diff --git a/core-java-modules/core-java-string-operations-2/src/main/java/com/baeldung/trim/LTrimRTrim.java b/core-java-modules/core-java-string-operations-2/src/main/java/com/baeldung/trim/LTrimRTrim.java
index d1c51b492e..af46f426d8 100644
--- a/core-java-modules/core-java-string-operations-2/src/main/java/com/baeldung/trim/LTrimRTrim.java
+++ b/core-java-modules/core-java-string-operations-2/src/main/java/com/baeldung/trim/LTrimRTrim.java
@@ -102,38 +102,20 @@ public class LTrimRTrim {
         return checkStrings(ltrim, rtrim);
     }
 
-    public static String guavaLtrim(String s) {
-        return CharMatcher.whitespace()
-            .trimLeadingFrom(s);
-    }
-
-    public static String guavaRtrim(String s) {
-        return CharMatcher.whitespace()
-            .trimTrailingFrom(s);
-    }
-
     // Guava CharMatcher trimLeadingFrom / trimTrailingFrom
     @Benchmark
     public boolean guavaCharMatcher() {
-        String ltrim = guavaLtrim(src);
-        String rtrim = guavaRtrim(src);
+        String ltrim = CharMatcher.whitespace().trimLeadingFrom(src);
+        String rtrim = CharMatcher.whitespace().trimTrailingFrom(src);
 
         return checkStrings(ltrim, rtrim);
     }
 
-    public static String stringUtilsRTrim(String str) {
-        return org.apache.commons.lang3.StringUtils.stripEnd(str, " ");
-    }
-
-    public static String stringUtilsLTrim(String str) {
-        return org.apache.commons.lang3.StringUtils.stripStart(str, " ");
-    }
-
     // Apache Commons StringUtils containsIgnoreCase
     @Benchmark
     public boolean apacheCommonsStringUtils() {
-        String ltrim = stringUtilsLTrim(src);
-        String rtrim = stringUtilsRTrim(src);
+        String ltrim = org.apache.commons.lang3.StringUtils.stripStart(src, " ");
+        String rtrim = org.apache.commons.lang3.StringUtils.stripEnd(src, " ");
 
         return checkStrings(ltrim, rtrim);
     }
diff --git a/core-java-modules/core-java-string-operations-2/src/test/java/com/baeldung/trim/LTrimRTrimUnitTest.java b/core-java-modules/core-java-string-operations-2/src/test/java/com/baeldung/trim/LTrimRTrimUnitTest.java
index 4da35909f7..18c8608455 100644
--- a/core-java-modules/core-java-string-operations-2/src/test/java/com/baeldung/trim/LTrimRTrimUnitTest.java
+++ b/core-java-modules/core-java-string-operations-2/src/test/java/com/baeldung/trim/LTrimRTrimUnitTest.java
@@ -4,6 +4,8 @@ import org.apache.commons.lang3.StringUtils;
 import org.junit.Assert;
 import org.junit.Test;
 
+import com.google.common.base.CharMatcher;
+
 import java.util.regex.Pattern;
 
 /**
@@ -53,8 +55,8 @@ public class LTrimRTrimUnitTest {
     @Test
     public void givenString_whenCallingGuavaCharMatcher_thenReturnsTrue() {
         // Use StringUtils containsIgnoreCase to avoid case insensitive issues
-        String ltrim = LTrimRTrim.guavaLtrim(src);
-        String rtrim = LTrimRTrim.guavaRtrim(src);
+        String ltrim = CharMatcher.whitespace().trimLeadingFrom(src);;
+        String rtrim = CharMatcher.whitespace().trimTrailingFrom(src);
 
         // Compare the Strings obtained and the expected
         Assert.assertTrue(ltrimResult.equalsIgnoreCase(ltrim));
@@ -65,8 +67,8 @@ public class LTrimRTrimUnitTest {
     @Test
     public void givenString_whenCallingStringUtilsStripStartEnd_thenReturnsTrue() {
         // Use StringUtils containsIgnoreCase to avoid case insensitive issues
-        String ltrim = LTrimRTrim.stringUtilsLTrim(src);
-        String rtrim = LTrimRTrim.stringUtilsRTrim(src);
+        String ltrim = org.apache.commons.lang3.StringUtils.stripStart(src, " ");
+        String rtrim = org.apache.commons.lang3.StringUtils.stripEnd(src, " ");
 
         // Compare the Strings obtained and the expected
         Assert.assertTrue(ltrimResult.equalsIgnoreCase(ltrim));