diff --git a/core-java-modules/core-java/src/test/java/com/baeldung/exceptions/RootCauseFinderTest.java b/core-java-modules/core-java/src/test/java/com/baeldung/exceptions/RootCauseFinderTest.java
deleted file mode 100644
index cfac81b812..0000000000
--- a/core-java-modules/core-java/src/test/java/com/baeldung/exceptions/RootCauseFinderTest.java
+++ /dev/null
@@ -1,96 +0,0 @@
-package com.baeldung.exceptions;
-
-import com.google.common.base.Throwables;
-import org.apache.commons.lang3.exception.ExceptionUtils;
-import org.junit.jupiter.api.Assertions;
-import org.junit.jupiter.api.Test;
-
-import java.time.LocalDate;
-import java.time.format.DateTimeParseException;
-import java.time.temporal.ChronoUnit;
-
-import static com.baeldung.exceptions.RootCauseFinder.*;
-import static org.junit.jupiter.api.Assertions.assertTrue;
-
-/**
- * Tests the {@link RootCauseFinder}.
- */
-public class RootCauseFinderTest {
-
-    @Test
-    public void givenBirthDate_whenCalculatingAge_thenAgeReturned() {
-        try {
-            int age = AgeCalculator.calculateAge("1990-01-01");
-            Assertions.assertEquals(1990, LocalDate
-              .now()
-              .minus(age, ChronoUnit.YEARS)
-              .getYear());
-        } catch (CalculationException e) {
-            Assertions.fail(e.getMessage());
-        }
-    }
-
-    @Test
-    public void givenWrongFormatDate_whenFindingRootCauseUsingJava_thenRootCauseFound() {
-        try {
-            AgeCalculator.calculateAge("010102");
-        } catch (CalculationException ex) {
-            assertTrue(findCauseUsingPlainJava(ex) instanceof DateTimeParseException);
-        }
-    }
-
-    @Test
-    public void givenOutOfRangeDate_whenFindingRootCauseUsingJava_thenRootCauseFound() {
-        try {
-            AgeCalculator.calculateAge("2020-04-04");
-        } catch (CalculationException ex) {
-            assertTrue(findCauseUsingPlainJava(ex) instanceof DateOutOfRangeException);
-        }
-    }
-
-    @Test
-    public void givenNullDate_whenFindingRootCauseUsingJava_thenRootCauseFound() {
-        try {
-            AgeCalculator.calculateAge(null);
-        } catch (Exception ex) {
-            assertTrue(findCauseUsingPlainJava(ex) instanceof IllegalArgumentException);
-        }
-    }
-
-    @Test
-    public void givenWrongFormatDate_whenFindingRootCauseUsingApacheCommons_thenRootCauseFound() {
-        try {
-            AgeCalculator.calculateAge("010102");
-        } catch (CalculationException ex) {
-            assertTrue(ExceptionUtils.getRootCause(ex) instanceof DateTimeParseException);
-        }
-    }
-
-    @Test
-    public void givenOutOfRangeDate_whenFindingRootCauseUsingApacheCommons_thenRootCauseFound() {
-        try {
-            AgeCalculator.calculateAge("2020-04-04");
-        } catch (CalculationException ex) {
-            assertTrue(ExceptionUtils.getRootCause(ex) instanceof DateOutOfRangeException);
-        }
-    }
-
-    @Test
-    public void givenWrongFormatDate_whenFindingRootCauseUsingGuava_thenRootCauseFound() {
-        try {
-            AgeCalculator.calculateAge("010102");
-        } catch (CalculationException ex) {
-            assertTrue(Throwables.getRootCause(ex) instanceof DateTimeParseException);
-        }
-    }
-
-    @Test
-    public void givenOutOfRangeDate_whenFindingRootCauseUsingGuava_thenRootCauseFound() {
-        try {
-            AgeCalculator.calculateAge("2020-04-04");
-        } catch (CalculationException ex) {
-            assertTrue(Throwables.getRootCause(ex) instanceof DateOutOfRangeException);
-        }
-    }
-
-}