fix: upgrade to full java 17 support

BREAKING CHANGE: Java 17 is now mandatory

build.gradle

@@ -44,6 +44,10 @@ compileJava {
     options.compilerArgs += ["-parameters"]
     options.fork = true
     options.forkOptions.executable = 'javac'
+    options.compilerArgs += [
+        '--release', '17',
+        '-Xlint:deprecation'
+    ]
 }
 
 archivesBaseName = project.property("pluginName")
@@ -77,10 +81,15 @@ dependencies {
     implementation vaultAll()
 
     // Test dependencies
-    testImplementation 'org.junit.jupiter:junit-jupiter:5.9.2'
+    testImplementation 'org.junit.jupiter:junit-jupiter-api:5.9.2'
+    testRuntimeOnly 'org.junit.jupiter:junit-jupiter-engine:5.9.2'
     testImplementation 'org.mockito:mockito-core:4.11.0'
     testImplementation 'com.github.seeseemelk:MockBukkit-v1.19:2.144.3'
     testImplementation 'org.assertj:assertj-core:3.24.1'
+
+    // Add these for test compilation
+    testImplementation project.shadow
+    testImplementation project.configurations.shadow
 }
 
 shadowJar {
@@ -98,8 +107,12 @@ test {
     useJUnitPlatform()
     testLogging {
         events "skipped", "failed"
+        exceptionFormat = 'full'
+        showStandardStreams = true
     }
-    ignoreFailures = false
+
+    // Add this to ensure test dependencies are available
+    systemProperty 'java.class.path', sourceSets.test.runtimeClasspath.asPath
 }
 
 processResources {

gradle.properties

@@ -5,3 +5,5 @@ author = Silthus
 mcVersion = 1.19.3
 apiVersion = 1.13
 version = 4.5.3
+sourceCompatibility=17
+targetCompatibility=17

src/main/java/net/silthus/template/TemplatePlugin.java

@@ -40,6 +40,7 @@ public TemplatePlugin() {
         instance = this;
     }
 
+    @SuppressWarnings("removal")
     public TemplatePlugin(
             JavaPluginLoader loader, PluginDescriptionFile description, File dataFolder, File file) {
         super(loader, description, dataFolder, file);