diff --git a/test-utils/src/main/java/org/sonarsource/sonarlint/core/test/utils/junit5/package-info.java b/test-utils/src/main/java/org/sonarsource/sonarlint/core/test/utils/junit5/package-info.java
new file mode 100644
index 0000000000..c48366ec0c
--- /dev/null
+++ b/test-utils/src/main/java/org/sonarsource/sonarlint/core/test/utils/junit5/package-info.java
@@ -0,0 +1,23 @@
+/*
+ * SonarLint Core - Test Utils
+ * Copyright (C) 2016-2025 SonarSource SA
+ * mailto:info AT sonarsource DOT com
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 3 of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this program; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+ */
+@ParametersAreNonnullByDefault
+package org.sonarsource.sonarlint.core.test.utils.junit5;
+
+import javax.annotation.ParametersAreNonnullByDefault;
diff --git a/test-utils/src/main/java/org/sonarsource/sonarlint/core/test/utils/package-info.java b/test-utils/src/main/java/org/sonarsource/sonarlint/core/test/utils/package-info.java
new file mode 100644
index 0000000000..397417a3c5
--- /dev/null
+++ b/test-utils/src/main/java/org/sonarsource/sonarlint/core/test/utils/package-info.java
@@ -0,0 +1,23 @@
+/*
+ * SonarLint Core - Test Utils
+ * Copyright (C) 2016-2025 SonarSource SA
+ * mailto:info AT sonarsource DOT com
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 3 of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this program; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+ */
+@ParametersAreNonnullByDefault
+package org.sonarsource.sonarlint.core.test.utils;
+
+import javax.annotation.ParametersAreNonnullByDefault;
diff --git a/test-utils/src/main/java/org/sonarsource/sonarlint/core/test/utils/plugins/package-info.java b/test-utils/src/main/java/org/sonarsource/sonarlint/core/test/utils/plugins/package-info.java
new file mode 100644
index 0000000000..3d96e8c30f
--- /dev/null
+++ b/test-utils/src/main/java/org/sonarsource/sonarlint/core/test/utils/plugins/package-info.java
@@ -0,0 +1,23 @@
+/*
+ * SonarLint Core - Test Utils
+ * Copyright (C) 2016-2025 SonarSource SA
+ * mailto:info AT sonarsource DOT com
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 3 of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this program; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+ */
+@ParametersAreNonnullByDefault
+package org.sonarsource.sonarlint.core.test.utils.plugins;
+
+import javax.annotation.ParametersAreNonnullByDefault;
diff --git a/test-utils/src/main/java/org/sonarsource/sonarlint/core/test/utils/plugins/src/package-info.java b/test-utils/src/main/java/org/sonarsource/sonarlint/core/test/utils/plugins/src/package-info.java
new file mode 100644
index 0000000000..5d9885fbad
--- /dev/null
+++ b/test-utils/src/main/java/org/sonarsource/sonarlint/core/test/utils/plugins/src/package-info.java
@@ -0,0 +1,23 @@
+/*
+ * SonarLint Core - Test Utils
+ * Copyright (C) 2016-2025 SonarSource SA
+ * mailto:info AT sonarsource DOT com
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 3 of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this program; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+ */
+@ParametersAreNonnullByDefault
+package org.sonarsource.sonarlint.core.test.utils.plugins.src;
+
+import javax.annotation.ParametersAreNonnullByDefault;
diff --git a/test-utils/src/main/java/org/sonarsource/sonarlint/core/test/utils/server/package-info.java b/test-utils/src/main/java/org/sonarsource/sonarlint/core/test/utils/server/package-info.java
new file mode 100644
index 0000000000..ae641fd227
--- /dev/null
+++ b/test-utils/src/main/java/org/sonarsource/sonarlint/core/test/utils/server/package-info.java
@@ -0,0 +1,23 @@
+/*
+ * SonarLint Core - Test Utils
+ * Copyright (C) 2016-2025 SonarSource SA
+ * mailto:info AT sonarsource DOT com
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 3 of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this program; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+ */
+@ParametersAreNonnullByDefault
+package org.sonarsource.sonarlint.core.test.utils.server;
+
+import javax.annotation.ParametersAreNonnullByDefault;
diff --git a/test-utils/src/main/java/org/sonarsource/sonarlint/core/test/utils/server/sse/package-info.java b/test-utils/src/main/java/org/sonarsource/sonarlint/core/test/utils/server/sse/package-info.java
new file mode 100644
index 0000000000..b365983f95
--- /dev/null
+++ b/test-utils/src/main/java/org/sonarsource/sonarlint/core/test/utils/server/sse/package-info.java
@@ -0,0 +1,23 @@
+/*
+ * SonarLint Core - Test Utils
+ * Copyright (C) 2016-2025 SonarSource SA
+ * mailto:info AT sonarsource DOT com
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 3 of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this program; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+ */
+@ParametersAreNonnullByDefault
+package org.sonarsource.sonarlint.core.test.utils.server.sse;
+
+import javax.annotation.ParametersAreNonnullByDefault;
diff --git a/test-utils/src/main/java/org/sonarsource/sonarlint/core/test/utils/server/websockets/package-info.java b/test-utils/src/main/java/org/sonarsource/sonarlint/core/test/utils/server/websockets/package-info.java
new file mode 100644
index 0000000000..c721a69e72
--- /dev/null
+++ b/test-utils/src/main/java/org/sonarsource/sonarlint/core/test/utils/server/websockets/package-info.java
@@ -0,0 +1,23 @@
+/*
+ * SonarLint Core - Test Utils
+ * Copyright (C) 2016-2025 SonarSource SA
+ * mailto:info AT sonarsource DOT com
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 3 of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this program; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+ */
+@ParametersAreNonnullByDefault
+package org.sonarsource.sonarlint.core.test.utils.server.websockets;
+
+import javax.annotation.ParametersAreNonnullByDefault;
diff --git a/test-utils/src/main/java/org/sonarsource/sonarlint/core/test/utils/storage/package-info.java b/test-utils/src/main/java/org/sonarsource/sonarlint/core/test/utils/storage/package-info.java
new file mode 100644
index 0000000000..b2ff5c3c6c
--- /dev/null
+++ b/test-utils/src/main/java/org/sonarsource/sonarlint/core/test/utils/storage/package-info.java
@@ -0,0 +1,23 @@
+/*
+ * SonarLint Core - Test Utils
+ * Copyright (C) 2016-2025 SonarSource SA
+ * mailto:info AT sonarsource DOT com
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 3 of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this program; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+ */
+@ParametersAreNonnullByDefault
+package org.sonarsource.sonarlint.core.test.utils.storage;
+
+import javax.annotation.ParametersAreNonnullByDefault;