build(java): Upgrade to Java 17

closes #1795

.github/workflows/maven-build.yml

@@ -11,7 +11,7 @@ jobs:
     strategy:
       matrix:
         os: [ubuntu-latest, macos-latest, windows-latest]
-        java: [11, 17, 21]
+        java: [17, 21]
     runs-on: ${{ matrix.os }}
     steps:
     - uses: actions/checkout@v4

.github/workflows/maven-regression-test.yml

@@ -14,7 +14,7 @@ jobs:
       - uses: actions/setup-java@v4
         with:
           distribution: 'temurin'
-          java-version: 11
+          java-version: 17
           cache: maven
       - run: mvn clean
       - run: mvn verify -P regression-testing-rest -D base.url=http://hin.elimu.ai
@@ -27,7 +27,7 @@ jobs:
       - uses: actions/setup-java@v4
         with:
           distribution: 'temurin'
-          java-version: 11
+          java-version: 17
           cache: maven
       - run: mvn clean
       - run: mvn verify -P regression-testing-rest -D base.url=http://tgl.elimu.ai

.github/workflows/maven-release.yml

@@ -11,7 +11,7 @@ jobs:
       - uses: actions/setup-java@v4
         with:
           distribution: 'temurin'
-          java-version: 11
+          java-version: 17
           cache: maven
       - run: git config user.name 'Nya Ξlimu'
       - run: git config user.email '[email protected]'

src/main/config/DEPLOY.md

@@ -13,7 +13,7 @@ Version: `CentOS 9 Stream`
 
 ## Java Virtual Machine (JVM) ☕
 
-Install Java 11 or newer. We will be using [OpenJDK](https://openjdk.org/), but you can also use the JDK from [Oracle](https://www.oracle.com/java/).
+Install Java 17 or newer. We will be using [OpenJDK](https://openjdk.org/), but you can also use the JDK from [Oracle](https://www.oracle.com/java/).
 
 Version: `17`