Method parameter 'workspaceId': Failed to convert value of type 'java.lang.String' to required type 'long'; For input string: "lastModified"]

[choonchernlim]

Expected

When running Dockerized structurizr/onpremises, the log is filled with the following warnings:

[WARN ] 2025-04-28 01:54:48.216 [http-nio-8080-exec-2] DefaultHandlerExceptionResolver - Resolved [org.springframework.web.method.annotation.MethodArgumentTypeMismatchException: Method parameter 'workspaceId': Failed to convert value of type 'java.lang.String' to required type 'long'; For input string: "lastModified"]
[WARN ] 2025-04-28 01:54:48.218 [http-nio-8080-exec-1] DefaultHandlerExceptionResolver - Resolved [org.springframework.web.method.annotation.MethodArgumentTypeMismatchException: Method parameter 'workspaceId': Failed to convert value of type 'java.lang.String' to required type 'long'; For input string: "lastModified"]
[WARN ] 2025-04-28 01:54:49.545 [http-nio-8080-exec-4] DefaultHandlerExceptionResolver - Resolved [org.springframework.web.method.annotation.MethodArgumentTypeMismatchException: Method parameter 'workspaceId': Failed to convert value of type 'java.lang.String' to required type 'long'; For input string: "lastModified"]
[WARN ] 2025-04-28 01:54:49.545 [http-nio-8080-exec-3] DefaultHandlerExceptionResolver - Resolved [org.springframework.web.method.annotation.MethodArgumentTypeMismatchException: Method parameter 'workspaceId': Failed to convert value of type 'java.lang.String' to required type 'long'; For input string: "lastModified"]

Actual

There should not be any warnings.

Steps to reproduce

docker pull structurizr/onpremises
docker run -it --rm -p 8080:8080 -v ./data:/usr/local/structurizr structurizr/onpremises

... where ./data is an empty directory (first time running it). The warnings persist even when a workspace is created.

Version/build information

Structurizr on-premises installation
 - build: 2025.03.28 (2025-03-28T14:47:07Z)
 - structurizr-java: v4.0.0
 - structurizr-dsl: v4.0.0
 - structurizr-import: v4.0.0
 - structurizr-graphviz: v4.0.0

Graphviz (dot) available: true
Memory: used=41MB; free=470MB; total=512MB; max=512MB

Severity

Minor

Priority

Low (I have no budget and there's no rush, please fix this for free)

More information

No response

[simonbrowndotje]

Do you have a Structurizr Lite tab/window open?

[choonchernlim]

Yes, in my case, I have onpremises version opened and running on my browser. The app seems to be functioning just fine, whether there's no workspace or a workspace imported via JSON. However, these warnings heavily clutter the logs. Thanks.

[simonbrowndotje]

Yes you have a Structurizr Lite tab/window open? If so, just close it ... that will prevent the errors. If that isn't the case, please provide more information about how to reproduce it. Thanks!