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vert.x

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Welcome to the vert.x google group!

Vert.x - a tool-kit for building reactive applications on the JVM

Please use this group for any user or development vert.x topics.

For development discussions please use the development group

For commits please see the commits list

For any private enquiries about Vert.x please send an email to the enquiries list

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jul...@julienviet.com, … Himanshu Gupta251

4/3/25

What would you like to see in Vert.x

May be a CDI library specially for vert.x ... All the ones out there are good but a vert.x tailored

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What would you like to see in Vert.x

May be a CDI library specially for vert.x ... All the ones out there are good but a vert.x tailored

4/3/25

Mar 31

Use Exposed with Vert.x SQL Client

Hi everyone! I wanted to share a library I've been working on: exposed-vertx-sql-client. As the

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Use Exposed with Vert.x SQL Client

Hi everyone! I wanted to share a library I've been working on: exposed-vertx-sql-client. As the

Mar 31

Julien Viet, 이강수 (kipid)2

Mar 26

Eclipse Vert.x 5.0.9 / 4.5.26

Thank you for the continuous updates. I am using Vert.x very well. Until now, I satisfy the

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Eclipse Vert.x 5.0.9 / 4.5.26

Thank you for the continuous updates. I am using Vert.x very well. Until now, I satisfy the

Mar 26

Mar 26

Eclipse Vert.x 5.0.10

Actually read here regression found in Netty 4.2.11.Final On Thu, Mar 26, 2026 at 6:25 PM Julien Viet

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Eclipse Vert.x 5.0.10

Actually read here regression found in Netty 4.2.11.Final On Thu, Mar 26, 2026 at 6:25 PM Julien Viet

Mar 26

Mike Wiesenberg, … Paulo Lopes3

Mar 24

LoggerHandlerImpl elapsed time

Hi, In the combined format it "makes sense" because it is a well defined format used by

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LoggerHandlerImpl elapsed time

Hi, In the combined format it "makes sense" because it is a well defined format used by

Mar 24

Ronald van Raaphorst

Mar 19

OpenAPI RouteBuilder error handling

Hi all, I'm using the Web OpenAPI RouteBuilder to add routes based on an OpenAPI specification (

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OpenAPI RouteBuilder error handling

Hi all, I'm using the Web OpenAPI RouteBuilder to add routes based on an OpenAPI specification (

Mar 19

Julien Viet, 이강수 (kipid)2

Mar 1

5.0.8 / 4.5.25 releases

Thank you for the continuous updates. On Tuesday, February 17, 2026 at 5:52:21 PM UTC+9 Julien Viet

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5.0.8 / 4.5.25 releases

Thank you for the continuous updates. On Tuesday, February 17, 2026 at 5:52:21 PM UTC+9 Julien Viet

Mar 1

Jan 15

5.0.7 / 4.5.24 releases

Hi everyone, Eclipse Vert.x 5.0.7 / 4.5.24 have been released, fixing bugs as well as https://www.cve

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5.0.7 / 4.5.24 releases

Hi everyone, Eclipse Vert.x 5.0.7 / 4.5.24 have been released, fixing bugs as well as https://www.cve

Jan 15

12/16/25

Eclipse Vert.x 5.0.6 / 4.5.23 releases

Hi community, Eclipse Vert.x 5.0.6 / 4.5.23 have been released, fixing bugs as well as https://www.

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Eclipse Vert.x 5.0.6 / 4.5.23 releases

Hi community, Eclipse Vert.x 5.0.6 / 4.5.23 have been released, fixing bugs as well as https://www.

12/16/25

12/11/25

Does it make sense to run multiple Kafka Producer in a vert.x application

Hi, I am running a cluster vert.x web application running on 8 vCPU and 16 GB RAM VM. The application

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Does it make sense to run multiple Kafka Producer in a vert.x application

Hi, I am running a cluster vert.x web application running on 8 vCPU and 16 GB RAM VM. The application

12/11/25

Jody, … Thomas SEGISMONT3

11/27/25

Hazelcast removes CP subsystem from community edition

Yes indeed. Vert.x Hazelcast no longer uses the CP subsystem. However, Hazelcast offers an enterprise

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Hazelcast removes CP subsystem from community edition

Yes indeed. Vert.x Hazelcast no longer uses the CP subsystem. However, Hazelcast offers an enterprise

11/27/25

10/22/25

Eclipse Vert.x 5.0.5 and 4.5.22 released

Hi, Eclipse Vert.x 5.0.5 and 4.5.22 have been released providing fixes for CVE-2025-11965 and CVE-

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Eclipse Vert.x 5.0.5 and 4.5.22 released

Hi, Eclipse Vert.x 5.0.5 and 4.5.22 have been released providing fixes for CVE-2025-11965 and CVE-

10/22/25

timm...@hotmail.com, Thomas SEGISMONT3

10/2/25

vertx-web-sstore-caffeine NoSuchMethodError issue

Thanks Thomas, my bad, I missed older version being pulled in from else where On Thursday, 2 October

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vertx-web-sstore-caffeine NoSuchMethodError issue

Thanks Thomas, my bad, I missed older version being pulled in from else where On Thursday, 2 October

10/2/25

Satyabrata Mishra, Thomas SEGISMONT5

9/13/25

DNS resolution failing with java.net.UnknownHostException

Le sam. 13 sept. 2025 à 19:19, Satyabrata Mishra <satya.m...@gmail.com> a écrit : Hello

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DNS resolution failing with java.net.UnknownHostException

Le sam. 13 sept. 2025 à 19:19, Satyabrata Mishra <satya.m...@gmail.com> a écrit : Hello

9/13/25

Aleksandar Pavlovic, Thomas SEGISMONT4

9/11/25

How to hot-reload with vert.x 5 VertxApplication launcher

Hi, In the version 2 of the Vert.x Maven plugin, there is some code for file changes monitoring

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How to hot-reload with vert.x 5 VertxApplication launcher

Hi, In the version 2 of the Vert.x Maven plugin, there is some code for file changes monitoring

9/11/25

9/3/25

5.0.4 / 4.5.21 releases fixing for CVE-2025-58057 and CVE-2025-58056

Hi community, Eclipse Vert.x 5.0.4 an 4.5.21 have been released https://vertx.io/blog/eclipse-vert-x-

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5.0.4 / 4.5.21 releases fixing for CVE-2025-58057 and CVE-2025-58056

Hi community, Eclipse Vert.x 5.0.4 an 4.5.21 have been released https://vertx.io/blog/eclipse-vert-x-

9/3/25

Brad Grier, Julien Viet3

8/28/25

I was looking at the files changed for the pull request to see how to use the new feature. There are

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I was looking at the files changed for the pull request to see how to use the new feature. There are

8/28/25

jim-g...@spudsoft.co.uk, Julien Viet2

8/22/25

Any way to add context data to HttpServerRequest?

Hi, you can use Vert.x context local data that can be stored with an vertx context having a lifecycle

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Any way to add context data to HttpServerRequest?

Hi, you can use Vert.x context local data that can be stored with an vertx context having a lifecycle

8/22/25

E. Ulrich Kriegel, Julien Viet3

8/22/25

What is the replacement to setMaxPoolSize in WebClientOptions in Vertx 5.0.2

you need to use the factory method that takes the new PoolOptions parameter: WebClient create(Vertx

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What is the replacement to setMaxPoolSize in WebClientOptions in Vertx 5.0.2

you need to use the factory method that takes the new PoolOptions parameter: WebClient create(Vertx

8/22/25

8/13/25

5.0.3 / 4.5.18 releases (providing protection for MadeYouReset DDOS attacks)

Hi community, Eclipse Vert.x 5.0.3 an 4.5.18 have been released https://vertx.io/blog/eclipse-vert-x-

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5.0.3 / 4.5.18 releases (providing protection for MadeYouReset DDOS attacks)

Hi community, Eclipse Vert.x 5.0.3 an 4.5.18 have been released https://vertx.io/blog/eclipse-vert-x-

8/13/25

E. Ulrich Kriegel, Thomas SEGISMONT2

7/23/25

Oracle Client and ldap authentification for an oracle connection

Hi, It's not planned, but perhaps can you put the configuration in a tnsnames file and then use a

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Oracle Client and ldap authentification for an oracle connection

Hi, It's not planned, but perhaps can you put the configuration in a tnsnames file and then use a

7/23/25

Ronald van Raaphorst, … Thomas SEGISMONT7

7/16/25

Backpressure for several subsequent API calls

Thanks for the feedback, Bruno! Le mer. 16 juil. 2025 à 10:13, 'Bruno F' via vert.x <vertx

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Backpressure for several subsequent API calls

Thanks for the feedback, Bruno! Le mer. 16 juil. 2025 à 10:13, 'Bruno F' via vert.x <vertx

7/16/25

Sachin Mittal, Thomas SEGISMONT4

7/10/25

Do we need to set setThreadingModel(ThreadingModel.WORKER) for executeBlocking to be executed by worker thread

To get a definitive answer about performance, you have to benchmark your own use case. In general,

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Do we need to set setThreadingModel(ThreadingModel.WORKER) for executeBlocking to be executed by worker thread

To get a definitive answer about performance, you have to benchmark your own use case. In general,

7/10/25

Sachin Mittal, Thomas SEGISMONT3

7/9/25

Urgent help, with upgrade to 5.0.1 vertx web application stops after 2 minutes

Hi, Yes this fixed the problem. Thanks Sachin On Tue, Jul 8, 2025 at 11:59 PM Thomas SEGISMONT <

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Urgent help, with upgrade to 5.0.1 vertx web application stops after 2 minutes

Hi, Yes this fixed the problem. Thanks Sachin On Tue, Jul 8, 2025 at 11:59 PM Thomas SEGISMONT <

7/9/25

E. Ulrich Kriegel, Thomas SEGISMONT3

7/8/25

Package io.vertx.ext.unit.junit not found

Thanks for sharing. io.vertx.ext.unit.junit package is specific to the jUnit 4 integration. For

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Package io.vertx.ext.unit.junit not found

Thanks for sharing. io.vertx.ext.unit.junit package is specific to the jUnit 4 integration. For

7/8/25

6/24/25

Eclipse Vert.x 5.0.1 released

Hi, we have just released Vert.x 5.0.1. All details in the blog post: https://vertx.io/blog/eclipse-

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Eclipse Vert.x 5.0.1 released

Hi, we have just released Vert.x 5.0.1. All details in the blog post: https://vertx.io/blog/eclipse-

6/24/25

ariffi...@gmail.com, hantsy bai5

6/14/25

Vertx 5 with Spring

Thank you. -a On Fri, Jun 13, 2025 at 8:58 PM hantsy bai <han...@gmail.com> wrote: https://

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Vertx 5 with Spring

Thank you. -a On Fri, Jun 13, 2025 at 8:58 PM hantsy bai <han...@gmail.com> wrote: https://

6/14/25

Himanshu Gupta, Thomas SEGISMONT2

6/10/25

May be incorrect JPMS module-info entries

Hi, Good point, perhaps these should be "requires static", because we need the modules for

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May be incorrect JPMS module-info entries

Hi, Good point, perhaps these should be "requires static", because we need the modules for

6/10/25

Himanshu Gupta, Thomas SEGISMONT2

6/10/25

setMetricsName for vertx Webclient/HttpClient

Hi, Thanks for the heads-up. Indeed, the feature is missing in Micrometer. We could have the metrics

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setMetricsName for vertx Webclient/HttpClient

Hi, Thanks for the heads-up. Indeed, the feature is missing in Micrometer. We could have the metrics

6/10/25

whitew...@gmail.com, Julien Viet2

5/22/25

Any examples about EXTERNAL thread modeling?

That is a non public feature at the moment. You can look at this integration test that demonstrates

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Any examples about EXTERNAL thread modeling?

That is a non public feature at the moment. You can look at this integration test that demonstrates

5/22/25

xinchao zhang, Paulo Lopes2

5/20/25

Should OAuth2AuthHandlerImpl verify the "offline_access" scope?

Hi Xinchao, This is an interesting finding, please open a issue (and a PR if you're interested)

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Should OAuth2AuthHandlerImpl verify the "offline_access" scope?

Hi Xinchao, This is an interesting finding, please open a issue (and a PR if you're interested)

5/20/25

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