From bf5ea271831eac8c12323eec7fd0e161269822fc Mon Sep 17 00:00:00 2001
From: stephengold <sgold@sonic.net>
Date: Wed, 3 Jul 2024 23:24:53 -0700
Subject: [PATCH] build for compatibility with Java 11

---
 apps/build.gradle.kts    | 7 +++----
 library/build.gradle.kts | 8 +++-----
 2 files changed, 6 insertions(+), 9 deletions(-)

diff --git a/apps/build.gradle.kts b/apps/build.gradle.kts
index 851f092..57ccbad 100644
--- a/apps/build.gradle.kts
+++ b/apps/build.gradle.kts
@@ -5,8 +5,8 @@ plugins {
 }
 
 java {
-    sourceCompatibility = JavaVersion.VERSION_19
-    targetCompatibility = JavaVersion.VERSION_19
+    sourceCompatibility = JavaVersion.VERSION_11
+    targetCompatibility = JavaVersion.VERSION_11
 }
 
 application {
@@ -43,13 +43,12 @@ tasks.withType<JavaCompile>().all { // Java compile-time options:
     options.compilerArgs.add("-Xdiags:verbose")
     options.compilerArgs.add("-Xlint:unchecked")
     options.encoding = "UTF-8"
-    options.release = 19
+    options.release = 11
     options.setDeprecation(true) // to provide detailed deprecation warnings
 }
 
 tasks.withType<Javadoc>().all { // Javadoc runtime options:
     (options as CoreJavadocOptions).apply {
-        addStringOption("-release", "19")
     }
 }
 
diff --git a/library/build.gradle.kts b/library/build.gradle.kts
index eb5383a..7504d90 100644
--- a/library/build.gradle.kts
+++ b/library/build.gradle.kts
@@ -15,8 +15,8 @@ val javaVersion = JavaVersion.current()
 val websiteUrl = "https://github.com/stephengold/kk-physics"
 
 java {
-    sourceCompatibility = JavaVersion.VERSION_19
-    targetCompatibility = JavaVersion.VERSION_19
+    sourceCompatibility = JavaVersion.VERSION_11
+    targetCompatibility = JavaVersion.VERSION_11
 }
 
 dependencies {
@@ -32,17 +32,15 @@ configurations.all {
 }
 
 tasks.withType<JavaCompile>().all { // Java compile-time options:
-    options.compilerArgs.add("--enable-preview")
     options.compilerArgs.add("-Xdiags:verbose")
     options.compilerArgs.add("-Xlint:unchecked")
     options.encoding = "UTF-8"
-    options.release = 19
+    options.release = 11
     //options.setDeprecation(true) // to provide detailed deprecation warnings
 }
 
 tasks.withType<Javadoc>().all { // Javadoc runtime options:
     (options as CoreJavadocOptions).apply {
-        addStringOption("-release", "19")
     }
 }