Merge pull request #145 from wordpress-mobile/fix/eventbus_exception_invoking_subscriber_failed

Fix NullPointerException in AppLog.addEntry

Author: backwardstruck

README.md

@@ -27,10 +27,12 @@ In the following cases, the CI will publish a new version with the following for
 
 - [WordPress for Android][2]
 - [FluxC][3]
+- [Woo for Android][4]
 
 ## License
 Dual licensed under MIT, and GPL.
 
 [1]: https://github.com/wordpress-mobile/WordPress-Utils-Android/blob/a9fbe8e6597d44055ec2180dbf45aecbfc332a20/WordPressUtils/build.gradle#L37
 [2]: https://github.com/wordpress-mobile/WordPress-Android
 [3]: https://github.com/wordpress-mobile/WordPress-FluxC-Android
+[4]: https://github.com/woocommerce/woocommerce-android

WordPressUtils/src/main/java/org/wordpress/android/util/AppLog.java

@@ -305,7 +305,12 @@ private static void addEntry(T tag, LogLevel level, String text) {
 
         // Call our listeners if any
         for (AppLogListener listener : currentListeners) {
-            listener.onLog(tag, level, text);
+            if (listener != null) {
+                listener.onLog(tag, level, text);
+            } else {
+                // Log a warning
+                w(T.UTILS, "AppLogListener is null when attempting to log.");
+            }
         }
         // Record entry if enabled
         if (mEnableRecording) {