NPE fix (#22886)

* Output information about what's being broadcast

* Expose/promote QNameString in Logging to allow other logging locations to get a formatted FullQName

* Revert inadvertent build_overrides/pigweed_environment.gni

This partially reverts commit 15639cf.

# Conflicts:
#	build_overrides/pigweed_environment.gni

* Update BUILD.gn deps for QNameString & move it to its own file to avoid circular deps in /responders

* Remove unnecessary StringBuilder addition as QNameString is now in its own file

* Restyled by whitespace

* Restyled by clang-format

* Check for null params

Co-authored-by: Restyled.io <[email protected]>

src/controller/java/src/chip/devicecontroller/ChipDeviceController.java

@@ -50,6 +50,9 @@ public static void loadJni() {
    * ID
    */
   public ChipDeviceController(ControllerParams params) {
+    if (params == null) {
+      throw new NullPointerException("params cannot be null");
+    }
     deviceControllerPtr = newDeviceController(params);
   }