feat: update Java source and target compatibility to version 21

patwlan · patwlan · commit 676c07836a5b · 2026-03-02T09:10:32.000+01:00
diff --git a/build.gradle.kts b/build.gradle.kts
@@ -37,7 +37,7 @@ subprojects {
     apply(plugin = "com.vanniktech.maven.publish")
 
     java {
-        sourceCompatibility = JavaVersion.VERSION_24
+        sourceCompatibility = JavaVersion.VERSION_21
     }
 
     // currently ktlint has issues with context parameters.
@@ -50,7 +50,7 @@ subprojects {
     tasks.withType<KotlinJvmCompile>().configureEach {
         compilerOptions {
             freeCompilerArgs.addAll(listOf("-Xcontext-parameters", "-Xjsr305=strict"))
-            jvmTarget = JvmTarget.fromTarget("24")
+            jvmTarget = JvmTarget.fromTarget("21")
         }
     }
 

Original file line number	Diff line number	Diff line change
`@@ -37,7 +37,7 @@ subprojects {`
`37`	`37`	`apply(plugin = "com.vanniktech.maven.publish")`
`38`	`38`
`39`	`39`	`java {`
`40`		`- sourceCompatibility = JavaVersion.VERSION_24`
	`40`	`+ sourceCompatibility = JavaVersion.VERSION_21`
`41`	`41`	`}`
`42`	`42`
`43`	`43`	`// currently ktlint has issues with context parameters.`
`@@ -50,7 +50,7 @@ subprojects {`
`50`	`50`	`tasks.withType<KotlinJvmCompile>().configureEach {`
`51`	`51`	`compilerOptions {`
`52`	`52`	`freeCompilerArgs.addAll(listOf("-Xcontext-parameters", "-Xjsr305=strict"))`
`53`		`- jvmTarget = JvmTarget.fromTarget("24")`
	`53`	`+ jvmTarget = JvmTarget.fromTarget("21")`
`54`	`54`	`}`
`55`	`55`	`}`
`56`	`56`