diff --git a/core-java-modules/core-java-collections-maps-6/src/test/java/com/baeldung/maptojson/MapToJsonUnitTest.java b/core-java-modules/core-java-collections-maps-6/src/test/java/com/baeldung/maptojson/MapToJsonUnitTest.java
index d9b13f4f4a..d9c3ac57ff 100644
--- a/core-java-modules/core-java-collections-maps-6/src/test/java/com/baeldung/maptojson/MapToJsonUnitTest.java
+++ b/core-java-modules/core-java-collections-maps-6/src/test/java/com/baeldung/maptojson/MapToJsonUnitTest.java
@@ -17,40 +17,40 @@ import java.util.HashMap;
 import java.util.Map;
 
 public class MapToJsonUnitTest {
-String originalJsonData = "{\"CS\":\"Post1\",\"Linux\":\"Post1\",\"Kotlin\":\"Post1\"}";
+    String originalJsonData = "{\"CS\":\"Post1\",\"Linux\":\"Post1\",\"Kotlin\":\"Post1\"}";
 
-@Test
-public void given_HashMapData_whenUsingJackson_thenConvertToJson() throws JsonProcessingException {
-    Map<String, String> data = new HashMap();
-    data.put("CS", "Post1");
-    data.put("Linux", "Post1");
-    data.put("Kotlin", "Post1");
-    ObjectMapper objectMapper = new ObjectMapper();
-    String jacksonData = objectMapper.writeValueAsString(data);
-    Assertions.assertEquals(jacksonData,originalJsonData);
-}
+    @Test
+    public void given_HashMapData_whenUsingJackson_thenConvertToJson() throws JsonProcessingException {
+        Map<String, String> data = new HashMap();
+        data.put("CS", "Post1");
+        data.put("Linux", "Post1");
+        data.put("Kotlin", "Post1");
+        ObjectMapper objectMapper = new ObjectMapper();
+        String jacksonData = objectMapper.writeValueAsString(data);
+        Assertions.assertEquals(originalJsonData,jacksonData);
+    }
 
-@Test
-public void given_HashMapData_whenUsingGson_thenConvertToJson() {
-    Map<String, String> data = new HashMap<>();
-    data.put("CS", "Post1");
-    data.put("Linux", "Post1");
-    data.put("Kotlin", "Post1");
-    Gson gson = new Gson();
-    Type typeObject = new TypeToken<HashMap>() {
-    }.getType();
-    String gsonData = gson.toJson(data, typeObject);
-    Assertions.assertEquals(gsonData,originalJsonData);
-}
+    @Test
+    public void given_HashMapData_whenUsingGson_thenConvertToJson() {
+        Map<String, String> data = new HashMap<>();
+        data.put("CS", "Post1");
+        data.put("Linux", "Post1");
+        data.put("Kotlin", "Post1");
+        Gson gson = new Gson();
+        Type typeObject = new TypeToken<HashMap>() {
+        }.getType();
+        String gsonData = gson.toJson(data, typeObject);
+        Assertions.assertEquals(originalJsonData,gsonData);
+    }
 
-@Test
-public void given_HashMapData_whenOrgJson_thenConvertToJsonUsing() {
-    Map<String, String> data = new HashMap<>();
-    data.put("CS", "Post1");
-    data.put("Linux", "Post1");
-    data.put("Kotlin", "Post1");
-    JSONObject jsonObject = new JSONObject(data);
-    String orgJsonData = jsonObject.toString();
-    Assertions.assertEquals(orgJsonData,originalJsonData);
-}
+    @Test
+    public void given_HashMapData_whenOrgJson_thenConvertToJsonUsing() {
+        Map<String, String> data = new HashMap<>();
+        data.put("CS", "Post1");
+        data.put("Linux", "Post1");
+        data.put("Kotlin", "Post1");
+        JSONObject jsonObject = new JSONObject(data);
+        String orgJsonData = jsonObject.toString();
+        Assertions.assertEquals(originalJsonData,orgJsonData);
+    }
 }
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