Plugin uses Unchecked or Unsafe Operations

Note: Some input files use or override a deprecated API.
Note: Recompile with -Xlint:deprecation for details.
Note: /Users/munishbahri/AGS/flutter/.pub-cache/hosted/pub.dartlang.org/flutter_webview_plugin-0.3.0+2/android/src/main/java/com/flutter_webview_plugin/WebviewManager.java uses unchecked or unsafe operations.
Note: Recompile with -Xlint:unchecked for details.