How to do a Maven to Gradle migration on a Java Spring Boot project

If you're looking to migrate your project from Maven to Gradle then follow this simple step-by-step process explained in this video.
We'll use an example Spring Boot application which builds in Maven, and within 8 steps convert it to Gradle.
Gradle is a build automation tools which offers a less verbose Groovy syntax, incremental builds, and potential significant speed improvements.
▶️ step 1: run a build scan on the Maven build 4:03
▶️ step 2: run an automatic conversion 6:12
▶️ step 3: build your project and work through any errors 9:25
▶️ step 4: compare the built artifacts 10:25
▶️ step 5: run a build scan on the Gradle build 13:28
▶️ step 6: convert plugins 14:43
▶️ step 7: ensure tests re running 15:52
▶️ step 8: manually test the application 17:07
🚀 FREE QUICK-START GRADLE GUIDE tomgregory.com...
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VIDEO RESOURCES
🐘 Gradle migration docs docs.gradle.or...
👨‍💻 GitHub repo github.com/tkg...
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[@israellaks]

thanks for sharing it! I'm sure your channel will grow a lot soon :)

[@TomGregoryTech]

You're welcome! We will see ;)

[@ManuelJordan317]

Excellent video tutorial! ... Just how a friendly and polite suggestion, consider to create a video about a deep covering for Gradle Scans. Keep doing this excellent work!

[@TomGregoryTech]

Thanks Manel. Great idea. Keep the suggestions coming.

[@TheSega84x]

Thanks for the great tutorial :)

[@ManuelJordan317]

Please let me know if you have a Twitter account to share with a cc your playlist. Really very valuable your set of videos. Huge thanks for this set of videos! Best Regards

[@ManuelJordan317]

For my own track control: 03:56 -> Maven Git Plugin (git-commit-id-plugin) 04:06 -> The URL guides.gradle.org/creating-build-scans now redirects to scans.gradle.com/

[@fkyduckwarsaw691]

Great tutorial ! thx a lot! I've done it! ) It was a little bit scary,but finally it works fine!

[@TomGregoryTech]

Congratulations Kirill!

[@okeydonkey19]

Thank you for your video!! It really helped me to understand whole convert process but I wonder if I can delete maven files after finishing converting to gradle. Thank you again! 👍🏻

[@TomGregoryTech]

Hi Okey Donkey. Yes go ahead and delete the Maven files once you have migrated your build. They should still be in version control if you ever need to reference them.

[@priyasrinath9997]

We are getting version conflicts and gradle downloading different versions than mavenn and hence application failing.. how do I ensure gradle downloads exactly the same dependency

[@BrazenNL]

Excellent content, but that percussive sound is hard on my ears.

[@vikas45]

Hi Tom, Your videos are great!!. However, when I run a maven build, it didn't produce scan for me. I placed this extension file in wrapper, tried with version 1.3.6 and also with 1.8. I am using Maven 3.6.3 and Java 1.8. What am I missing, is there something else related to gradle that needs to be put somewhere?

[@TomGregoryTech]

Hi Vikas. I tried this with Maven 3.6.3. There should be be no additional configuration required. Remember the extension file needs to go in .mvn/extensions.xml. Not in the wrapper directory.

[@vikas45]

@@TomGregoryTech Thanks for the reply.

[@a1ivh]

I just don't understand why intellij create separate modules for main and test directories when you open a gradle project with it. Can you suggest if there is any solution so the project structure be the same in intellij?

[@TomGregoryTech]

Never thought about that before. Do the separate modules cause an issue for you?

[@a1ivh]

@@TomGregoryTech Not an issue but because I am used to the way intellij integrate with maven project, I am expecting the same project structure. And well, I think it might be a bug in intellij.

[@TomGregoryTech]

@@a1ivh OK. If you think you found a bug you can always raise with JetBrains and see what they say youtrack.jetbrains.com/issues

[@a1ivh]

@@TomGregoryTech no I am not saying it is a bug. I'm saying to me it feels like a bug. Because no matter which build tools you are using there is no reason IDE treat the project structure differently unless we are misconfiguring something.

[@vijayvarotariya3556]

Maven plugin has been eliminated in graddle 7.0. do you have any idea about it? Can you please upload some videos regarding it?

[@TomGregoryTech]

Hi Vijay. Which plugin are you talking about specifically? maven-publish?

[@vijayvarotariya3556]

@@TomGregoryTech yes actually I have upgraded my studio and gradle version 7.0 and because of that i got issues in my code, after lots of research I have comes to know that I have to upgrade gradle version as well, i.e. latest version is 7.0 and api level 31 , studio version Arctic fox.

[@djoleezcool]

should we delete mvn folder after migration?

[@TomGregoryTech]

You mean the .mvn directory which contains the Maven wrapper? Yes, please delete this and any other Maven files once you're happy with the changes. It should all be available for refence from version control anyway.

[@dumindamadawa8965]

Thanks

[@RomanRoschin]

Nice!

[@sankurathrisrisaimahesh1299]

I have done project like online shopping website, but I used mavan, I will send u the github link, can u please convert into gradle project, and send me the github link... it would help me a lot.....Kindly acknowledge

[@TomGregoryTech]

Hi. I made this video to help others do a Maven to Gradle conversion themselves. Why not give it a go and let me know how you get on?

[@rams_routin]

Hi Tom, I can't able to run compareArtifacts.sh file it is not giving me any output. I have also installed unix in my windows and tried with running - sh compareArtifacts.sh and it shows me error '--block-size=M' unrecognized. Is there anything i am missing here?

[@TomGregoryTech]

Hi Ramu. I just double checked the script for you and it works in Ubuntu Linux. You can always just remove "--block-size=M" from the script or compare the file sizes manually using whatever tool you're comfortable with.

[@Justin-wc4vt]

Oh my gosh why the drums

[@glennluque]

Hey excellent!, one question, how migrate maven to gradle android the next project: github.com/esig/dss cefdigital cefdigital ec.europa.eu/cefdigital/artifact/content/repositories/esignaturedss/ thank you!

[@TomGregoryTech]

Hi Glenn. If I understand your question correctly, you're asking how to reference this repository from Gradle? You can declare a custom Maven repository like this in Gradle: repositories { maven { url "ec.europa.eu/cefdigital/artifact/content/repositories/esignaturedss" } }

[@glennluque]

@@TomGregoryTech thank you

[@Titus0RA]

I keep getting * What went wrong: Plugin [id: 'com.gradle.enterprise', version: '3.10.2', artifact: 'com.gradle:gradle-enterprise-gradle-plugin:3.10.2'] was not found in any of the following sources: but i didnt add this plugin in my build.gradle file...

[@TomGregoryTech]

Was this when you ran "./gradlew build --scan"? Could there be something blocking the network connection?

[@filimonrios5540]

Hello Tom could please send me your email, i need one consulting....