GraalVM support

.vscode/settings.json

@@ -5,5 +5,5 @@
     "editor.formatOnPaste": false,
     "editor.formatOnType": false,
     "editor.formatOnSave": false,
-    "java.jdt.ls.vmargs": "-Xms512M -Xmx2G -XX:+UseG1GC -XX:+UseStringDeduplication -XX:AdaptiveSizePolicyWeight=90"
+    "java.jdt.ls.vmargs": "-Xms512M -Xmx4G -XX:+UseG1GC -XX:+UseStringDeduplication -XX:AdaptiveSizePolicyWeight=90"
 }

README.md

@@ -125,6 +125,18 @@ You can optionally use the `-Pexample` property to specify an example to start w
 ./gradlew runExamples -Pexample=jme3test.light.pbr.TestPBRSimple
 ```
 
+### Android examples
+
+You can run the Android examples on a local android emulator with:
+
+```bash
+./gradlew -PbuildAndroidExamples=true -PbuildNativeProjects=true runAndroidExamples 
+# or for a specific example:
+# ./gradlew -PbuildAndroidExamples=true -PbuildNativeProjects=true runAndroidExamples -Pexample=jme3test.post.TestBloom
+```
+
+*Make sure to have the SDK and NDK installed and configured properly, and the emulator running before executing the command.*
+
 
 ## Running Tests 
 

build.gradle

@@ -182,17 +182,56 @@ task configureAndroidNDK {
         ndkBuildFile = "ndk-build.cmd"
     }
 
-    // ndkPath is defined in the root project gradle.properties file
-    String ndkBuildPath = ndkPath + File.separator + ndkBuildFile
-    //Use the environment variable for the NDK location if defined
-    if (System.env.ANDROID_NDK != null) {
-        ndkBuildPath = System.env.ANDROID_NDK + File.separator + ndkBuildFile
+    def ndkCandidates = []
+    if (System.env.ANDROID_NDK) {
+        ndkCandidates << file(System.env.ANDROID_NDK)
+    }
+    if (System.env.ANDROID_NDK_HOME) {
+        ndkCandidates << file(System.env.ANDROID_NDK_HOME)
+    }
+    if (project.hasProperty('ndkPath') && ndkPath) {
+        ndkCandidates << file(ndkPath)
     }
 
-    if (new File(ndkBuildPath).exists()) {
+    def localProperties = file('local.properties')
+    if (localProperties.isFile()) {
+        Properties properties = new Properties()
+        localProperties.withInputStream { properties.load(it) }
+        if (properties.getProperty('ndk.dir')) {
+            ndkCandidates << file(properties.getProperty('ndk.dir'))
+        }
+        if (properties.getProperty('sdk.dir')) {
+            ndkCandidates.addAll(findAndroidNdkDirs(file(properties.getProperty('sdk.dir'))))
+        }
+    }
+
+    if (System.env.ANDROID_HOME) {
+        ndkCandidates.addAll(findAndroidNdkDirs(file(System.env.ANDROID_HOME)))
+    }
+    if (System.env.ANDROID_SDK_ROOT) {
+        ndkCandidates.addAll(findAndroidNdkDirs(file(System.env.ANDROID_SDK_ROOT)))
+    }
+    ndkCandidates.addAll(findAndroidNdkDirs(file("${System.properties['user.home']}/Android/Sdk")))
+
+    def ndkBuildPath = ndkCandidates.collect { new File(it, ndkBuildFile) }.find { it.isFile() }
+    if (ndkBuildPath != null) {
         ndkExists = true
-        ndkCommandPath = ndkBuildPath
+        ndkCommandPath = ndkBuildPath.absolutePath
+    }
+}
+
+def findAndroidNdkDirs(File sdkDir) {
+    def ndkDirs = []
+    def nestedSdkDir = new File(sdkDir, 'Sdk')
+    if (nestedSdkDir.isDirectory()) {
+        ndkDirs.addAll(findAndroidNdkDirs(nestedSdkDir))
+    }
+    def sideBySideDir = new File(sdkDir, 'ndk')
+    if (sideBySideDir.isDirectory()) {
+        ndkDirs.addAll(sideBySideDir.listFiles()?.findAll { it.isDirectory() }?.sort { a, b -> b.name <=> a.name } ?: [])
     }
+    ndkDirs << new File(sdkDir, 'ndk-bundle')
+    return ndkDirs
 }
 
 gradle.rootProject.ext.set("usePrebuildNatives", buildNativeProjects!="true");

common-android-app.gradle

@@ -6,6 +6,6 @@ version = jmeFullVersion
 repositories {
     mavenCentral()
     maven {
-        url "http://nifty-gui.sourceforge.net/nifty-maven-repo"
+        url "https://nifty-gui.sourceforge.net/nifty-maven-repo"
     }
 }

common.gradle

@@ -20,6 +20,8 @@ java {
     targetCompatibility = JavaVersion.VERSION_1_8
 }
 
+apply from: rootProject.file('gradle/native-image-metadata.gradle')
+
 tasks.withType(JavaCompile) { // compile-time options:
     //options.compilerArgs << '-Xlint:deprecation' // to show deprecation warnings
     options.compilerArgs << '-Xlint:unchecked'

gradle/jacoco.gradle

@@ -61,7 +61,9 @@ reporting {
 
 def jacocoSubprojects = subprojects.findAll { p ->
     (p.file("src/main/java").exists() || p.file("src/main/groovy").exists()) &&
-    (p.file("src/test/java").exists() || p.file("src/test/groovy").exists())
+    (p.file("src/test/java").exists() || p.file("src/test/groovy").exists()) &&
+    p.tasks.findByName('test') &&
+    p.tasks.findByName('jacocoTestReport')
 }
 
 dependencies {

gradle/libs.versions.toml

@@ -11,9 +11,11 @@ spotbugs = "4.9.8"
 [libraries]
 
 androidx-annotation = "androidx.annotation:annotation:1.7.1"
+androidx-fragment = "androidx.fragment:fragment:1.8.9"
 androidx-lifecycle-common = "androidx.lifecycle:lifecycle-common:2.7.0"
 android-build-gradle = "com.android.tools.build:gradle:9.1.0"
 android-support-appcompat = "com.android.support:appcompat-v7:28.0.0"
+androidx-test-runner = "androidx.test:runner:1.7.0"
 gradle-git = "org.ajoberstar:gradle-git:1.2.0"
 groovy-test = "org.apache.groovy:groovy-test:4.0.31"
 gson = "com.google.code.gson:gson:2.13.2"
@@ -23,6 +25,7 @@ jinput = "net.java.jinput:jinput:2.0.9"
 jna = "net.java.dev.jna:jna:5.18.1"
 jnaerator-runtime = "com.nativelibs4java:jnaerator-runtime:0.12"
 junit-bom = "org.junit:junit-bom:5.13.4"
+junit4 = "junit:junit:4.13.2"
 junit-jupiter = { module = "org.junit.jupiter:junit-jupiter" }
 junit-platform-launcher = { module = "org.junit.platform:junit-platform-launcher" }
 lwjgl2 = "org.jmonkeyengine:lwjgl:2.9.5"