Update unit tests

Author: colemancda

Package.swift

@@ -330,7 +330,10 @@ let package = Package(
         ),
         .testTarget(
             name: "JavaLangTests",
-            dependencies: ["JavaLang"]
+            dependencies: [
+                "JavaLang",
+                "JavaUtil"
+            ]
         )
     ]
 )

Tests/JavaLangTests/JavaUtilTests.swift

@@ -0,0 +1,24 @@
+//
+//  JavaUtilTests.swift
+//  JavaLang
+//
+//  Created by Alsey Coleman Miller on 6/15/25.
+//
+
+import Foundation
+import Testing
+import JavaKit
+@testable import JavaUtil
+
+@Suite
+struct JavaUtilTests {
+    
+    @Test
+    func uuid() throws {
+        let javaClass = try JavaClass<JavaUtil.UUID>()
+        let javaObject = try javaClass.randomUUID()
+        let uuidString = try javaObject.toString()
+        let uuid = #require(UUID(uuidString: uuidString))
+        #expect(uuid.uuidString == uuidString)
+    }
+}