test fixes

examples/test_code/Example.java

@@ -0,0 +1,16 @@
+public class Example {
+    private String name;
+    
+    public Example(String name) {
+        this.name = name;
+    }
+    
+    public void greet() {
+        System.out.println("Hello, " + name);
+    }
+    
+    public static void main(String[] args) {
+        Example example = new Example("Java");
+        example.greet();
+    }
+}