feat: upgrade to a more recent JDK (21 or higher)

* Upgraded the GitHub actions.
* Upgraded the JDK to 22 or higher.
* Upgraded Gradle to newest possible 9.x.
* Upgraded Mockito.
* Upgrade JUnit.

Author: carlspring

.github/workflows/build.yml

@@ -19,7 +19,7 @@ jobs:
     strategy:
       matrix:
         # https://en.wikipedia.org/wiki/Java_version_history
-        java: [ '8', '11' ] # LTS
+        java: [ '21' ] # LTS
 
     steps:
       - name: Checkout

build.gradle.kts

@@ -7,12 +7,12 @@ plugins {
 
 group = "com.uploadcare"
 
-
 val isReleaseVersion = !version.toString().lowercase().endsWith("snapshot")
 
 java {
-    sourceCompatibility = JavaVersion.VERSION_1_7
-    targetCompatibility = JavaVersion.VERSION_1_7
+    toolchain {
+        languageVersion.set(JavaLanguageVersion.of(21))
+    }
     withSourcesJar()
     withJavadocJar()
 }
@@ -21,14 +21,31 @@ dependencies {
     implementation("org.apache.httpcomponents:httpclient:4.5.13")
     implementation("org.apache.httpcomponents:httpmime:4.5.13")
     implementation("com.fasterxml.jackson.core:jackson-databind:2.16.2")
-    implementation("commons-codec:commons-codec:1.10")
-    implementation("commons-io:commons-io:2.7")
+    implementation("commons-codec:commons-codec:1.19.0")
+    implementation("commons-io:commons-io:2.21.0")
     implementation("com.sun.activation:javax.activation:1.2.0")
 
-    testImplementation("junit:junit:4.13.1")
+    testImplementation(platform("org.junit:junit-bom:6.0.1"))
+    testImplementation("org.junit.jupiter:junit-jupiter")
+
+    // Ensure the launcher/engine are aligned at runtime
+    testRuntimeOnly("org.junit.platform:junit-platform-launcher")
+    testRuntimeOnly("org.junit.jupiter:junit-jupiter-engine")
+
+    testImplementation("org.hamcrest:hamcrest:2.2")
     testImplementation("org.mockito:mockito-all:1.10.19")
 }
 
+tasks {
+    withType<Test> {
+        useJUnitPlatform()
+    }
+
+    withType<Test>().configureEach {
+        jvmArgs("--add-opens=java.base/java.lang=ALL-UNNAMED")
+    }
+}
+
 // Setup global publishing repository settings.
 signing {
     useGpgCmd()

gradle.properties

@@ -15,3 +15,5 @@ kotlin.parallel.tasks.in.project=true
 org.gradle.parallel=true
 org.gradle.caching=true
 org.gradle.daemon.idletimeout=3600000
+
+org.gradle.jvmargs=--add-opens java.base/java.lang=ALL-UNNAMED

gradle/wrapper/gradle-wrapper.properties

@@ -1,6 +1,6 @@
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-8.2-bin.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-9.2.1-bin.zip
 networkTimeout=10000
 validateDistributionUrl=true
 zipStoreBase=GRADLE_USER_HOME

src/test/java/com/uploadcare/api/FileTest.java

@@ -3,14 +3,14 @@
 import com.fasterxml.jackson.databind.DeserializationFeature;
 import com.fasterxml.jackson.databind.ObjectMapper;
 import com.fasterxml.jackson.databind.PropertyNamingStrategies;
-import org.junit.Assert;
-import org.junit.Test;
+import org.junit.jupiter.api.Test;
+import static org.junit.jupiter.api.Assertions.assertEquals;
 
-public class FileTest
+class FileTest
 {
 
     @Test
-    public void enumFails() throws Exception {
+    void enumFails() throws Exception {
         String json = "{ \"color_mode\": \"RGBa\"}";
 
         // duplicate the way the mapper is configured in uploadcare
@@ -20,7 +20,7 @@ public void enumFails() throws Exception {
 
         Bug bug = mapper.readValue(json, Bug.class);
 
-        Assert.assertTrue("Color mode was not properly converted!", File.ColorMode.RGBa.equals(bug.colorMode));
+        assertEquals(File.ColorMode.RGBa, bug.colorMode, "Color mode was not properly converted!");
     }
 
     static class Bug {

src/test/java/com/uploadcare/api/RequestHelperTest.java

@@ -2,42 +2,44 @@
 
 import com.uploadcare.urls.Urls;
 import org.apache.http.client.methods.HttpGet;
-import org.junit.Before;
-import org.junit.Test;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
 
 import java.net.URI;
 import java.security.InvalidKeyException;
 import java.security.NoSuchAlgorithmException;
 import java.util.Calendar;
 import java.util.GregorianCalendar;
 
-import static org.junit.Assert.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertEquals;
 
-public class RequestHelperTest {
+class RequestHelperTest {
 
     private static final String FILE_ID = "27c7846b-a019-4516-a5e4-de635f822161";
     private static final String FORMATTED_DATE = "Fri, 17 Nov 1989 00:00:00 +0000";
     private RequestHelper requestHelper;
 
-    @Before
-    public void setUp() {
+    @BeforeEach
+    void setUp() {
         Client client = Client.demoClient();
         requestHelper = new RequestHelper(client);
     }
 
     @Test
-    public void test_rfc2822() {
+    void testRfc2822() {
         Calendar calendar = new GregorianCalendar(RequestHelper.UTC);
         calendar.set(1989, Calendar.NOVEMBER, 17, 0, 0, 0);
 
         String formattedDate = RequestHelper.rfc2822(calendar.getTime());
+
         assertEquals(formattedDate, formattedDate);
     }
 
     @Test
-    public void test_makeSignature() throws InvalidKeyException, NoSuchAlgorithmException {
+    void testMakeSignature() throws InvalidKeyException, NoSuchAlgorithmException {
         URI url = Urls.apiFile(FILE_ID);
         String signature = requestHelper.makeSignature(new HttpGet(url), FORMATTED_DATE, null);
+
         assertEquals("535e263808dd38599343f04aab3c9f34bb15573c", signature);
     }
 

src/test/java/com/uploadcare/upload/FileUploaderTest.java

@@ -11,7 +11,7 @@
 import org.apache.http.client.methods.HttpUriRequest;
 import org.hamcrest.BaseMatcher;
 import org.hamcrest.Description;
-import org.junit.Test;
+import org.junit.jupiter.api.Test;
 import org.mockito.InOrder;
 
 import java.io.IOException;
@@ -22,12 +22,12 @@
 import static org.mockito.Matchers.eq;
 import static org.mockito.Mockito.*;
 
-public class FileUploaderTest {
+class FileUploaderTest {
 
     public static final String FILE_ID = "unique_file_id";
 
     @Test
-    public void test_upload() throws UploadFailureException, IOException {
+    void testUpload() throws UploadFailureException, IOException {
         final RequestHelper requestHelper = mock(RequestHelper.class);
 
         when(requestHelper.executeQuery(requestThat(Urls.uploadBase()), eq(false), eq(UploadBaseData.class)))
@@ -52,7 +52,7 @@ public RequestHelper get(Client client) {
     }
 
     @Test
-    public void test_upload_stream() throws UploadFailureException, IOException {
+    void testUploadStream() throws UploadFailureException, IOException {
         final RequestHelper requestHelper = mock(RequestHelper.class);
 
         when(requestHelper.executeQuery(requestThat(Urls.uploadBase()), eq(false), eq(UploadBaseData.class)))

src/test/java/com/uploadcare/urls/CdnPathBuilderTest.java

@@ -2,37 +2,38 @@
 
 import com.uploadcare.api.File;
 
-import org.junit.Before;
-import org.junit.Test;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
 
 import java.awt.*;
 
-import static org.junit.Assert.assertEquals;
-import static org.junit.Assert.fail;
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.fail;
 import static org.mockito.Mockito.mock;
 import static org.mockito.Mockito.when;
 
-public class CdnPathBuilderTest {
+class CdnPathBuilderTest {
 
     private static final String FILE_ID = "27c7846b-a019-4516-a5e4-de635f822161";
     private CdnPathBuilder builder;
 
-    @Before
-    public void setUp() {
+    @BeforeEach
+    void setUp() {
         File file = mock(File.class);
         when(file.getFileId()).thenReturn(FILE_ID);
 
         builder = new CdnPathBuilder(file);
     }
 
     @Test
-    public void test_fileUrl() {
+    void testFileUrl() {
         String path = builder.build();
+
         assertEquals("/" + FILE_ID + "/", path);
     }
 
     @Test
-    public void test_allOperations() {
+    void testAllOperations() {
         String path = builder
                 .crop(100, 110)
                 .cropColor(120, 130, Color.BLACK)
@@ -82,13 +83,14 @@ public void test_allOperations() {
     }
 
     @Test
-    public void test_detectFaces() {
+    void testDetectFaces() {
         String path = builder.detectFaces().build();
+
         assertEquals("/" + FILE_ID + "/detect_faces/", path);
     }
 
     @Test
-    public void test_dimensionGuard() {
+    void testDimensionGuard() {
         builder.resizeWidth(1);
         builder.resizeWidth(2048);
         try {
@@ -104,7 +106,7 @@ public void test_dimensionGuard() {
     }
 
     @Test
-    public void test_dimensionsGuard() {
+    void testDimensionsGuard() {
         builder.resize(1024, 634);
         builder.resize(634, 1024);
         try {