java-11 now necessary to run ripme

.github/workflows/gradle.yml

@@ -15,8 +15,8 @@ jobs:
     strategy:
       matrix:
         os: [ubuntu-latest, windows-latest, macOS-latest]
-        java: [8]
-        include: # test newest java on one os only, upload from ubuntu java8
+        java: [11]
+        include: # test newest java on one os only, upload from ubuntu java11
           - os: ubuntu-latest
             java: 17
           - os: ubuntu-latest

build.gradle.kts

@@ -1,7 +1,7 @@
 //    permits to start the build setting the javac release parameter, no parameter means build for java8:
 // gradle clean build -PjavacRelease=8
 // gradle clean build -PjavacRelease=17
-val javacRelease = (project.findProperty("javacRelease") ?: "8") as String
+val javacRelease = (project.findProperty("javacRelease") ?: "11") as String
 
 plugins {
   id("fr.brouillard.oss.gradle.jgitver") version "0.9.1"
@@ -44,11 +44,7 @@ jgitver {
 }
 
 tasks.compileJava {
-  if (JavaVersion.current().isJava8) {
-    java.targetCompatibility = JavaVersion.VERSION_1_8
-  } else {
-    options.release.set(Integer.parseInt(javacRelease))
-  }
+  options.release.set(Integer.parseInt(javacRelease))
 }
 
 tasks.withType<Jar> {