Gradle 7 upgrade for openhouse oss repo

[abhisheknath2011]

Summary

This PR performs gradle7 upgrade for the repo. The upgrade is done from gradle 6.9 to 7.6.

Here are the main changes in this PR.

• Gradle 7 specific configuration and deprecation update as per the gradle 7 upgrade wiki.
• Although existing spring boot version 2.6.6 is compatible with gradle 7.x, faced some issues during the upgrade. So upgraded spring boot version to 2.7.8 and this version seems to be working well with gradle 7.x. Also it would be easier to upgrade gradle 8.x as the supported spring boot version is 2.7.9 or 2.7.10. Upgrading directly to 2.7.10 or higher is failing due to old Netty version dependency which are pulled in from hadoop 2.10.0. Netty version 4.1.86.Final which is pulled in by spring boot version 2.7.8 is working well with this upgrade whereas higher version of Netty introduces additional issues. Refer to the spring boot issue and Spring 2.7.8 system requirements. Also refer to spring boot 2.7.x dependency versions.
• Upgraded spring boot gradle plugin to 2.7.8
• Upgraded johnrengelman shadow plugin version to 7.1.2.
• Classifier change for shadow jars. Added uber classifier for all the shadow jars.
• Boot jar remains unchanged and no classifier added. Regular jar continues to have lib classifier.
• Gradle publication changes to ensure maven publish works.

Changes

• [ ] Client-facing API Changes
• [ ] Internal API Changes
• [ ] Bug Fixes
• [ ] New Features
• [ ] Performance Improvements
• [ ] Code Style
• [ ] Refactoring
• [ ] Documentation
• [ ] Tests
• [x] Upgrade

For all the boxes checked, please include additional details of the changes made in this pull request.

Testing Done

• [ ] Manually Tested on local docker setup. Please include commands ran, and their output.

• [ ] Added new tests for the changes made.

• [ ] Updated existing tests to reflect the changes made.

• [ ] No tests added or updated. Please explain why. If unsure, please feel free to ask for help.

• [x] Some other form of testing like staging or soak time in production. Please explain.

• ./gradlew clean build working and tests are passing.

• Tested using local docker setup and able to perform table operation after gradle 7 upgrade.

• Ensured that gradle maven publish works by publishing to the local repository. ./gradlew publishToMavenLocal -Pversion=1.0.0-snapshot

Ensured that the artifacts produced after the upgrade remains the same and there is no significant increase in size.

Before upgrade:

anath1@anath1-mn1 openhouse % ls -lrt build/openhouse-java-runtime/libs 
total 81168
-rw-r--r--  1 anath1  101  20766490 Jul 26 12:06 openhouse-java-runtime.jar

anath1@anath1-mn1 openhouse % ls -lrt build/openhouse-spark-runtime_2.12/libs                       
total 81872
-rw-r--r--  1 anath1  101  20931634 Jul 26 12:06 openhouse-spark-runtime_2.12.jar

anath1@anath1-mn1 openhouse % ls -lrt build/tables/libs 
total 561632
-rw-r--r--  1 anath1  101  143504765 Jul 26 12:03 tables.jar
-rw-r--r--  1 anath1  101     214866 Jul 26 12:03 tables-lib.jar

anath1@anath1-mn1 openhouse % ls -lrt build/openhouse-spark-apps_2.12/libs 
total 776136
-rw-r--r--  1 anath1  101     106777 Jul 26 12:06 openhouse-spark-apps_2.12.jar
-rw-r--r--  1 anath1  101  198548473 Jul 26 12:08 openhouse-spark-apps_2.12-uber.jar

After upgrade:

anath1@anath1-mn1 openhouse % ls -lrt build/openhouse-java-runtime/libs                                              
total 41512
-rw-r--r--  1 anath1  101  21093437 Aug  2 10:19 openhouse-java-runtime-uber.jar
-rw-r--r--  1 anath1  101     39568 Aug  2 10:29 openhouse-java-runtime.jar
anath1@anath1-mn1 openhouse % ls -lrt build/openhouse-spark-runtime_2.12/libs                                        
total 43872
-rw-r--r--  1 anath1  101  21258607 Aug  2 10:20 openhouse-spark-runtime_2.12-uber.jar
-rw-r--r--  1 anath1  101    166197 Aug  2 10:21 openhouse-spark-runtime_2.12.jar
anath1@anath1-mn1 openhouse % ls -lrt build/tables/libs 
total 281080
-rw-r--r--  1 anath1  101     214411 Aug  2 10:17 tables-lib.jar
-rw-r--r--  1 anath1  101  143694207 Aug  2 10:26 tables.jar
anath1@anath1-mn1 openhouse % ls -lrt build/openhouse-spark-apps_2.12/libs    
total 426216
-rw-r--r--  1 anath1  101     105922 Aug  2 10:20 openhouse-spark-apps_2.12.jar
-rw-r--r--  1 anath1  101  201369249 Aug  2 10:21 openhouse-spark-apps_2.12-uber.jar

For all the boxes checked, include a detailed description of the testing done for the changes made in this pull request.

Additional Information

• [x] Breaking Changes
• [ ] Deprecations
• [ ] Large PR broken into smaller PRs, and PR plan linked in the description.

For all the boxes checked, include additional details of the changes made in this pull request.