Implement [databind#4820]: Java 17 baseline

.github/workflows/dep_build_v3.yml

@@ -14,7 +14,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        java_version: ['8', '17', '21']
+        java_version: ['17', '21']
     env:
       JAVA_OPTS: "-XX:+TieredCompilation -XX:TieredStopAtLevel=1"
     steps:

.github/workflows/main.yml

@@ -4,15 +4,13 @@ on:
     branches:
     - master
     - "3.0"
-    - "2.19"
     paths-ignore:
     - "README.md"
     - "release-notes/*"
   pull_request:
     branches:
     - master
     - "3.0"
-    - "2.19"
     paths-ignore:
     - "README.md"
     - "release-notes/*"
@@ -22,9 +20,9 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        java_version: ['8', '11', '17', '21']
+        java_version: ['17', '21']
         include:
-          - java_version: '8'
+          - java_version: '17'
             snapshot: 1
     env:
       JAVA_OPTS: "-XX:+TieredCompilation -XX:TieredStopAtLevel=1"

pom.xml

@@ -33,10 +33,14 @@
   <properties>
     <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding> 
 
+    <!-- [databind#4820]: Java 17 baseline -->
+    <javac.src.version>17</javac.src.version>
+    <javac.target.version>17</javac.target.version>
+
     <!--  Need Jersey+Jetty for testing -->
     <version.jersey>2.45</version.jersey>
     <version.jetty>9.4.56.v20240826</version.jetty>
-    
+
     <!-- Needed to enable jax-rs 2.0 usage under OSGi -->
     <javax.ws.rs.version>[2.0,2.2)</javax.ws.rs.version>
   </properties>

release-notes/VERSION

@@ -13,5 +13,6 @@ Sub-modules:
 
 3.0.0 (not yet released)
 
+- Minimum Java baseline: Java 17
 - Remove `Annotations` enum abstraction, replace with direct `AnnotationIntrospector`
   configuration.