add TODO + spotless reformat

Author: SylvainJuge

javaagent-extension-api/src/main/java/io/opentelemetry/javaagent/extension/instrumentation/internal/ExperimentalInstrumentationModule.java

@@ -73,6 +73,8 @@ default List<String> agentPackagesToHide() {
    *
    * @return map of module to open as key, list of packages as value.
    */
+  // TODO: when moving this method outside of experimental API, we need to decide using JavaModule
+  // instance or a class FQN in the map entry, as it could lead to some limitations
   default Map<JavaModule, List<String>> jpmsModulesToOpen() {
     return Collections.emptyMap();
   }

javaagent-tooling/javaagent-tooling-java9/src/main/java/io/opentelemetry/javaagent/tooling/ModuleOpener.java

@@ -40,7 +40,8 @@ private ModuleOpener() {}
    * Opens JPMS module to a class loader unnamed module
    *
    * @param targetModule target module
-   * @param openTo class loader to open module for, {@literal null} to use the unnamed module of bootstrap classloader.
+   * @param openTo class loader to open module for, {@literal null} to use the unnamed module of
+   *     bootstrap classloader.
    * @param packagesToOpen packages to open
    */
   public static void open(