Pierre Villard created NIFI-7930: ------------------------------------ Summary: QueryRecord fails with RPATH on arrays Key: NIFI-7930 URL: https://issues.apache.org/jira/browse/NIFI-7930 Project: Apache NiFi Issue Type: Task Components: Extensions Reporter: Pierre Villard
When executing QueryRecord using a query with RPATH on arrays like the one provided in the additional details of the processor's configuration, it fails with the following stack trace: {noformat} 2793 [pool-1-thread-1] ERROR org.apache.nifi.processors.standard.QueryRecord - QueryRecord[id=56b8b985-0609-4e52-9124-1bcbbbb8afab] Unable to query FlowFile[0,fields-value-name.json,465B] due to java.lang.ClassCastException: [Ljava.lang.Object; cannot be cast to java.util.List: java.lang.ClassCastException: [Ljava.lang.Object; cannot be cast to java.util.List java.lang.ClassCastException: [Ljava.lang.Object; cannot be cast to java.util.List at Baz$1$1.moveNext(Unknown Source) at org.apache.calcite.linq4j.Linq4j$EnumeratorIterator.<init>(Linq4j.java:675) at org.apache.calcite.linq4j.Linq4j.enumeratorIterator(Linq4j.java:95) at org.apache.calcite.linq4j.AbstractEnumerable.iterator(AbstractEnumerable.java:33) at org.apache.calcite.avatica.MetaImpl.createCursor(MetaImpl.java:82) at org.apache.calcite.avatica.AvaticaResultSet.execute(AvaticaResultSet.java:184) at org.apache.calcite.jdbc.CalciteResultSet.execute(CalciteResultSet.java:64) at org.apache.calcite.jdbc.CalciteResultSet.execute(CalciteResultSet.java:43) at org.apache.calcite.avatica.AvaticaConnection.executeQueryInternal(AvaticaConnection.java:573) at org.apache.calcite.avatica.AvaticaPreparedStatement.executeQuery(AvaticaPreparedStatement.java:137) at org.apache.nifi.processors.standard.QueryRecord.query(QueryRecord.java:465) at org.apache.nifi.processors.standard.QueryRecord.onTrigger(QueryRecord.java:320) at org.apache.nifi.processor.AbstractProcessor.onTrigger(AbstractProcessor.java:27) at org.apache.nifi.util.StandardProcessorTestRunner$RunProcessor.call(StandardProcessorTestRunner.java:270) at org.apache.nifi.util.StandardProcessorTestRunner$RunProcessor.call(StandardProcessorTestRunner.java:264) at java.util.concurrent.FutureTask.run(FutureTask.java:266) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) at java.lang.Thread.run(Thread.java:748) {noformat} A unit test reproducing the issue is available here: [https://github.com/pvillard31/nifi/commit/1016b4a540fab22bcad119e7ffe2363b99c07a0c] I didn't get the time/opportunity to work on a fix for this. -- This message was sent by Atlassian Jira (v8.3.4#803005)