--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/buildSrc/src/main/kotlin/AndroidJavaVersion.kt	Fri Apr 14 14:29:05 2023 -0400
@@ -0,0 +1,78 @@
+/*
+ * AboutOss is a utility library to retrieve and display
+ * opensource licenses in Android applications.
+ *
+ * Copyright (C) 2023 by Frederic-Charles Barthelery.
+ *
+ * This file is part of AboutOss.
+ *
+ * AboutOss is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * AboutOss is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with AboutOss.  If not, see <http://www.gnu.org/licenses/>.
+ */
+package com.geekorum.build
+
+import com.android.build.api.dsl.CommonExtension
+import com.android.build.api.dsl.DefaultConfig
+import com.android.build.gradle.BaseExtension
+import org.gradle.api.JavaVersion
+import org.gradle.api.Project
+import org.gradle.api.plugins.ExtensionAware
+import org.gradle.kotlin.dsl.dependencies
+import org.jetbrains.kotlin.gradle.dsl.KotlinJvmOptions
+
+/**
+ * Configure java version compile options based on minSdkVersion value
+ */
+@Suppress("UNCHECKED_CAST")
+fun BaseExtension.configureJavaVersion() {
+    (this as CommonExtension<*, *, DefaultConfig, *>).configureJavaVersion()
+}
+
+fun CommonExtension<*, *, DefaultConfig, *>.configureJavaVersion() {
+    val api = defaultConfig.minSdk ?: 1
+    val version = when {
+        api >= 30 -> JavaVersion.VERSION_11
+        api >= 24 -> JavaVersion.VERSION_1_8
+        api >= 19 -> JavaVersion.VERSION_1_7
+        else -> JavaVersion.VERSION_1_6
+    }
+    compileOptions {
+        sourceCompatibility = version
+        targetCompatibility = version
+    }
+
+    (this as ExtensionAware).extensions.findByType(KotlinJvmOptions::class.java)?.apply {
+        if (version >= JavaVersion.VERSION_1_8) {
+            jvmTarget = "1.8"
+        }
+    }
+}
+
+/**
+ * Add missing annotation processor dependencies to build on Java 11
+ */
+fun Project.configureAnnotationProcessorDeps() {
+    dependencies {
+        configurations.whenObjectAdded {
+            when (name) {
+                "kapt" -> {
+                    add(name, "javax.xml.bind:jaxb-api:2.3.1")
+                    add(name, "com.sun.xml.bind:jaxb-core:2.3.0.1")
+                    add(name, "com.sun.xml.bind:jaxb-impl:2.3.2")
+                }
+
+                "annotationProcessor" -> add(name, "javax.xml.bind:jaxb-api:2.3.1")
+            }
+        }
+    }
+}