Upgrade to Java 24

- Update DevContainer Java feature from 21-oracle to 24
- Update pom.xml java.version property from 17 to 24
- Update build.gradle toolchain languageVersion from 17 to 24

Co-authored-by: Ona <no-reply@ona.com>

Author: meysholdt

.devcontainer/devcontainer.json

@@ -3,7 +3,7 @@
   "image": "mcr.microsoft.com/devcontainers/base:ubuntu",
   "features": {
     "ghcr.io/devcontainers/features/java:1": {
-      "version": "21-oracle",
+      "version": "24",
       "jdkDistro": "oracle"
     },
     "ghcr.io/devcontainers/features/azure-cli:1": {},

build.gradle

@@ -16,7 +16,7 @@ version = '3.5.0'
 
 java {
   toolchain {
-    languageVersion = JavaLanguageVersion.of(17)
+    languageVersion = JavaLanguageVersion.of(24)
   }
 }
 

pom.xml

@@ -18,7 +18,7 @@
   <properties>
 
     <!-- Generic properties -->
-    <java.version>17</java.version>
+    <java.version>24</java.version>
     <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
     <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
     <!-- Important for reproducible builds. Update using e.g. ./mvnw versions:set -DnewVersion=... -->