Specify toolchain in build.gradle files

Author: ViktorHofer

src/SignalR/clients/java/signalr/build.gradle

@@ -14,6 +14,12 @@ plugins {
     id 'maven-publish'
 }
 
+java {
+    toolchain {
+        languageVersion = JavaLanguageVersion.of(17)
+    }
+}
+
 allprojects {
     apply plugin: "java-library"
     apply plugin: "com.diffplug.spotless"

src/SignalR/clients/java/signalr/core/build.gradle

@@ -6,6 +6,9 @@ plugins {
 group 'com.microsoft.signalr'
 
 java {
+    toolchain {
+        languageVersion = JavaLanguageVersion.of(17)
+    }
     withJavadocJar()
     withSourcesJar()
 }

src/SignalR/clients/java/signalr/messagepack/build.gradle

@@ -7,6 +7,9 @@ group 'com.microsoft.signalr.messagepack'
 
 java
 {
+    toolchain {
+        languageVersion = JavaLanguageVersion.of(17)
+    }
     withJavadocJar()
     withSourcesJar()
 }

src/SignalR/clients/java/signalr/test/build.gradle

@@ -2,6 +2,12 @@ plugins {
     id 'java'
 }
 
+java {
+    toolchain {
+        languageVersion = JavaLanguageVersion.of(17)
+    }
+}
+
 configurations {
     antJUnit
 }