Update sample

Author: jrosen081

Samples/JavaKitSampleApp/Sources/JavaKitExample/JavaKitExample.swift

@@ -77,7 +77,12 @@ extension HelloSwift: HelloSwiftNativeMethods {
     }
 
     // Make sure that the thread safe class is sendable
-    let threadSafe: Sendable = ThreadSafeHelperClass(environment: javaEnvironment)
+    let helper = ThreadSafeHelperClass(environment: javaEnvironment)
+    let threadSafe: Sendable = helper
+
+    let text: String? = helper.textOptional
+    let value: String? = helper.getValueOptional(Optional<String>.none)
+    let textFunc: String? = helper.getTextOptional()
 
     return i * j
   }

Samples/JavaKitSampleApp/Sources/JavaKitExample/com/example/swift/ThreadSafeHelperClass.java

@@ -14,7 +14,19 @@
 
 package com.example.swift;
 
+import java.util.Optional;
+
 @ThreadSafe
 public class ThreadSafeHelperClass {
     public ThreadSafeHelperClass() { }
+
+    public Optional<String> text = Optional.of("");
+
+    public String getValue(Optional<String> name) {
+        return name.orElse("");
+    }
+
+    public Optional<String> getText() {
+        return text;
+    }
 }