diff --git a/core-java-modules/core-java-regex-2/pom.xml b/core-java-modules/core-java-regex-2/pom.xml
new file mode 100644
index 0000000000..45e19ba5a5
--- /dev/null
+++ b/core-java-modules/core-java-regex-2/pom.xml
@@ -0,0 +1,31 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns="http://maven.apache.org/POM/4.0.0"
+    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+    <artifactId>core-java-regex-2</artifactId>
+    <version>0.1.0-SNAPSHOT</version>
+    <name>core-java-regex-2</name>
+    <packaging>jar</packaging>
+
+    <parent>
+        <groupId>com.baeldung.core-java-modules</groupId>
+        <artifactId>core-java-modules</artifactId>
+        <version>0.0.1-SNAPSHOT</version>
+        <relativePath>../</relativePath>
+    </parent>
+
+    <dependencies>
+        <dependency>
+            <groupId>org.assertj</groupId>
+            <artifactId>assertj-core</artifactId>
+            <version>${assertj-core.version}</version>
+            <scope>test</scope>
+        </dependency>
+    </dependencies>
+
+    <properties>
+        <assertj-core.version>3.15.0</assertj-core.version>
+    </properties>
+
+</project>
diff --git a/core-java-modules/core-java-regex-2/src/test/java/com/baeldung/regex/noncapturinggroups/NonCapturingGroupUnitTest.java b/core-java-modules/core-java-regex-2/src/test/java/com/baeldung/regex/noncapturinggroups/NonCapturingGroupUnitTest.java
new file mode 100644
index 0000000000..281a550f34
--- /dev/null
+++ b/core-java-modules/core-java-regex-2/src/test/java/com/baeldung/regex/noncapturinggroups/NonCapturingGroupUnitTest.java
@@ -0,0 +1,119 @@
+package com.baeldung.regex.noncapturinggroups;
+
+import org.assertj.core.api.Assertions;
+import org.junit.jupiter.api.Test;
+
+import java.util.regex.Matcher;
+import java.util.regex.Pattern;
+
+public class NonCapturingGroupUnitTest {
+
+    private static final Pattern SIMPLE_URL_PATTERN = Pattern.compile("[^:]+://(?:[.a-z]+/?)+");
+    private static final Pattern SCOPED_CASE_INSENSITIVE_URL_PATTERN = Pattern.compile("[^:]+://(?i:[.a-z]+/?)+");
+    private static final Pattern SIMPLE_URL_PATTERN_WITH_SPECIFIC_ENDING_PATH = Pattern.compile("[^:]+://(?:[.a-z]+/?)+?/ending-path");
+    private static final Pattern SCOPED_CASE_INSENSTIIVE_URL_PATTERN_WITH_ENDING_PATH = Pattern.compile("[^:]://(?i:[.a-z]+/?)+?/ending-path");
+    private static final Pattern CASE_INSENSITIVE_URL_PATTERN = Pattern.compile("[^:]+://(?:[.a-z]+/?)+?(/ending-path)", Pattern.CASE_INSENSITIVE);
+    private static final Pattern SCOPED_CASE_SENSITIVE_URL_PATTERN = Pattern.compile("[^:]+://(?-i:[.a-z]+/?)+?(/ending-path)", Pattern.CASE_INSENSITIVE);
+    private static final Pattern INDEPENDENT_URL_PATTERN_WITH_ENDING_PATH = Pattern.compile("[^:]+://(?>[.a-z]+/?)+/ending-path");
+    private static final Pattern INDEPENDENT_URL_PATTERN_WITH_ENDING_PATH_AND_BACKTRACKING = Pattern.compile("[^:]+://(?>(?:[.a-z]+/?)+/)ending-path");
+
+    @Test
+    void givenSimpleUrlPattern_whenValidUrlProvided_thenMatches() {
+        Matcher urlMatcher = SIMPLE_URL_PATTERN.matcher("http://www.microsoft.com/");
+        
+        Assertions.assertThat(urlMatcher.matches()).isTrue();
+        Assertions.assertThatThrownBy(() -> urlMatcher.group(1)).isInstanceOf(IndexOutOfBoundsException.class);
+    }
+
+    @Test
+    void whenSimpleUrlProvidedWithPathProvided_thenMatches() {
+        Matcher urlMatcher = SIMPLE_URL_PATTERN.matcher("http://www.microsoft.com/live");
+        
+        Assertions.assertThat(urlMatcher.matches()).isTrue();
+    }
+
+    @Test
+    void whenSimpleUrlProvidedWithPathEndingWithSlashProvided_thenMatches() {
+        Matcher urlMatcher = SIMPLE_URL_PATTERN.matcher("http://www.microsoft.com/live/");
+        
+        Assertions.assertThat(urlMatcher.matches()).isTrue();
+    }
+
+    @Test
+    void givenSimpleUrlPattern_whenUrlWithMultiplePathSegmentsProvided_thenMatches() {
+        Matcher urlMatcher = SIMPLE_URL_PATTERN.matcher("http://www.microsoft.com/some/other/url/path");
+        
+        Assertions.assertThat(urlMatcher.matches()).isTrue();
+    }
+
+    @Test
+    void whenUrlWithUppercaseCharactersProvided_thenDoesNotMatch() {
+        Matcher urlMatcher = SIMPLE_URL_PATTERN.matcher("http://www.Microsoft.com/");
+        
+        Assertions.assertThat(urlMatcher.matches()).isFalse();
+    }
+
+    @Test
+    void givenPatternWithCaseInsensitiveGroup_whenUrlHasUppercaseCharactersInsideOfScope_thenMatches() {
+        Matcher urlMatcher = SCOPED_CASE_INSENSITIVE_URL_PATTERN.matcher("http://www.Microsoft.com/");
+        
+        Assertions.assertThat(urlMatcher.matches()).isTrue();
+    }
+
+    @Test
+    void givenCaseInsensitivePattern_whenUrlHasUppercaseCharacters_thenMatches() {
+        Matcher urlMatcher = CASE_INSENSITIVE_URL_PATTERN.matcher("http://www.Microsoft.com/Ending-path");
+        
+        Assertions.assertThat(urlMatcher.matches()).isTrue();
+        Assertions.assertThat(urlMatcher.group(1)).isEqualTo("/Ending-path");
+    }
+
+    @Test
+    void givenPatternWithCaseInsensitiveGroup_whenUrlHasUppercaseCharactersOutsideOfScope_thenMatchFails() {
+        Matcher urlMatcher = SCOPED_CASE_INSENSTIIVE_URL_PATTERN_WITH_ENDING_PATH.matcher("http://www.Microsoft.com/Ending-path");
+        
+        Assertions.assertThat(urlMatcher.matches()).isFalse();
+    }
+
+    @Test
+    void givenPatternAllowingBacktracking_whenUrlWithEndingPathCausingBacktrackingProvided_thenMatches() {
+        Matcher urlMatcher = SIMPLE_URL_PATTERN_WITH_SPECIFIC_ENDING_PATH.matcher("http://www.microsoft.com/ending-path");
+        
+        Assertions.assertThat(urlMatcher.matches()).isTrue();
+    }
+
+    @Test
+    void givenPatternWithIndependentNonCapturingGroup_whenBacktrackingOccurs_thenDoesNotMatch() {
+        Matcher independentMatcher = INDEPENDENT_URL_PATTERN_WITH_ENDING_PATH.matcher("http://www.microsoft.com/ending-path");
+        
+        Assertions.assertThat(independentMatcher.matches()).isFalse();
+    }
+
+    @Test
+    void givenPatternWithIndependentNonCapturingGroup_whenBacktrackingDoesNotOccur_thenMatches() {
+        Matcher independentMatcher = INDEPENDENT_URL_PATTERN_WITH_ENDING_PATH.matcher("http://www.microsoft.com//ending-path");
+        
+        Assertions.assertThat(independentMatcher.matches()).isTrue();
+    }
+
+    @Test
+    void givenPatternWithIndependentNonCapturingGroup_whenBacktrackingOccursInsideGroup_thenMatches() {
+        Matcher independentMatcher = INDEPENDENT_URL_PATTERN_WITH_ENDING_PATH_AND_BACKTRACKING.matcher("http://www.microsoft.com/ending-path");
+        
+        Assertions.assertThat(independentMatcher.matches()).isTrue();
+    }
+
+    @Test
+    void givenCaseInsensitivePatternWithCaseSensitivieSubPattern_whenUrlWithUppercaseCharactersOutsideOfScopeProvided_thenMatches() {
+        Matcher urlMatcher = SCOPED_CASE_SENSITIVE_URL_PATTERN.matcher("http://www.microsoft.com/ENDING-PATH");
+        
+        Assertions.assertThat(urlMatcher.matches()).isTrue();
+    }
+
+    @Test
+    void givenCaseInsensitivePatternWithCaseSensitivieSubPattern_whenUrlWithUppercaseCharactersInsideOfScopeProvided_thenDoesNotMatch() {
+        Matcher urlMatcher = SCOPED_CASE_SENSITIVE_URL_PATTERN.matcher("http://www.Microsoft.com/ending-path");
+        
+        Assertions.assertThat(urlMatcher.matches()).isFalse();
+    }
+}
diff --git a/core-java-modules/pom.xml b/core-java-modules/pom.xml
index 4b80e7f0ed..8661f1ba01 100644
--- a/core-java-modules/pom.xml
+++ b/core-java-modules/pom.xml
@@ -113,6 +113,7 @@
         <module>core-java-string-operations-2</module>
         <module>core-java-sun</module>
         <module>core-java-regex</module>
+        <module>core-java-regex-2</module>
         <module>pre-jpms</module>
     </modules>
 
@@ -137,4 +138,4 @@
         <maven-surefire-plugin.version>2.22.2</maven-surefire-plugin.version>
         <junit-jupiter.version>5.6.2</junit-jupiter.version>
     </properties>
-</project>
\ No newline at end of file
+</project>