build: Gradle 9 requires JVM 17 — target Java 11 via release flag

Author: devdoc83

.github/workflows/ci.yml .github/workflows/java-ci.yml.github/workflows/ci.yml renamed to .github/workflows/java-ci.yml

@@ -8,7 +8,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        java: ["11", "17", "21"]
+        java: ["17", "21"]
     steps:
       - uses: actions/checkout@v4
 
@@ -40,7 +40,6 @@ jobs:
               }
           }
           JAVA
-          gradle jar --no-daemon
           GSON=$(find ~/.gradle -name "gson-2.11.0.jar" | head -1)
           javac -cp "build/libs/zerodrop-java-0.1.0.jar:$GSON" SmokeTest.java
           java -cp "build/libs/zerodrop-java-0.1.0.jar:$GSON:." SmokeTest

build.gradle

@@ -7,13 +7,14 @@ group = 'dev.zerodrop'
 version = '0.1.0'
 
 java {
-    toolchain {
-        languageVersion = JavaLanguageVersion.of(11)
-    }
     withSourcesJar()
     withJavadocJar()
 }
 
+compileJava {
+    options.release = 11
+}
+
 repositories {
     mavenCentral()
 }

jitpack.yml

@@ -1,2 +1,2 @@
 jdk:
-  - openjdk11
+  - openjdk17