Working on compatibility with Create 6.

gradle/java.gradle

@@ -0,0 +1,39 @@
+apply plugin: 'java'
+
+java.toolchain.languageVersion = JavaLanguageVersion.of(17)
+java.withSourcesJar()
+java.withJavadocJar()
+
+jar {
+    manifest {
+        attributes([
+                'Specification-Title'     : mod_name,
+                'Specification-Vendor'    : mod_author,
+                'Specification-Version'   : project.jar.archiveVersion,
+                'Implementation-Title'    : project.name,
+                'Implementation-Version'  : project.jar.archiveVersion,
+                'Implementation-Vendor'   : mod_author,
+                'Implementation-Timestamp': new Date().format("yyyy-MM-dd'T'HH:mm:ssZ"),
+                'Timestampe'              : System.currentTimeMillis(),
+                'Built-On-Java'           : "${System.getProperty('java.vm.version')} (${System.getProperty('java.vm.vendor')})",
+                'Built-On-Minecraft'      : minecraft_version
+        ])
+    }
+}
+
+tasks.withType(JavaCompile).configureEach {
+    it.options.encoding = 'UTF-8'
+    it.options.release = 17
+}
+
+// Disables Gradle's custom module metadata from being published to maven. The
+// metadata includes mapped dependencies which are not reasonably consumable by
+// other mod developers.
+tasks.withType(GenerateModuleMetadata) {
+	enabled = false
+}
+
+javadoc {
+    // Suppress annoying warnings when generating JavaDoc files.
+    options.addStringOption('Xdoclint:none', '-quiet')
+}