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Server error while parsing ESQL query #119025

@lkts

Description

@lkts

Elasticsearch Version

9.0

Installed Plugins

No response

Java Version

bundled

OS Version

all

Problem Description

The following error was observed. Unfortunately the query that leads to this is not known (the author was experimenting and does not remember what it was), it is possible that it is an invalid query. In that case this error should not be a server error but a client error.

java.util.EmptyStackException
at org.antlr.v4.runtime.Lexer.popMode(Lexer.java:192)
at org.antlr.v4.runtime.atn.LexerPopModeAction.execute(LexerPopModeAction.java:58)
at org.antlr.v4.runtime.atn.LexerActionExecutor.execute(LexerActionExecutor.java:168)
at org.antlr.v4.runtime.atn.LexerATNSimulator.accept(LexerATNSimulator.java:366)
at org.antlr.v4.runtime.atn.LexerATNSimulator.failOrAccept(LexerATNSimulator.java:299)
at org.antlr.v4.runtime.atn.LexerATNSimulator.execATN(LexerATNSimulator.java:230)
at org.antlr.v4.runtime.atn.LexerATNSimulator.match(LexerATNSimulator.java:114)
at org.antlr.v4.runtime.Lexer.nextToken(Lexer.java:141)
at org.elasticsearch.xpack.esql.parser.EsqlParser$ParametrizedTokenSource.nextToken(EsqlParser.java:169)
at org.antlr.v4.runtime.BufferedTokenStream.fetch(BufferedTokenStream.java:169)
at org.antlr.v4.runtime.BufferedTokenStream.sync(BufferedTokenStream.java:152)
at org.antlr.v4.runtime.BufferedTokenStream.consume(BufferedTokenStream.java:136)
at org.antlr.v4.runtime.atn.ParserATNSimulator.execATN(ParserATNSimulator.java:515)
at org.antlr.v4.runtime.atn.ParserATNSimulator.adaptivePredict(ParserATNSimulator.java:371)
at org.elasticsearch.xpack.esql.parser.EsqlBaseParser.booleanExpression(EsqlBaseParser.java:912)
at org.elasticsearch.xpack.esql.parser.EsqlBaseParser.whereCommand(EsqlBaseParser.java:695)
at org.elasticsearch.xpack.esql.parser.EsqlBaseParser.processingCommand(EsqlBaseParser.java:547)
at org.elasticsearch.xpack.esql.parser.EsqlBaseParser.query(EsqlBaseParser.java:347)
at org.elasticsearch.xpack.esql.parser.EsqlBaseParser.singleStatement(EsqlBaseParser.java:230)
at org.elasticsearch.xpack.esql.parser.EsqlParser.invokeParser(EsqlParser.java:100)
at org.elasticsearch.xpack.esql.parser.EsqlParser.createStatement(EsqlParser.java:63)
at org.elasticsearch.xpack.esql.session.EsqlSession.parse(EsqlSession.java:269)
at org.elasticsearch.xpack.esql.session.EsqlSession.execute(EsqlSession.java:154)
at org.elasticsearch.xpack.esql.execution.PlanExecutor.esql(PlanExecutor.java:80)
at org.elasticsearch.xpack.esql.plugin.TransportEsqlQueryAction.innerExecute(TransportEsqlQueryAction.java:186)
at org.elasticsearch.xpack.esql.plugin.TransportEsqlQueryAction.lambda$execute$1(TransportEsqlQueryAction.java:156)
at org.elasticsearch.server@9.0.0/org.elasticsearch.action.ActionListener.run(ActionListener.java:452)
at org.elasticsearch.xpack.esql.plugin.TransportEsqlQueryAction.execute(TransportEsqlQueryAction.java:156)
at org.elasticsearch.xpack.esql.plugin.TransportEsqlQueryAction.execute(TransportEsqlQueryAction.java:56)
at org.elasticsearch.xpack.esql.core.async.AsyncTaskManagementService.asyncExecute(AsyncTaskManagementService.java:188)
at org.elasticsearch.xpack.esql.plugin.TransportEsqlQueryAction.doExecuteForked(TransportEsqlQueryAction.java:140)
at org.elasticsearch.xpack.esql.plugin.TransportEsqlQueryAction.lambda$doExecute$0(TransportEsqlQueryAction.java:132)
at org.elasticsearch.server@9.0.0/org.elasticsearch.action.ActionRunnable$4.doRun(ActionRunnable.java:101)
at org.elasticsearch.server@9.0.0/org.elasticsearch.common.util.concurrent.AbstractRunnable.run(AbstractRunnable.java:27)
at org.elasticsearch.server@9.0.0/org.elasticsearch.common.util.concurrent.TimedRunnable.doRun(TimedRunnable.java:34)
at org.elasticsearch.server@9.0.0/org.elasticsearch.common.util.concurrent.ThreadContext$ContextPreservingAbstractRunnable.doRun(ThreadContext.java:1023)
at org.elasticsearch.server@9.0.0/org.elasticsearch.common.util.concurrent.AbstractRunnable.run(AbstractRunnable.java:27)
at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1144)
at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:642)
at java.base/java.lang.Thread.run(Thread.java:1575)

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