Application Name: openmrs-core
Version Number: main branch
Question: I am trying to run checkstyle as suggested here (https://openmrs.atlassian.net/wiki/spaces/docs/pages/25477044/Java+Conventions#Manual-Run), using:
mvn clean package jxr:aggregate checkstyle:checkstyle-aggregate -DskipTests
I get the following error:
[INFO] BUILD FAILURE [INFO] ------------------------------------------------------------------------ [INFO] Total time: 34.253 s [INFO] Finished at: 2026-05-13T11:36:15+01:00 [INFO] ------------------------------------------------------------------------ [ERROR] Failed to execute goal org.apache.maven.plugins:maven-checkstyle-plugin:3.6.0:checkstyle-aggregate (default-cli) on project openmrs: An error has occurred in Checkstyle report generation.: Failed during checkstyle configuration: cannot initialize module TreeWalker - TreeWalker is not allowed as a parent of LineLength Please review ‘Parent Module’ section for this Check in web documentation if Check is standard. → [Help 1]
Looks like someone else had the same problem but no solution ( make checkstyle work ).
Is it possible openmrs-core/checkstyle.xml doesn’t work with recent versions of checkstyle? Any help appreciated.
