diff --git a/pom.xml b/pom.xml
index eeda18d..8fa7187 100644
--- a/pom.xml
+++ b/pom.xml
@@ -56,7 +56,7 @@
     <sonar.projectKey>${project.sonar.root.projectKey}</sonar.projectKey>
     <sonar.sources>src/main/java</sonar.sources>
     <sonar.tests>src/test/java</sonar.tests>
-    <sonar.links.homepage>https://cookiecode.dev/oss_projects/StyleSniffer</sonar.links.homepage>
+    <sonar.links.homepage>https://stylesniffer.cookiecode.dev/</sonar.links.homepage>
     <sonar.links.scm>https://github.com/sebastienvermeille/StyleSniffer</sonar.links.scm>
 
     <!-- dependencies versions -->
diff --git a/stylesniffer-annotation-processor/pom.xml b/stylesniffer-annotation-processor/pom.xml
index 2db3f88..a71eb6a 100644
--- a/stylesniffer-annotation-processor/pom.xml
+++ b/stylesniffer-annotation-processor/pom.xml
@@ -42,6 +42,8 @@
     <maven.compiler.target>${java.sdk.version}</maven.compiler.target>
     <project.build.sourceEncoding>${source.encoding}</project.build.sourceEncoding>
     <stylesniffer.root>${basedir}/..</stylesniffer.root>
+    <!-- sonar analysis -->
+    <sonar.projectKey>${project.sonar.root.projectKey}-${project.groupId}-${project.artifactId}</sonar.projectKey>
   </properties>
 
   <dependencies>
diff --git a/stylesniffer-annotation-processor/src/main/java/dev/cookiecode/stylesniffer/annotation/processor/RegisterCaseStyleAnnotationProcessor.java b/stylesniffer-annotation-processor/src/main/java/dev/cookiecode/stylesniffer/annotation/processor/RegisterCaseStyleAnnotationProcessor.java
index e05b76a..8f2ec46 100644
--- a/stylesniffer-annotation-processor/src/main/java/dev/cookiecode/stylesniffer/annotation/processor/RegisterCaseStyleAnnotationProcessor.java
+++ b/stylesniffer-annotation-processor/src/main/java/dev/cookiecode/stylesniffer/annotation/processor/RegisterCaseStyleAnnotationProcessor.java
@@ -78,13 +78,13 @@ public class RegisterCaseStyleAnnotationProcessor extends AbstractProcessor {
   private static final String TEMPLATE_VARIABLE_GENERATED_AT = "generatedAt";
   private static final String TEMPLATE_FILE_NAME = "case_style_injector";
   private static final String POINT = ".";
-  private final Class<? extends Annotation> ANNOTATION_CLASS = RegisterCaseStyle.class;
-  private final Class<?> IMPLEMENTED_INTERFACE_CLASS = CaseStyle.class;
+  private static final Class<? extends Annotation> ANNOTATION_CLASS = RegisterCaseStyle.class;
+  private static final Class<?> IMPLEMENTED_INTERFACE_CLASS = CaseStyle.class;
 
   @Override
   public boolean process(
       final Set<? extends TypeElement> annotations, final RoundEnvironment roundEnv) {
-    final var annotatedElements = roundEnv.getElementsAnnotatedWith(this.ANNOTATION_CLASS);
+    final var annotatedElements = roundEnv.getElementsAnnotatedWith(ANNOTATION_CLASS);
 
     if (!annotatedElements.isEmpty()) {
       this.generateCaseStyleInjector(annotatedElements);
@@ -127,7 +127,7 @@ private Context prepareTemplateContext(final Set<? extends Element> elements) {
             Generated.class.getCanonicalName(),
             List.class.getCanonicalName(),
             ArrayList.class.getCanonicalName(),
-            this.IMPLEMENTED_INTERFACE_CLASS.getCanonicalName());
+            IMPLEMENTED_INTERFACE_CLASS.getCanonicalName());
     context.setVariable(TEMPLATE_VARIABLE_IMPORTS, imports.stream().sorted().collect(toList()));
     context.setVariable(TEMPLATE_VARIABLE_CLASS_NAME, GENERATED_CLASS_NAME);
 
diff --git a/stylesniffer-api/pom.xml b/stylesniffer-api/pom.xml
index 97530f3..974ecce 100644
--- a/stylesniffer-api/pom.xml
+++ b/stylesniffer-api/pom.xml
@@ -42,6 +42,8 @@
     <maven.compiler.target>${java.sdk.version}</maven.compiler.target>
     <project.build.sourceEncoding>${source.encoding}</project.build.sourceEncoding>
     <stylesniffer.root>${basedir}/..</stylesniffer.root>
+    <!-- sonar analysis -->
+    <sonar.projectKey>${project.sonar.root.projectKey}-${project.groupId}-${project.artifactId}</sonar.projectKey>
   </properties>
 
   <dependencies>
@@ -51,4 +53,4 @@
     </dependency>
   </dependencies>
 
-</project>
\ No newline at end of file
+</project>
diff --git a/stylesniffer-impl/pom.xml b/stylesniffer-impl/pom.xml
index 0c8e096..cd3e98d 100644
--- a/stylesniffer-impl/pom.xml
+++ b/stylesniffer-impl/pom.xml
@@ -42,6 +42,8 @@
     <maven.compiler.target>${java.sdk.version}</maven.compiler.target>
     <project.build.sourceEncoding>${source.encoding}</project.build.sourceEncoding>
     <stylesniffer.root>${basedir}/..</stylesniffer.root>
+    <!-- sonar analysis -->
+    <sonar.projectKey>${project.sonar.root.projectKey}-${project.groupId}-${project.artifactId}</sonar.projectKey>
   </properties>
 
   <dependencies>
diff --git a/stylesniffer-impl/src/main/java/dev/cookiecode/stylesniffer/impl/SnakeCaseStyle.java b/stylesniffer-impl/src/main/java/dev/cookiecode/stylesniffer/impl/SnakeCaseStyle.java
index f7530c8..1fae7cc 100644
--- a/stylesniffer-impl/src/main/java/dev/cookiecode/stylesniffer/impl/SnakeCaseStyle.java
+++ b/stylesniffer-impl/src/main/java/dev/cookiecode/stylesniffer/impl/SnakeCaseStyle.java
@@ -71,11 +71,7 @@ public Set<String> getVariantNames() {
    * @param name the name to check
    * @return {@code true} if the name is in snake_case, {@code false} otherwise
    */
-  private boolean isSnakeCase(
-      @NonNull
-          final String
-              name) { // TODO: consider creating an annotation @NonEmpty to indicate its handled
-    // upfront
+  private boolean isSnakeCase(@NonNull final String name) {
     // Check if the name is all lowercase and contains underscores
     boolean hasUnderscore = false;
     for (int i = 0; i < name.length(); i++) {
diff --git a/stylesniffer-impl/src/test/java/dev/cookiecode/stylesniffer/impl/KebabCaseStyleTest.java b/stylesniffer-impl/src/test/java/dev/cookiecode/stylesniffer/impl/KebabCaseStyleTest.java
index 2885ab2..f5bac9e 100644
--- a/stylesniffer-impl/src/test/java/dev/cookiecode/stylesniffer/impl/KebabCaseStyleTest.java
+++ b/stylesniffer-impl/src/test/java/dev/cookiecode/stylesniffer/impl/KebabCaseStyleTest.java
@@ -32,6 +32,8 @@
  *
  * @author Sebastien Vermeille
  */
+@SuppressWarnings(
+    "java:S2187") // sonar is not able to detect that BaseCaseStyleTest interface generates test
 class KebabCaseStyleTest implements BaseCaseStyleTest<KebabCaseStyle> {
 
   @Override
diff --git a/stylesniffer-impl/src/test/java/dev/cookiecode/stylesniffer/impl/LowerCamelCaseStyleTest.java b/stylesniffer-impl/src/test/java/dev/cookiecode/stylesniffer/impl/LowerCamelCaseStyleTest.java
index 6359fec..7c7c444 100644
--- a/stylesniffer-impl/src/test/java/dev/cookiecode/stylesniffer/impl/LowerCamelCaseStyleTest.java
+++ b/stylesniffer-impl/src/test/java/dev/cookiecode/stylesniffer/impl/LowerCamelCaseStyleTest.java
@@ -32,6 +32,8 @@
  *
  * @author Sebastien Vermeille
  */
+@SuppressWarnings(
+    "java:S2187") // sonar is not able to detect that BaseCaseStyleTest interface generates test
 class LowerCamelCaseStyleTest implements BaseCaseStyleTest<LowerCamelCaseStyle> {
 
   @Override
diff --git a/stylesniffer-impl/src/test/java/dev/cookiecode/stylesniffer/impl/PascalCaseStyleTest.java b/stylesniffer-impl/src/test/java/dev/cookiecode/stylesniffer/impl/PascalCaseStyleTest.java
index 668c95a..45e17e7 100644
--- a/stylesniffer-impl/src/test/java/dev/cookiecode/stylesniffer/impl/PascalCaseStyleTest.java
+++ b/stylesniffer-impl/src/test/java/dev/cookiecode/stylesniffer/impl/PascalCaseStyleTest.java
@@ -32,6 +32,8 @@
  *
  * @author Sebastien Vermeille
  */
+@SuppressWarnings(
+    "java:S2187") // sonar is not able to detect that BaseCaseStyleTest interface generates test
 class PascalCaseStyleTest implements BaseCaseStyleTest<PascalCaseStyle> {
 
   @Override
diff --git a/stylesniffer-impl/src/test/java/dev/cookiecode/stylesniffer/impl/ScreamingSnakeCaseStyleTest.java b/stylesniffer-impl/src/test/java/dev/cookiecode/stylesniffer/impl/ScreamingSnakeCaseStyleTest.java
index 66f0630..1a2953a 100644
--- a/stylesniffer-impl/src/test/java/dev/cookiecode/stylesniffer/impl/ScreamingSnakeCaseStyleTest.java
+++ b/stylesniffer-impl/src/test/java/dev/cookiecode/stylesniffer/impl/ScreamingSnakeCaseStyleTest.java
@@ -32,6 +32,8 @@
  *
  * @author Sebastien Vermeille
  */
+@SuppressWarnings(
+    "java:S2187") // sonar is not able to detect that BaseCaseStyleTest interface generates test
 class ScreamingSnakeCaseStyleTest implements BaseCaseStyleTest<ScreamingSnakeCaseStyle> {
 
   @Override
diff --git a/stylesniffer-impl/src/test/java/dev/cookiecode/stylesniffer/impl/SnakeCaseStyleTest.java b/stylesniffer-impl/src/test/java/dev/cookiecode/stylesniffer/impl/SnakeCaseStyleTest.java
index ea1b759..cc34351 100644
--- a/stylesniffer-impl/src/test/java/dev/cookiecode/stylesniffer/impl/SnakeCaseStyleTest.java
+++ b/stylesniffer-impl/src/test/java/dev/cookiecode/stylesniffer/impl/SnakeCaseStyleTest.java
@@ -30,6 +30,8 @@
  *
  * @author Sebastien Vermeille
  */
+@SuppressWarnings(
+    "java:S2187") // sonar is not able to detect that BaseCaseStyleTest interface generates test
 class SnakeCaseStyleTest implements BaseCaseStyleTest<SnakeCaseStyle> {
 
   @Override
diff --git a/stylesniffer-testkit/pom.xml b/stylesniffer-testkit/pom.xml
index ab8b95d..64a467a 100644
--- a/stylesniffer-testkit/pom.xml
+++ b/stylesniffer-testkit/pom.xml
@@ -43,6 +43,8 @@
     <maven.compiler.target>${java.sdk.version}</maven.compiler.target>
     <project.build.sourceEncoding>${source.encoding}</project.build.sourceEncoding>
     <stylesniffer.root>${basedir}/..</stylesniffer.root>
+    <!-- sonar analysis -->
+    <sonar.projectKey>${project.sonar.root.projectKey}-${project.groupId}-${project.artifactId}</sonar.projectKey>
   </properties>
 
   <dependencies>
@@ -63,4 +65,4 @@
     </dependency>
   </dependencies>
 
-</project>
\ No newline at end of file
+</project>