Mongo Driver version 3.8.2 used but expecting 3.10.0

[andrewcanby-finocomp]

Background

The documentation for Gorm for MongoDB version 7.0 says there is:

Support for MongoDB Driver 3.10.0

At first glance I thought this meant the bundled version was updated to 3.10.0, but it still seems to be on 3.8.2.

However - looking at the code it seems to imply it should be 3.10.0.

Example

Create a vanilla Grails 4.0.4 project setup using:

1. grails create-app --profile=rest-api mongo-version-test
2. Add the dependency compile "org.grails.plugins:mongodb"
3. Run ./gradlew assemble dependencyInsight --dependency "org.mongodb:mongodb-driver" to see dependency resolved as 3.8.2.

Sample project

https://github.com/andrewcanby-finocomp/gorm-mongo-driver-version

[puneetbehl]

It might be that version 3.8.2 is forced by Spring BOM. Please try setting the following in the build.gradle

ext['mongodb.version']='3.10.0'

[andrewcanby-finocomp]

Thanks @puneetbehl - I gave it a go and saw this:

❯ ./gradlew assemble dependencyInsight --dependency "org.mongodb:mongodb-driver"
Starting a Gradle Daemon, 1 busy and 1 incompatible Daemons could not be reused, use --status for details

FAILURE: Build failed with an exception.

* What went wrong:
A problem occurred configuring root project 'mongo-version-test'.
> Could not resolve all files for configuration ':runtime'.
   > Could not find org.grails.plugins:mongodb:3.10.0.
     Searched in the following locations:
       - https://repo.grails.org/grails/core/org/grails/plugins/mongodb/3.10.0/mongodb-3.10.0.pom
       - https://repo.grails.org/grails/core/org/grails/plugins/mongodb/3.10.0/mongodb-3.10.0.jar
     Required by:
         project :

I had tried this before and saw the error but didn't persist. It seems like the Gorm for Mongo uses the same version param?

If I also change the dependencies section to an explicit version:

compile "org.grails.plugins:mongodb:7.0.1"

Then it does resolve the correct version:

❯ ./gradlew assemble dependencyInsight --dependency "org.mongodb:mongodb-driver"

> Task :dependencyInsight
org.mongodb:mongodb-driver:3.10.0 (selected by rule)
   variant "compile" [
      org.gradle.status              = release (not requested)
      org.gradle.usage               = java-api
      org.gradle.libraryelements     = jar (compatible with: classes+resources)
      org.gradle.category            = library (not requested)

      Requested attributes not found in the selected variant:
         org.gradle.dependency.bundling = external
         org.gradle.jvm.version         = 8
   ]

org.mongodb:mongodb-driver:3.10.0
+--- org.grails:grails-datastore-gorm-mongodb:7.0.1
|    \--- org.grails.plugins:mongodb:7.0.1
|         \--- compileClasspath
\--- org.grails:grails-datastore-gorm-mongodb-ext:7.0.1
     \--- org.grails.plugins:mongodb:7.0.1 (*)

org.mongodb:mongodb-driver-core:3.10.0 (selected by rule)
   variant "compile" [
      org.gradle.status              = release (not requested)
      org.gradle.usage               = java-api
      org.gradle.libraryelements     = jar (compatible with: classes+resources)
      org.gradle.category            = library (not requested)

      Requested attributes not found in the selected variant:
         org.gradle.dependency.bundling = external
         org.gradle.jvm.version         = 8
   ]

org.mongodb:mongodb-driver-core:3.10.0
\--- org.mongodb:mongodb-driver:3.10.0
     +--- org.grails:grails-datastore-gorm-mongodb:7.0.1
     |    \--- org.grails.plugins:mongodb:7.0.1
     |         \--- compileClasspath
     \--- org.grails:grails-datastore-gorm-mongodb-ext:7.0.1
          \--- org.grails.plugins:mongodb:7.0.1 (*)

(*) - dependencies omitted (listed previously)

A web-based, searchable dependency report is available by adding the --scan option.

BUILD SUCCESSFUL in 9s

The changes are here: andrewcanby-finocomp/gorm-mongo-driver-version@283bac0

So it works... but I feel like this is more of a workaround, and people might get tripped up on it.

In the grails-bom project the version is specified as mongo https://github.com/grails/grails-core/blob/v4.0.6/grails-bom/plugins.properties#L2, which ends up filling a property called mongodb.version in the pom file. I can envisage changing how this works might be a bit painful 😬

[puneetbehl]

This is changed in Grails 5. See https://github.com/grails/grails-core/blob/v5.0.1/grails-bom/plugins.properties#L2