diff --git a/json-2/src/test/java/com/baeldung/jsonld/deserialization/jsonldjava/jackson/JacksonDeserializationUnitTest.java b/json-2/src/test/java/com/baeldung/jsonld/deserialization/jsonldjava/jackson/JacksonDeserializationUnitTest.java
index 35a2613957..df09a98f76 100644
--- a/json-2/src/test/java/com/baeldung/jsonld/deserialization/jsonldjava/jackson/JacksonDeserializationUnitTest.java
+++ b/json-2/src/test/java/com/baeldung/jsonld/deserialization/jsonldjava/jackson/JacksonDeserializationUnitTest.java
@@ -16,11 +16,11 @@ import com.github.jsonldjava.utils.JsonUtils;
 public class JacksonDeserializationUnitTest {
 
     @Test
-    void givenAJsonLdObject_whenCompactIsUsedWithEmptyContext_thenItCanBeDeserializedIntoAJacksonAnnotatedJavaObject() throws IOException {
+    void givenAJsonLdObject_whenCompactIsUsedWithEmptyContext_thenItCanBeDeserializedWithJackson() throws IOException {
         String inputJsonLd = "{\"@context\":{\"@vocab\":\"http://schema.org/\",\"knows\":{\"@type\":\"@id\"}},\"@type\":\"Person\",\"@id\":\"http://example.com/person/1234\",\"name\":\"Example Name\",\"knows\":\"http://example.com/person/2345\"}";
 
         Object jsonObject = JsonUtils.fromString(inputJsonLd);
-        Object compact = JsonLdProcessor.compact(jsonObject, new HashMap(), new JsonLdOptions());
+        Object compact = JsonLdProcessor.compact(jsonObject, new HashMap<>(), new JsonLdOptions());
         String compactContent = JsonUtils.toString(compact);
 
         assertEquals("{\"@id\":\"http://example.com/person/1234\",\"@type\":\"http://schema.org/Person\",\"http://schema.org/knows\":{\"@id\":\"http://example.com/person/2345\"},\"http://schema.org/name\":\"Example Name\"}", compactContent);
diff --git a/json-2/src/test/java/com/baeldung/jsonld/serialization/hydrajsonld/HydraJsonldSerializationUnitTest.java b/json-2/src/test/java/com/baeldung/jsonld/serialization/hydrajsonld/HydraJsonldSerializationUnitTest.java
index e5d1e35236..308987a0bd 100644
--- a/json-2/src/test/java/com/baeldung/jsonld/serialization/hydrajsonld/HydraJsonldSerializationUnitTest.java
+++ b/json-2/src/test/java/com/baeldung/jsonld/serialization/hydrajsonld/HydraJsonldSerializationUnitTest.java
@@ -5,7 +5,6 @@ import static org.junit.jupiter.api.Assertions.assertEquals;
 import org.junit.jupiter.api.Test;
 
 import com.fasterxml.jackson.annotation.JsonInclude;
-import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.core.JsonProcessingException;
 import com.fasterxml.jackson.databind.BeanDescription;
 import com.fasterxml.jackson.databind.JsonSerializer;
@@ -15,20 +14,9 @@ import com.fasterxml.jackson.databind.module.SimpleModule;
 import com.fasterxml.jackson.databind.ser.BeanSerializerModifier;
 import com.fasterxml.jackson.databind.ser.std.BeanSerializerBase;
 
-import de.escalon.hypermedia.hydra.mapping.Expose;
-import de.escalon.hypermedia.hydra.mapping.Vocab;
 import de.escalon.hypermedia.hydra.serialize.JacksonHydraSerializer;
 
 public class HydraJsonldSerializationUnitTest {
-    @Vocab("http://example.com/vocab/")
-    @Expose("person")
-    static class Person {
-        @JsonProperty("@id")
-        public String id;
-        @Expose("fullName")
-        public String name;
-    }
-
     @Test
     void givenAHydraJsonldAnnotatedObject_whenJacksonHydraSerializerIsUsed_thenAJsonLdDocumentIsGenerated() throws JsonProcessingException {
         ObjectMapper objectMapper = new ObjectMapper();
diff --git a/json-2/src/test/java/com/baeldung/jsonld/serialization/hydrajsonld/Person.java b/json-2/src/test/java/com/baeldung/jsonld/serialization/hydrajsonld/Person.java
new file mode 100644
index 0000000000..87587d02ac
--- /dev/null
+++ b/json-2/src/test/java/com/baeldung/jsonld/serialization/hydrajsonld/Person.java
@@ -0,0 +1,15 @@
+package com.baeldung.jsonld.serialization.hydrajsonld;
+
+import com.fasterxml.jackson.annotation.JsonProperty;
+
+import de.escalon.hypermedia.hydra.mapping.Expose;
+import de.escalon.hypermedia.hydra.mapping.Vocab;
+
+@Vocab("http://example.com/vocab/")
+@Expose("person")
+public class Person {
+    @JsonProperty("@id")
+    public String id;
+    @Expose("fullName")
+    public String name;
+}
diff --git a/json-2/src/test/java/com/baeldung/jsonld/serialization/jacksonjsonld/JacksonJsonLdSerializationUnitTest.java b/json-2/src/test/java/com/baeldung/jsonld/serialization/jacksonjsonld/JacksonJsonLdSerializationUnitTest.java
index b539c73608..07e44b4981 100644
--- a/json-2/src/test/java/com/baeldung/jsonld/serialization/jacksonjsonld/JacksonJsonLdSerializationUnitTest.java
+++ b/json-2/src/test/java/com/baeldung/jsonld/serialization/jacksonjsonld/JacksonJsonLdSerializationUnitTest.java
@@ -8,25 +8,8 @@ import com.fasterxml.jackson.core.JsonProcessingException;
 import com.fasterxml.jackson.databind.ObjectMapper;
 
 import ioinformarics.oss.jackson.module.jsonld.JsonldModule;
-import ioinformarics.oss.jackson.module.jsonld.annotation.JsonldId;
-import ioinformarics.oss.jackson.module.jsonld.annotation.JsonldLink;
-import ioinformarics.oss.jackson.module.jsonld.annotation.JsonldNamespace;
-import ioinformarics.oss.jackson.module.jsonld.annotation.JsonldProperty;
-import ioinformarics.oss.jackson.module.jsonld.annotation.JsonldResource;
-import ioinformarics.oss.jackson.module.jsonld.annotation.JsonldType;
 
 public class JacksonJsonLdSerializationUnitTest {
-    @JsonldResource
-    @JsonldNamespace(name = "s", uri = "http://schema.org/")
-    @JsonldType("s:Person")
-    @JsonldLink(rel = "s:knows", name = "knows", href = "http://example.com/person/2345")
-    static class Person {
-        @JsonldId
-        public String id = "http://example.com/person/1234";
-        @JsonldProperty("s:name")
-        public String name = "Example Name";
-    }
-
     @Test
     void givenAJacksonJsonldAnnotatedObject_whenJsonldModuleIsUsed_thenAJsonLdDocumentIsGenerated() throws JsonProcessingException {
         ObjectMapper objectMapper = new ObjectMapper();
diff --git a/json-2/src/test/java/com/baeldung/jsonld/serialization/jacksonjsonld/Person.java b/json-2/src/test/java/com/baeldung/jsonld/serialization/jacksonjsonld/Person.java
new file mode 100644
index 0000000000..d0c9e4f111
--- /dev/null
+++ b/json-2/src/test/java/com/baeldung/jsonld/serialization/jacksonjsonld/Person.java
@@ -0,0 +1,19 @@
+package com.baeldung.jsonld.serialization.jacksonjsonld;
+
+import ioinformarics.oss.jackson.module.jsonld.annotation.JsonldId;
+import ioinformarics.oss.jackson.module.jsonld.annotation.JsonldLink;
+import ioinformarics.oss.jackson.module.jsonld.annotation.JsonldNamespace;
+import ioinformarics.oss.jackson.module.jsonld.annotation.JsonldProperty;
+import ioinformarics.oss.jackson.module.jsonld.annotation.JsonldResource;
+import ioinformarics.oss.jackson.module.jsonld.annotation.JsonldType;
+
+@JsonldResource
+@JsonldNamespace(name = "s", uri = "http://schema.org/")
+@JsonldType("s:Person")
+@JsonldLink(rel = "s:knows", name = "knows", href = "http://example.com/person/2345")
+public class Person {
+    @JsonldId
+    public String id = "http://example.com/person/1234";
+    @JsonldProperty("s:name")
+    public String name = "Example Name";
+}