diff --git a/core-java-modules/core-java-annotations/src/main/java/com/baeldung/annotations/ClassWithAnnotation.java b/core-java-modules/core-java-annotations/src/main/java/com/ossez/annotations/ClassWithAnnotation.java
similarity index 100%
rename from core-java-modules/core-java-annotations/src/main/java/com/baeldung/annotations/ClassWithAnnotation.java
rename to core-java-modules/core-java-annotations/src/main/java/com/ossez/annotations/ClassWithAnnotation.java
diff --git a/core-java-modules/core-java-annotations/src/main/java/com/baeldung/annotations/ClassWithDeprecatedMethod.java b/core-java-modules/core-java-annotations/src/main/java/com/ossez/annotations/ClassWithDeprecatedMethod.java
similarity index 100%
rename from core-java-modules/core-java-annotations/src/main/java/com/baeldung/annotations/ClassWithDeprecatedMethod.java
rename to core-java-modules/core-java-annotations/src/main/java/com/ossez/annotations/ClassWithDeprecatedMethod.java
diff --git a/core-java-modules/core-java-annotations/src/main/java/com/baeldung/annotations/ClassWithSafeVarargs.java b/core-java-modules/core-java-annotations/src/main/java/com/ossez/annotations/ClassWithSafeVarargs.java
similarity index 100%
rename from core-java-modules/core-java-annotations/src/main/java/com/baeldung/annotations/ClassWithSafeVarargs.java
rename to core-java-modules/core-java-annotations/src/main/java/com/ossez/annotations/ClassWithSafeVarargs.java
diff --git a/core-java-modules/core-java-annotations/src/main/java/com/baeldung/annotations/ClassWithSuppressWarnings.java b/core-java-modules/core-java-annotations/src/main/java/com/ossez/annotations/ClassWithSuppressWarnings.java
similarity index 100%
rename from core-java-modules/core-java-annotations/src/main/java/com/baeldung/annotations/ClassWithSuppressWarnings.java
rename to core-java-modules/core-java-annotations/src/main/java/com/ossez/annotations/ClassWithSuppressWarnings.java
diff --git a/core-java-modules/core-java-annotations/src/main/java/com/baeldung/annotations/IntConsumer.java b/core-java-modules/core-java-annotations/src/main/java/com/ossez/annotations/IntConsumer.java
similarity index 100%
rename from core-java-modules/core-java-annotations/src/main/java/com/baeldung/annotations/IntConsumer.java
rename to core-java-modules/core-java-annotations/src/main/java/com/ossez/annotations/IntConsumer.java
diff --git a/core-java-modules/core-java-annotations/src/main/java/com/baeldung/annotations/Interval.java b/core-java-modules/core-java-annotations/src/main/java/com/ossez/annotations/Interval.java
similarity index 100%
rename from core-java-modules/core-java-annotations/src/main/java/com/baeldung/annotations/Interval.java
rename to core-java-modules/core-java-annotations/src/main/java/com/ossez/annotations/Interval.java
diff --git a/core-java-modules/core-java-annotations/src/main/java/com/baeldung/annotations/IntervalUsage.java b/core-java-modules/core-java-annotations/src/main/java/com/ossez/annotations/IntervalUsage.java
similarity index 100%
rename from core-java-modules/core-java-annotations/src/main/java/com/baeldung/annotations/IntervalUsage.java
rename to core-java-modules/core-java-annotations/src/main/java/com/ossez/annotations/IntervalUsage.java
diff --git a/core-java-modules/core-java-annotations/src/main/java/com/baeldung/annotations/Intervals.java b/core-java-modules/core-java-annotations/src/main/java/com/ossez/annotations/Intervals.java
similarity index 100%
rename from core-java-modules/core-java-annotations/src/main/java/com/baeldung/annotations/Intervals.java
rename to core-java-modules/core-java-annotations/src/main/java/com/ossez/annotations/Intervals.java
diff --git a/core-java-modules/core-java-annotations/src/main/java/com/baeldung/annotations/MyAnnotation.java b/core-java-modules/core-java-annotations/src/main/java/com/ossez/annotations/MyAnnotation.java
similarity index 100%
rename from core-java-modules/core-java-annotations/src/main/java/com/baeldung/annotations/MyAnnotation.java
rename to core-java-modules/core-java-annotations/src/main/java/com/ossez/annotations/MyAnnotation.java
diff --git a/core-java-modules/core-java-annotations/src/main/java/com/baeldung/annotations/MyAnnotationTarget.java b/core-java-modules/core-java-annotations/src/main/java/com/ossez/annotations/MyAnnotationTarget.java
similarity index 100%
rename from core-java-modules/core-java-annotations/src/main/java/com/baeldung/annotations/MyAnnotationTarget.java
rename to core-java-modules/core-java-annotations/src/main/java/com/ossez/annotations/MyAnnotationTarget.java
diff --git a/core-java-modules/core-java-annotations/src/main/java/com/baeldung/annotations/MyOperation.java b/core-java-modules/core-java-annotations/src/main/java/com/ossez/annotations/MyOperation.java
similarity index 100%
rename from core-java-modules/core-java-annotations/src/main/java/com/baeldung/annotations/MyOperation.java
rename to core-java-modules/core-java-annotations/src/main/java/com/ossez/annotations/MyOperation.java
diff --git a/core-java-modules/core-java-annotations/src/main/java/com/baeldung/annotations/MyOperationImpl.java b/core-java-modules/core-java-annotations/src/main/java/com/ossez/annotations/MyOperationImpl.java
similarity index 100%
rename from core-java-modules/core-java-annotations/src/main/java/com/baeldung/annotations/MyOperationImpl.java
rename to core-java-modules/core-java-annotations/src/main/java/com/ossez/annotations/MyOperationImpl.java
diff --git a/core-java-modules/core-java-annotations/src/main/java/com/baeldung/customannotations/Init.java b/core-java-modules/core-java-annotations/src/main/java/com/ossez/customannotations/Init.java
similarity index 100%
rename from core-java-modules/core-java-annotations/src/main/java/com/baeldung/customannotations/Init.java
rename to core-java-modules/core-java-annotations/src/main/java/com/ossez/customannotations/Init.java
diff --git a/core-java-modules/core-java-annotations/src/main/java/com/baeldung/customannotations/JsonElement.java b/core-java-modules/core-java-annotations/src/main/java/com/ossez/customannotations/JsonElement.java
similarity index 100%
rename from core-java-modules/core-java-annotations/src/main/java/com/baeldung/customannotations/JsonElement.java
rename to core-java-modules/core-java-annotations/src/main/java/com/ossez/customannotations/JsonElement.java
diff --git a/core-java-modules/core-java-annotations/src/main/java/com/baeldung/customannotations/JsonSerializable.java b/core-java-modules/core-java-annotations/src/main/java/com/ossez/customannotations/JsonSerializable.java
similarity index 100%
rename from core-java-modules/core-java-annotations/src/main/java/com/baeldung/customannotations/JsonSerializable.java
rename to core-java-modules/core-java-annotations/src/main/java/com/ossez/customannotations/JsonSerializable.java
diff --git a/core-java-modules/core-java-annotations/src/main/java/com/baeldung/customannotations/JsonSerializationException.java b/core-java-modules/core-java-annotations/src/main/java/com/ossez/customannotations/JsonSerializationException.java
similarity index 100%
rename from core-java-modules/core-java-annotations/src/main/java/com/baeldung/customannotations/JsonSerializationException.java
rename to core-java-modules/core-java-annotations/src/main/java/com/ossez/customannotations/JsonSerializationException.java
diff --git a/core-java-modules/core-java-annotations/src/main/java/com/baeldung/customannotations/ObjectToJsonConverter.java b/core-java-modules/core-java-annotations/src/main/java/com/ossez/customannotations/ObjectToJsonConverter.java
similarity index 100%
rename from core-java-modules/core-java-annotations/src/main/java/com/baeldung/customannotations/ObjectToJsonConverter.java
rename to core-java-modules/core-java-annotations/src/main/java/com/ossez/customannotations/ObjectToJsonConverter.java
diff --git a/core-java-modules/core-java-annotations/src/main/java/com/baeldung/customannotations/Person.java b/core-java-modules/core-java-annotations/src/main/java/com/ossez/customannotations/Person.java
similarity index 100%
rename from core-java-modules/core-java-annotations/src/main/java/com/baeldung/customannotations/Person.java
rename to core-java-modules/core-java-annotations/src/main/java/com/ossez/customannotations/Person.java
diff --git a/core-java-modules/core-java-annotations/src/test/java/com/baeldung/customannotations/JsonSerializerUnitTest.java b/core-java-modules/core-java-annotations/src/test/java/com/ossez/customannotations/JsonSerializerUnitTest.java
similarity index 100%
rename from core-java-modules/core-java-annotations/src/test/java/com/baeldung/customannotations/JsonSerializerUnitTest.java
rename to core-java-modules/core-java-annotations/src/test/java/com/ossez/customannotations/JsonSerializerUnitTest.java