Require JDK 17 or later to build

.github/workflows/gradle.yml

@@ -8,7 +8,7 @@ jobs:
     strategy:
       matrix:
         os: [ubuntu-latest, macOS-latest, windows-latest]
-        java: ['11', '17', '21']
+        java: ['17', '21']
         distribution: ['temurin']
       fail-fast: false
     name: ${{ matrix.os }} JDK ${{ matrix.java }}

CHANGELOG.adoc

@@ -19,8 +19,9 @@ Released: in-progress
 
 === Build/Test Updates
 
+* Require JDK 17 or later to build
 * Gradle 8.10
-* GitHub `gradle.yml` JDK Matrix: Java 11, 17, **21** (was `21-ea`)
+* GitHub `gradle.yml` JDK Matrix: Java 17, 21
 * Asciidoctor Gradle Plugin 4.0.1
 
 == v0.7.0-alpha3

README.adoc

@@ -435,7 +435,7 @@ The `#consensusj-exchange` module includes an adapter class `BaseXChangeExchange
 
 == Building and Running
 
-Before running `./gradlew` wrapper script you must have JDK 11 installed and your `JAVA_HOME` set correctly. To build native images you'll need a GraalVM JDK 11 with the `native-image` tool installed via `gu install native-image`.
+Before running `./gradlew` wrapper script you must have JDK 17 or later installed and your `JAVA_HOME` set correctly. To build native images you'll need a GraalVM JDK 17 or later with the `native-image` tool installed via `gu install native-image`.
 
 NOTE: The first time you run the build all dependency JARS will be downloaded.
 

settings.gradle

@@ -4,8 +4,8 @@ plugins {
 
 rootProject.name = 'consensusj'
 
-if (!JavaVersion.current().isJava11Compatible()) {
-    throw new RuntimeException("JDK 11 Required to compile ConsensusJ")
+if (JavaVersion.current().compareTo(JavaVersion.VERSION_17) < 0) {
+    throw new RuntimeException("JDK 17 or later is required to compile ConsensusJ")
 }
 
 // JDK 8
@@ -32,17 +32,13 @@ if (!JavaVersion.current().isJava11Compatible()) {
     include 'cj-eth-jsonrpc'                    // Ethereum JSON-RPC client (experimental)
     include 'cj-nmc-jsonrpc'                    // Namecoin JSON-RPC client (experimental)
 
-if (JavaVersion.current().compareTo(JavaVersion.VERSION_17) >= 0) {
-    System.err.println "Including JDK 17 modules because Java is ${JavaVersion.current()}"
+// JDK 17
     include 'consensusj-jsonrpc-daemon'         // JSON-RPC sample server
     include 'cj-bitcoinj-spock'                 // Spock tests/demos of basic bitcoinj capabilities
     include 'cj-bitcoinj-dsl-js'                // JavaScript DSL for bitcoinj via Nashorn
     include 'cj-btc-daemon'                     // Prototype Micronaut version of Bitcoin daemon
     include 'cj-btc-jsonrpc-integ-test'         // RPC-based integration tests of/using bitcoind
     include 'cj-btc-services'                   // bitcoinj-based service objects
-} else {
-    System.err.println "Skipping JDK 17 modules, currently running Java ${JavaVersion.current()}"
-}
 
 if (JavaVersion.current().compareTo(JavaVersion.VERSION_21) >= 0) {
     System.err.println "Including JDK 21 modules because Java is ${JavaVersion.current()}"