org.apache.drill.exec.vector.accessor.GenericAccessor.getObject(GenericAccessor.java:44) > at > oadd.org.apache.drill.exec.vector.accessor.BoundCheckingAccessor.getObject(BoundCheckingAccessor.java:148) > at > org.apache.drill.jdbc.impl.TypeConvertingSqlAccessor.getObject(TypeConvertingSqlAccessor.java:795) > at > org.apache.drill.jdbc.impl.AvaticaDrillSqlAccessor.getObject(AvaticaDrillSqlAccessor.java:179) > at > oadd.net.hydromatic.avatica.AvaticaResultSet.getObject(AvaticaResultSet.java:351) > at > org.apache.drill.jdbc.impl.DrillResultSetImpl.getObject(DrillResultSetImpl.java:401) > at > com.intellij.database.remote.jdbc.impl.RemoteResultSetImpl.getCurrentRow(RemoteResultSetImpl.java:1253) > at > com.intellij.database.remote.jdbc.impl.RemoteResultSetImpl.getObjects(RemoteResultSetImpl.java:1211) > at sun.reflect.GeneratedMethodAccessor21.invoke(Unknown Source) > at > sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) > at java.lang.reflect.Method.invoke(Method.java:497) > at sun.rmi.server.UnicastServerRef.dispatch(UnicastServerRef.java:323) > at sun.rmi.transport.Transport$1.run(Transport.java:200) > at sun.rmi.transport.Transport$1.run(Transport.java:197) > at java.security.AccessController.doPrivileged(Native Method) > at sun.rmi.transport.Transport.serviceCall(Transport.java:196) > at > sun.rmi.transport.tcp.TCPTransport.handleMessages(TCPTransport.java:568) > at > sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run0(TCPTransport.java:826) > at > sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.lambda$run$254(TCPTransport.java:683) > at > sun.rmi.transport.tcp.TCPTransport$ConnectionHandler$$Lambda$2/1667444585.run(Unknown > Source) > at java.security.AccessController.doPrivileged(Native Method) > at > sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run(TCPTransport.java:682) > at > java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) > at > java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) > at java.lang.Thread.run(Thread.java:745) -- This message was sent by Atlassian JIRA (v6.3.4#6332)