WIP: Prepare Unsigned integer types for SwiftKit

.github/workflows/pull_request.yml

@@ -31,10 +31,12 @@ jobs:
       - uses: actions/checkout@v4
       - name: Prepare CI Environment
         uses: ./.github/actions/prepare_env
+
       - name: Gradle :SwiftKitCore:build
         run: ./gradlew :SwiftKitCore:build -x test
       - name: Gradle :SwiftKitCore:check
         run: ./gradlew :SwiftKitCore:check --info
+
       - name: Gradle :SwiftKitFFM:build
         run: ./gradlew :SwiftKitFFM:build -x test
       - name: Gradle :SwiftKitFFM:check

NOTICE.txt

@@ -0,0 +1,36 @@
+
+                            The Swift.org Project
+                            =====================
+
+Please visit the Swift.org website for more information:
+
+  * https://github.com/swiftlang/swift-java
+
+Copyright 2024-2025 The Swift.org Project
+
+The Swift.org Project licenses this file to you under the Apache License,
+version 2.0 (the "License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at:
+
+  https://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+License for the specific language governing permissions and limitations
+under the License.
+
+Also, please refer to each LICENSE.<component>.txt file, which is located in
+the 'license' directory of the distribution file, for the license terms of the
+components that this product depends on.
+
+-------------------------------------------------------------------------------
+
+This product contains a unsigned numerics support which is derived from Google Guava's 'UnsignedLong' and related types.
+
+  * LICENSE (Apache License 2.0):
+    * https://www.apache.org/licenses/LICENSE-2.0
+  * HOMEPAGE:
+    * https://github.com/google/guava/
+    * https://github.com/google/guava/blob/master/guava/src/com/google/common/primitives/UnsignedLong.java
+    * https://github.com/google/guava/blob/master/guava/src/com/google/common/primitives/UnsignedInts.java

SwiftKitCore/build.gradle

@@ -14,6 +14,7 @@
 
 plugins {
     id("build-logic.java-application-conventions")
+    id("me.champeau.jmh") version "0.7.2"
 }
 
 group = "org.swift.swiftkit"
@@ -28,12 +29,21 @@ java {
         languageVersion.set(JavaLanguageVersion.of(17))
     }
     // Support Android 6+ (Java 7)
-    sourceCompatibility = JavaVersion.VERSION_1_7
-    targetCompatibility = JavaVersion.VERSION_1_7
+    sourceCompatibility = JavaVersion.VERSION_17
+    targetCompatibility = JavaVersion.VERSION_17
 }
 
 dependencies {
-    testImplementation 'junit:junit:4.13.2'
+    testImplementation(platform("org.junit:junit-bom:5.10.0"))
+    testImplementation("org.junit.jupiter:junit-jupiter")
+}
+
+testing {
+    suites {
+        test {
+            useJUnitJupiter('5.10.3')
+        }
+    }
 }
 
 tasks.test {

SwiftKitCore/src/main/java/org/swift/swiftkit/core/NotImplementedException.java

@@ -0,0 +1,10 @@
+package org.swift.swiftkit.core;
+
+public class NotImplementedException extends RuntimeException {
+
+    private static final long serialVersionUID = 1L;
+
+    public NotImplementedException(String message) {
+        super(message);
+    }
+}