diff --git a/flex-squid/src/test/java/org/sonar/flex/grammar/statements/DoStatementTest.java b/flex-squid/src/test/java/org/sonar/flex/grammar/statements/DoStatementTest.java
index e2900e89..c12df063 100644
--- a/flex-squid/src/test/java/org/sonar/flex/grammar/statements/DoStatementTest.java
+++ b/flex-squid/src/test/java/org/sonar/flex/grammar/statements/DoStatementTest.java
@@ -21,12 +21,12 @@
 import org.sonar.sslr.parser.LexerlessGrammar;
 import org.sonar.sslr.tests.Assertions;
 
-public class DoStatementTest {
+class DoStatementTest {
 
   private final LexerlessGrammar g = FlexGrammar.createGrammar();
 
   @Test
-  public void test() {
+  void test() {
     Assertions.assertThat(g.rule(FlexGrammar.DO_STATEMENT))
       .matches("do { } while (condition)");
   }
diff --git a/flex-squid/src/test/java/org/sonar/flex/grammar/statements/ThrowStatementTest.java b/flex-squid/src/test/java/org/sonar/flex/grammar/statements/ThrowStatementTest.java
index 7d53c0cb..fcd72907 100644
--- a/flex-squid/src/test/java/org/sonar/flex/grammar/statements/ThrowStatementTest.java
+++ b/flex-squid/src/test/java/org/sonar/flex/grammar/statements/ThrowStatementTest.java
@@ -26,7 +26,7 @@ public class ThrowStatementTest {
   private final LexerlessGrammar g = FlexGrammar.createGrammar();
 
   @Test
-  public void eos_is_line_terminator() {
+  void eos_is_line_terminator() {
     Assertions.assertThat(g.rule(FlexGrammar.THROW_STATEMENT))
       .matchesPrefix("throw \n", "another-statement ;")
       .matchesPrefix("throw expression \n", "another-statement ;")
@@ -34,7 +34,7 @@ public void eos_is_line_terminator() {
   }
 
   @Test
-  public void eos_is_semicolon() {
+  void eos_is_semicolon() {
     Assertions.assertThat(g.rule(FlexGrammar.THROW_STATEMENT))
       .matchesPrefix("throw ;", "another-statement")
       .matchesPrefix("throw expression ;", "another-statement");
diff --git a/flex-squid/src/test/java/org/sonar/flex/grammar/statements/TryStatementTest.java b/flex-squid/src/test/java/org/sonar/flex/grammar/statements/TryStatementTest.java
index 10a12809..8564913c 100644
--- a/flex-squid/src/test/java/org/sonar/flex/grammar/statements/TryStatementTest.java
+++ b/flex-squid/src/test/java/org/sonar/flex/grammar/statements/TryStatementTest.java
@@ -21,7 +21,7 @@
 import org.sonar.sslr.parser.LexerlessGrammar;
 import org.sonar.sslr.tests.Assertions;
 
-public class TryStatementTest {
+class TryStatementTest {
 
   private final LexerlessGrammar g = FlexGrammar.createGrammar();