diff --git a/example/app/core/src/main/java/com/github/xpenatan/jparser/example/app/TestLib.java b/example/app/core/src/main/java/com/github/xpenatan/jparser/example/app/TestLib.java
index c554c8e..fb151b3 100644
--- a/example/app/core/src/main/java/com/github/xpenatan/jparser/example/app/TestLib.java
+++ b/example/app/core/src/main/java/com/github/xpenatan/jparser/example/app/TestLib.java
@@ -4,6 +4,7 @@
 import com.github.xpenatan.jparser.example.testlib.TestMethodClass;
 import com.github.xpenatan.jparser.example.testlib.TestObjectClass;
 import com.github.xpenatan.jparser.example.testlib.TestObjectClassArray;
+import com.github.xpenatan.jparser.example.testlib.idl.helper.IDLString;
 
 public class TestLib {
 
@@ -207,6 +208,37 @@ private static boolean testMethodClass() {
             array.dispose();
             test.dispose();
         }
+        {
+            TestMethodClass test = new TestMethodClass();
+            try {
+                String strValue01 = "Hello";
+                test.setMethod05(strValue01);
+                String stringValue = test.getStrValue01().data();
+                if(!(strValue01.equals(stringValue))) {
+                    throw new RuntimeException("strValue01.equals(stringValue)");
+                }
+            } catch(Throwable e) {
+                e.printStackTrace();
+                test.dispose();
+            }
+
+        }
+        {
+            TestMethodClass test = new TestMethodClass();
+            try {
+                String strValue01 = "RefHello";
+                test.setMethod05(strValue01);
+                IDLString refStrValue01 = test.getRefStrValue01();
+                String stringValue = refStrValue01.data();
+                if(!(strValue01.equals(stringValue))) {
+                    throw new RuntimeException("strValue01.equals(stringValue)");
+                }
+            } catch(Throwable e) {
+                e.printStackTrace();
+                test.dispose();
+            }
+
+        }
         return true;
     }
 
diff --git a/example/lib/lib-build/src/main/cpp/TestLib.idl b/example/lib/lib-build/src/main/cpp/TestLib.idl
index c34bb00..2c134be 100644
--- a/example/lib/lib-build/src/main/cpp/TestLib.idl
+++ b/example/lib/lib-build/src/main/cpp/TestLib.idl
@@ -100,6 +100,7 @@ interface TestMethodClass {
     float getFloatValue02();
     float getBoolValue01();
     [Const, Value] IDLStringView getStrValue01();
+    [Const, Ref] IDLString getRefStrValue01();
     [Const] TestObjectClass getPointerObject01();
     TestObjectClass getPointerObject02();
     [Const, Ref] TestObjectClass getRefObject01();
diff --git a/example/lib/lib-build/src/main/cpp/source/TestLib/src/TestLib.h b/example/lib/lib-build/src/main/cpp/source/TestLib/src/TestLib.h
index 72ba95f..b260366 100644
--- a/example/lib/lib-build/src/main/cpp/source/TestLib/src/TestLib.h
+++ b/example/lib/lib-build/src/main/cpp/source/TestLib/src/TestLib.h
@@ -188,6 +188,7 @@ class TestMethodClass {
         float getFloatValue02() { return floatValue02; };
         bool getBoolValue01() { return boolValue01; };
         const char* getStrValue01() { return strValue01.c_str(); };
+        const string& getRefStrValue01() { return strValue01; };
         const TestObjectClass* getPointerObject01() { return pointerObject01; };
         TestObjectClass* getPointerObject02() { return pointerObject02; };
         const TestObjectClass& getRefObject01() { return refObject01; };