diff --git a/src/test/java/org/apache/commons/lang3/builder/ReflectionToStringBuilderIncludeTest.java b/src/test/java/org/apache/commons/lang3/builder/ReflectionToStringBuilderIncludeTest.java
index f4f2d0a28..fd14d7351 100644
--- a/src/test/java/org/apache/commons/lang3/builder/ReflectionToStringBuilderIncludeTest.java
+++ b/src/test/java/org/apache/commons/lang3/builder/ReflectionToStringBuilderIncludeTest.java
@@ -64,31 +64,31 @@ public class ReflectionToStringBuilderIncludeTest extends AbstractLangTest {
     public void test_toStringDefaultBehavior() {
         final ReflectionToStringBuilder builder = new ReflectionToStringBuilder(new TestFeature());
         final String toString = builder.toString();
-        this.validateAllFieldsPresent(toString);
+        validateAllFieldsPresent(toString);
     }
 
     @Test
     public void test_toStringInclude() {
         final String toString = ReflectionToStringBuilder.toStringInclude(new TestFeature(), SINGLE_FIELD_TO_SHOW);
-        this.validateIncludeFieldsPresent(toString, new String[]{ SINGLE_FIELD_TO_SHOW }, new String[]{ SINGLE_FIELD_VALUE_TO_SHOW });
+        validateIncludeFieldsPresent(toString, new String[]{ SINGLE_FIELD_TO_SHOW }, new String[]{ SINGLE_FIELD_VALUE_TO_SHOW });
     }
 
     @Test
     public void test_toStringIncludeArray() {
         final String toString = ReflectionToStringBuilder.toStringInclude(new TestFeature(), FIELDS_TO_SHOW);
-        this.validateIncludeFieldsPresent(toString, FIELDS_TO_SHOW, FIELDS_VALUES_TO_SHOW);
+        validateIncludeFieldsPresent(toString, FIELDS_TO_SHOW, FIELDS_VALUES_TO_SHOW);
     }
 
     @Test
     public void test_toStringIncludeArrayWithNull() {
         final String toString = ReflectionToStringBuilder.toStringInclude(new TestFeature(), new String[]{null});
-        this.validateAllFieldsPresent(toString);
+        validateAllFieldsPresent(toString);
     }
 
     @Test
     public void test_toStringIncludeArrayWithNulls() {
         final String toString = ReflectionToStringBuilder.toStringInclude(new TestFeature(), null, null);
-        this.validateAllFieldsPresent(toString);
+        validateAllFieldsPresent(toString);
     }
 
     @Test
@@ -96,7 +96,7 @@ public class ReflectionToStringBuilderIncludeTest extends AbstractLangTest {
         final List<String> includeList = new ArrayList<>();
         includeList.add(SINGLE_FIELD_TO_SHOW);
         final String toString = ReflectionToStringBuilder.toStringInclude(new TestFeature(), includeList);
-        this.validateIncludeFieldsPresent(toString, new String[]{ SINGLE_FIELD_TO_SHOW }, new String[]{ SINGLE_FIELD_VALUE_TO_SHOW });
+        validateIncludeFieldsPresent(toString, new String[]{ SINGLE_FIELD_TO_SHOW }, new String[]{ SINGLE_FIELD_VALUE_TO_SHOW });
     }
 
     @Test
@@ -104,7 +104,7 @@ public class ReflectionToStringBuilderIncludeTest extends AbstractLangTest {
         final List<String> includeList = new ArrayList<>();
         includeList.add(null);
         final String toString = ReflectionToStringBuilder.toStringInclude(new TestFeature(), includeList);
-        this.validateAllFieldsPresent(toString);
+        validateAllFieldsPresent(toString);
     }
 
     @Test
@@ -113,43 +113,43 @@ public class ReflectionToStringBuilderIncludeTest extends AbstractLangTest {
         includeList.add(null);
         includeList.add(null);
         final String toString = ReflectionToStringBuilder.toStringInclude(new TestFeature(), includeList);
-        this.validateAllFieldsPresent(toString);
+        validateAllFieldsPresent(toString);
     }
 
     @Test
     public void test_toStringIncludeEmptyArray() {
         final String toString = ReflectionToStringBuilder.toStringInclude(new TestFeature(), ArrayUtils.EMPTY_STRING_ARRAY);
-        this.validateAllFieldsPresent(toString);
+        validateAllFieldsPresent(toString);
     }
 
     @Test
     public void test_toStringIncludeEmptyCollection() {
         final String toString = ReflectionToStringBuilder.toStringInclude(new TestFeature(), new ArrayList<>());
-        this.validateAllFieldsPresent(toString);
+        validateAllFieldsPresent(toString);
     }
 
     @Test
     public void test_toStringIncludeNullArray() {
         final String toString = ReflectionToStringBuilder.toStringInclude(new TestFeature(), (String[]) null);
-        this.validateAllFieldsPresent(toString);
+        validateAllFieldsPresent(toString);
     }
 
     @Test
     public void test_toStringIncludeNullArrayMultiplesValues() {
         final String toString = ReflectionToStringBuilder.toStringInclude(new TestFeature(), null, null, null, null);
-        this.validateAllFieldsPresent(toString);
+        validateAllFieldsPresent(toString);
     }
 
     @Test
     public void test_toStringIncludeNullCollection() {
         final String toString = ReflectionToStringBuilder.toStringInclude(new TestFeature(), (Collection<String>) null);
-        this.validateAllFieldsPresent(toString);
+        validateAllFieldsPresent(toString);
     }
 
     @Test
     public void test_toStringIncludeWithoutInformingFields() {
         final String toString = ReflectionToStringBuilder.toStringInclude(new TestFeature());
-        this.validateAllFieldsPresent(toString);
+        validateAllFieldsPresent(toString);
     }
 
     @Test
@@ -168,7 +168,7 @@ public class ReflectionToStringBuilderIncludeTest extends AbstractLangTest {
         builder.setExcludeFieldNames(FIELDS[1], FIELDS[4]);
         builder.setIncludeFieldNames(FIELDS_TO_SHOW);
         final String toString = builder.toString();
-        this.validateIncludeFieldsPresent(toString, FIELDS_TO_SHOW, FIELDS_VALUES_TO_SHOW);
+        validateIncludeFieldsPresent(toString, FIELDS_TO_SHOW, FIELDS_VALUES_TO_SHOW);
     }
 
     @Test
@@ -187,7 +187,7 @@ public class ReflectionToStringBuilderIncludeTest extends AbstractLangTest {
         builder.setExcludeFieldNames(FIELDS[1], "random1");
         builder.setIncludeFieldNames("random2", FIELDS[2]);
         final String toString = builder.toString();
-        this.validateIncludeFieldsPresent(toString, new String[]{FIELDS[2]}, new String[]{VALUES[2]});
+        validateIncludeFieldsPresent(toString, new String[]{FIELDS[2]}, new String[]{VALUES[2]});
     }
 
     @Test
@@ -196,7 +196,7 @@ public class ReflectionToStringBuilderIncludeTest extends AbstractLangTest {
         builder.setExcludeFieldNames(FIELDS[1], FIELDS[4]);
         builder.setIncludeFieldNames(null, null, null);
         final String toString = builder.toString();
-        this.validateIncludeFieldsPresent(toString, new String[]{FIELDS[0], FIELDS[2], FIELDS[3]}, new String[]{VALUES[0], VALUES[2], VALUES[3]});
+        validateIncludeFieldsPresent(toString, new String[]{FIELDS[0], FIELDS[2], FIELDS[3]}, new String[]{VALUES[0], VALUES[2], VALUES[3]});
     }
 
     @Test
@@ -205,7 +205,7 @@ public class ReflectionToStringBuilderIncludeTest extends AbstractLangTest {
         builder.setExcludeFieldNames(FIELDS[1], FIELDS[4]);
         builder.setIncludeFieldNames(null, null, null);
         final String toString = builder.toString();
-        this.validateIncludeFieldsPresent(toString, new String[]{FIELDS[0], FIELDS[2], FIELDS[3]}, new String[]{VALUES[0], VALUES[2], VALUES[3]});
+        validateIncludeFieldsPresent(toString, new String[]{FIELDS[0], FIELDS[2], FIELDS[3]}, new String[]{VALUES[0], VALUES[2], VALUES[3]});
     }
 
     private void validateAllFieldsPresent(final String toString) {
@@ -221,7 +221,7 @@ public class ReflectionToStringBuilderIncludeTest extends AbstractLangTest {
             assertTrue(toString.indexOf(includeValue) > 0);
         }
 
-        this.validateNonIncludeFieldsAbsent(toString, fieldsToShow, valuesToShow);
+        validateNonIncludeFieldsAbsent(toString, fieldsToShow, valuesToShow);
     }
 
     private void validateNonIncludeFieldsAbsent(final String toString, final String[] IncludeFields, final String[] IncludeFieldsValues) {