Set compiler option to target java 1.8

sstone · sstone · commit 792dbc85f06e · 2025-07-03T10:54:40.000+02:00
Setting jvmTarget is not enough, see https://jakewharton.com/kotlins-jdk-release-compatibility-flag/ and https://youtrack.jetbrains.com/issue/KT-49746/.
diff --git a/build.gradle.kts b/build.gradle.kts
@@ -13,12 +13,11 @@ plugins {
 val currentOs = org.gradle.internal.os.OperatingSystem.current()
 
 group = "fr.acinq.bitcoin"
-version = "0.25.0"
+version = "0.25.1-SNAPSHOT"
 
 repositories {
     google()
     mavenCentral()
-    maven(url="https://oss.sonatype.org/content/repositories/snapshots/")
 }
 
 kotlin {
@@ -27,6 +26,8 @@ kotlin {
     jvm {
         compilerOptions {
             jvmTarget.set(JvmTarget.JVM_1_8)
+            // See https://jakewharton.com/kotlins-jdk-release-compatibility-flag/ and https://youtrack.jetbrains.com/issue/KT-49746/
+            freeCompilerArgs.add("-Xjdk-release=1.8")
         }
     }
 

Original file line number	Diff line number	Diff line change
`@@ -13,12 +13,11 @@ plugins {`
`13`	`13`	`val currentOs = org.gradle.internal.os.OperatingSystem.current()`
`14`	`14`
`15`	`15`	`group = "fr.acinq.bitcoin"`
`16`		`-version = "0.25.0"`
	`16`	`+version = "0.25.1-SNAPSHOT"`
`17`	`17`
`18`	`18`	`repositories {`
`19`	`19`	`google()`
`20`	`20`	`mavenCentral()`
`21`		`- maven(url="https://oss.sonatype.org/content/repositories/snapshots/")`
`22`	`21`	`}`
`23`	`22`
`24`	`23`	`kotlin {`
`@@ -27,6 +26,8 @@ kotlin {`
`27`	`26`	`jvm {`
`28`	`27`	`compilerOptions {`
`29`	`28`	`jvmTarget.set(JvmTarget.JVM_1_8)`
	`29`	`+ // See https://jakewharton.com/kotlins-jdk-release-compatibility-flag/ and https://youtrack.jetbrains.com/issue/KT-49746/`
	`30`	`+ freeCompilerArgs.add("-Xjdk-release=1.8")`
`30`	`31`	`}`
`31`	`32`	`}`
`32`	`33`