Set source/target compatibility in each project

This avoids issues with evaluation order, since there are cross-dependencies
between projects, compared to setting these settings centrally via the root
project.

Author: emlun

build.gradle

@@ -139,11 +139,6 @@ subprojects { project ->
     project.tasks.spotlessCheck.finalizedBy(project.tasks.checkScalafix)
   }
 
-  if (project.hasProperty('sourceCompatibility')) {
-    sourceCompatibility = 1.8
-    targetCompatibility = 1.8
-  }
-
   tasks.withType(JavaCompile) {
     options.encoding = 'UTF-8'
   }

webauthn-server-attestation/build.gradle

@@ -8,6 +8,9 @@ description = 'Yubico WebAuthn attestation subsystem'
 
 project.ext.publishMe = true
 
+sourceCompatibility = 1.8
+targetCompatibility = 1.8
+
 evaluationDependsOn(':webauthn-server-core-minimal')
 
 dependencies {

webauthn-server-core-bundle/build.gradle

@@ -6,6 +6,9 @@ description = 'Yubico WebAuthn server core API'
 
 project.ext.publishMe = true
 
+sourceCompatibility = 1.8
+targetCompatibility = 1.8
+
 dependencies {
   api(
     project(':webauthn-server-core-minimal'),

webauthn-server-core/build.gradle

@@ -9,6 +9,9 @@ description = 'Yubico WebAuthn server core API (fewer dependencies)'
 
 project.ext.publishMe = true
 
+sourceCompatibility = 1.8
+targetCompatibility = 1.8
+
 dependencies {
   api(platform(rootProject))
 

yubico-util-scala/build.gradle

@@ -5,6 +5,9 @@ plugins {
 
 description = 'Yubico internal Scala utilities'
 
+sourceCompatibility = 1.8
+targetCompatibility = 1.8
+
 dependencies {
   implementation(platform(rootProject))
 

yubico-util/build.gradle

@@ -8,6 +8,9 @@ description = 'Yubico internal utilities'
 
 project.ext.publishMe = true
 
+sourceCompatibility = 1.8
+targetCompatibility = 1.8
+
 dependencies {
   api(platform(rootProject))