4.x: Mongo Database example - Some endpoints do not work

[tvallin]

Environment Details

• Helidon Version: 4.x
• Helidon SE or Helidon MP
• JDK version: 21
• OS:
• Docker version (if applicable):

---

Problem Description

Exception thrown when exercising the application.

Steps to reproduce

cd examples/dbclient/mongodb
mvn clean install
docker run --rm --name mongo -p 27017:27017 mongo
java -jar target/helidon-examples-dbclient-mongodb.jar
curl -i -X PUT -H 'Content-type: application/json' -d '{"name":"Squirtle","type":"water"}' http://localhost:8079/db

Stacktrace:

io.helidon.http.RequestException: Index 5 out of bounds for length 5
	at io.helidon.http.RequestException$Builder.build(RequestException.java:139)
	at io.helidon.webserver.http.ErrorHandlers.unhandledError(ErrorHandlers.java:202)
	at io.helidon.webserver.http.ErrorHandlers.lambda$handleError$1(ErrorHandlers.java:182)
	at java.base/java.util.Optional.ifPresentOrElse(Optional.java:198)
	at io.helidon.webserver.http.ErrorHandlers.handleError(ErrorHandlers.java:181)
	at io.helidon.webserver.http.ErrorHandlers.runWithErrorHandling(ErrorHandlers.java:118)
	at io.helidon.webserver.http.Filters$FilterChainImpl.proceed(Filters.java:121)
	at io.helidon.webserver.observe.metrics.MetricsFeature.lambda$configureVendorMetrics$2(MetricsFeature.java:90)
	at io.helidon.webserver.http.Filters$FilterChainImpl.proceed(Filters.java:119)
	at io.helidon.common.context.Contexts.runInContext(Contexts.java:117)
	at io.helidon.webserver.observe.tracing.TracingObserver$TracingFilter.filter(TracingObserver.java:233)
	at io.helidon.webserver.http.Filters$FilterChainImpl.proceed(Filters.java:119)
	at io.helidon.webserver.http.Filters.executeFilters(Filters.java:87)
	at io.helidon.webserver.http.Filters.lambda$filter$0(Filters.java:83)
	at io.helidon.webserver.http.ErrorHandlers.runWithErrorHandling(ErrorHandlers.java:75)
	at io.helidon.webserver.http.Filters.filter(Filters.java:83)
	at io.helidon.webserver.http.HttpRouting.route(HttpRouting.java:109)
	at io.helidon.webserver.http1.Http1Connection.route(Http1Connection.java:414)
	at io.helidon.webserver.http1.Http1Connection.handle(Http1Connection.java:187)
	at io.helidon.webserver.ConnectionHandler.run(ConnectionHandler.java:165)
	at io.helidon.common.task.InterruptableTask.call(InterruptableTask.java:47)
	at io.helidon.webserver.ThreadPerTaskExecutor$ThreadBoundFuture.run(ThreadPerTaskExecutor.java:239)
	at java.base/java.lang.VirtualThread.run(VirtualThread.java:311)
Caused by: java.lang.ArrayIndexOutOfBoundsException: Index 5 out of bounds for length 5
	at io.helidon.dbclient.mongodb.StatementParsers$NamedParser.convert(StatementParsers.java:458)
	at io.helidon.dbclient.mongodb.MongoDbStatement.prepareStatement(MongoDbStatement.java:113)
	at io.helidon.dbclient.mongodb.MongoDbStatementDml.lambda$execute$2(MongoDbStatementDml.java:56)
	at io.helidon.dbclient.DbStatementBase.doExecute(DbStatementBase.java:97)
	at io.helidon.dbclient.mongodb.MongoDbStatementDml.execute(MongoDbStatementDml.java:55)
	at io.helidon.examples.dbclient.common.AbstractPokemonService.insertPokemon(AbstractPokemonService.java:93)
	at io.helidon.webserver.http.Handler.lambda$create$6(Handler.java:123)
	at io.helidon.webserver.http.HttpRouting$RoutingExecutor.doRoute(HttpRouting.java:668)
	at io.helidon.webserver.http.HttpRouting$RoutingExecutor.call(HttpRouting.java:627)
	at io.helidon.webserver.http.HttpRouting$RoutingExecutor.call(HttpRouting.java:605)
	at io.helidon.webserver.http.ErrorHandlers.runWithErrorHandling(ErrorHandlers.java:75)