Jeppe Fihl-Pearson created AVRO-4164: ----------------------------------------
Summary: NPE when specifying nullable array in IDL Key: AVRO-4164 URL: https://issues.apache.org/jira/browse/AVRO-4164 Project: Apache Avro Issue Type: Bug Affects Versions: 1.12.0 Reporter: Jeppe Fihl-Pearson When specifying a schema with a nullable array, a NPE is raised when trying to convert the AVDL file to AVSC. Minimal reproduction case: {{schema Test;}} {{record Test {}} {{ array<int>? field = null;}} {{}}} When attempting to convert it to AVSC the following exception is emitted: {quote}Exception in thread "main" org.apache.avro.SchemaParseException: java.lang.NullPointerException: Cannot read field "word" because "ctx" is null at org.apache.avro.idl.IdlReader.parse(IdlReader.java:220) at org.apache.avro.idl.IdlReader.parse(IdlReader.java:183) at org.apache.avro.idl.IdlReader.parse(IdlReader.java:168) at org.apache.avro.tool.IdlTool.run(IdlTool.java:70) at org.apache.avro.tool.Main.run(Main.java:67) at org.apache.avro.tool.Main.main(Main.java:56) Caused by: java.lang.NullPointerException: Cannot read field "word" because "ctx" is null at org.apache.avro.idl.IdlReader$IdlParserListener.identifier(IdlReader.java:929) at org.apache.avro.idl.IdlReader$IdlParserListener.exitVariableDeclaration(IdlReader.java:616) at org.apache.avro.idl.IdlParser$VariableDeclarationContext.exitRule(IdlParser.java:1477) at org.antlr.v4.runtime.Parser.triggerExitRuleEvent(Parser.java:410) at org.antlr.v4.runtime.Parser.exitRule(Parser.java:642) at org.apache.avro.idl.IdlParser.idlFile(IdlParser.java:289) at org.apache.avro.idl.IdlReader.parse(IdlReader.java:216) ... 5 more {quote} This is when testing with the latest Avro Tools snapshot version: {{{}avro-tools-1.13.0-20250627.213521-100.jar{}}}. -- This message was sent by Atlassian Jira (v8.20.10#820010)