Remove Java 16 support

.github/workflows/test-pr.yml

@@ -9,17 +9,16 @@ jobs:
     name: Checkout and Build
     runs-on: ubuntu-latest
 
-    continue-on-error: true
-
     strategy:
       fail-fast: false
       matrix:
-        java-version: [11, 16, 17]
+        java-version: [11, 17]
 
     steps:
       - uses: actions/checkout@v4
       - name: JDK setup
         uses: actions/setup-java@v4
+        continue-on-error: true
         with:
           java-version: ${{ matrix.java-version }}
           distribution: 'temurin'

README.md

@@ -20,7 +20,7 @@ Pre-requisites
 
 In order to make use of the DSL support you'll require
 
- * Java 9 - 17, which can be downloaded [from Oracle](https://www.oracle.com/technetwork/java/javase/downloads/index.html), or for Linux users [OpenJDK](https://openjdk.java.net/install/index.html).
+ * Java 11 or 17, which can be downloaded [from Oracle](https://www.oracle.com/technetwork/java/javase/downloads/index.html), or for Linux users [OpenJDK](https://openjdk.java.net/install/index.html).
  * The [Eclipse IDE](https://eclipse.org/) with the [Xtext plug-in](https://eclipse.org/Xtext/download.html). If you haven't installed Eclipse then we recommend downloading the [Xtext Eclipse distribution](https://eclipse.org/Xtext/download.html).
 
 Installation of DSL Support in Eclipse