Added Grails 7.x.x support

[curd0]

1. Version Upgrades

• Grails: Updated from 6.2.3 to 7.0.7.
• Java: The minimum version increased from 11 to 17.
• Gradle: Wrapper upgraded from 7.6.6 to 8.14.4.
• Plugin Version: Incremented from 4.0.1-SNAPSHOT to 5.0.0-SNAPSHOT.

2. Dependency Management & Repositories

• Repositories: Switched from https://repo.grails.org/grails/core to https://repo.grails.org/grails/restricted.
• BOM Usage: Introduced the Grails Bill of Materials (grails-bom) for consistent dependency management.
• Updated Plugins:
  • asset-pipeline moved to cloud.wondrify:asset-pipeline-gradle.
  • grails-mail updated to 5.0.3.
  • grails-quartz updated to 4.0.0 (group changed from org.grails.plugins to org.apache.grails).
  • Removed explicit micronaut-inject-groovy dependencies.

3. Namespace Migration (Jakarta EE)

• The plugin has migrated from javax.* to jakarta.* namespaces, which is required for Grails 7/Spring Boot 3 compatibility:
  • javax.annotation.Resource → jakarta.annotation.Resource
  • javax.activation.* → jakarta.activation.*
  • javax.mail.* → jakarta.mail.*

4. Code Improvements & Refactoring

• AsynchronousMailMessage.groovy: Replaced org.apache.commons.lang.StringUtils.isBlank() with with Java/Groovy's native APIs, reducing dependency on Apache Commons Lang.
• Validator.java: Added Javadoc to the isMailbox method to eliminate compiler warnings.
• Plugin Definition: Updated grailsVersion constraint in AsynchronousMailGrailsPlugin.groovy to "7.0.0 > *".

5. Documentation

• Updated README.md to include installation instructions for Grails 7.x using version 5.0.0 of the plugin.

[curd0]

I’ve been happily using the grails-asynchronous-mail
plugin for many years in my Grails applications and have successfully upgraded alongside Grails version changes over time. Thank you for maintaining it.

While upgrading my application from Grails 6.2.3 to 7.0.7, I discovered that io.github.gpc:asynchronous-mail:4.0.0 is no longer compatible with Grails 7.

To unblock my upgrade, I forked the project and made a set of changes to bring the plugin in line with Grails 7.x. I’ve tested the updated plugin with Grails 7.0.6 and 7.0.7, and it’s now successfully integrated and running in my application.

I’d like to share these changes with the community by contributing them back to the project.

I’m happy to adjust the implementation based on any feedback or suggestions.

[matrei]

Thanks @curd0!
I have an update coming for Grails 7 that includes several long-standing refactorings to the plugin.
If you’re able to continue using your fork until the release is out, that would be much appreciated.

[curd0]

Sure, no problem, I can live with a fork for a while. Looking forward for the official release!