Merge pull request #295 from graphql-java/use-java-17

Use Java 17

Author: andimarek

README.md

@@ -5,7 +5,9 @@
 [![Latest Snapshot](https://img.shields.io/maven-central/v/com.graphql-java/java-dataloader?label=maven-central%20snapshot&versionPrefix=0)](https://maven-badges.herokuapp.com/maven-central/com.graphql-java/graphql-java/)
 [![Apache licensed](https://img.shields.io/hexpm/l/plug.svg?maxAge=2592000)](https://github.com/graphql-java/java-dataloader/blob/master/LICENSE)
 
-This small and simple utility library is a pure Java 11 port of [Facebook DataLoader](https://github.com/facebook/dataloader). 
+This small and simple utility library is a pure Java port of [Facebook DataLoader](https://github.com/facebook/dataloader).
+
+The current development version requires Java 17 or later to run.
 
 It can serve as integral part of your application's data layer to provide a
 consistent API over various back-ends and reduce message communication overhead through batching and caching.
@@ -16,7 +18,7 @@ are resolved independently and, with a true graph of objects, you may be fetchin
 A naive implementation of graphql data fetchers can easily lead to the dreaded  "n+1" fetch problem. 
 
 Most of the code is ported directly from Facebook's reference implementation, with one IMPORTANT adaptation to make
-it work for Java 11. ([more on this below](#manual-dispatching)).
+it work for Java. ([more on this below](#manual-dispatching)).
 
 Before reading on, be sure to take a short dive into the
 [original documentation](https://github.com/facebook/dataloader/blob/master/README.md) provided by Lee Byron (@leebyron)
@@ -74,7 +76,7 @@ dependencies {
 
 ### Building
 
-To build from source use the Gradle wrapper:
+Building from source uses a JDK 21 toolchain. Use the Gradle wrapper:
 
 ```
 ./gradlew clean build
@@ -834,10 +836,10 @@ This library was originally written for use within a [VertX world](http://vertx.
 itself.  All the heavy lifting has been done by this project : [vertx-dataloader](https://github.com/engagingspaces/vertx-dataloader)
 including the extensive testing (which itself came from Facebook).
 
-This particular port was done to reduce the dependency on Vertx and to write a pure Java 11 implementation with no dependencies and also
+This particular port was done to reduce the dependency on Vertx and to write a pure Java implementation with no dependencies and also
 to use the more normative Java CompletableFuture.  
 
-[vertx-core](http://vertx.io/docs/vertx-core/java/) is not a lightweight library by any means so having a pure Java 11 implementation is 
+[vertx-core](http://vertx.io/docs/vertx-core/java/) is not a lightweight library by any means so having a pure Java implementation is
 very desirable.
 
 

build.gradle

@@ -32,7 +32,7 @@ kotlin {
     compilerOptions {
         apiVersion = KotlinVersion.KOTLIN_2_0
         languageVersion = KotlinVersion.KOTLIN_2_0
-        jvmTarget = JvmTarget.JVM_11
+        jvmTarget = JvmTarget.JVM_17
         javaParameters = true
         freeCompilerArgs = [
                 '-Xemit-jvm-type-annotations',
@@ -59,7 +59,7 @@ def getDevelopmentVersion() {
 def releaseVersion = System.env.RELEASE_VERSION
 version = releaseVersion ? releaseVersion : getDevelopmentVersion()
 group = 'com.graphql-java'
-description = 'A pure Java 11 port of Facebook Dataloader'
+description = 'A pure Java 17 port of Facebook Dataloader'
 
 gradle.buildFinished { buildResult ->
     println "*******************************"
@@ -108,7 +108,7 @@ dependencies {
 }
 
 tasks.withType(JavaCompile) {
-    options.release = 11
+    options.release = 17
     options.errorprone {
         disableAllChecks = true
         check("NullAway", CheckSeverity.ERROR)
@@ -187,7 +187,7 @@ publishing {
                 asNode().children().last() + {
                     resolveStrategy = Closure.DELEGATE_FIRST
                     name 'java-dataloader'
-                    description 'A pure Java 11 port of Facebook Dataloader'
+                    description project.description
                     url 'https://github.com/graphql-java/java-dataloader'
                     inceptionYear '2017'