--- maven-plugin-tools-3.5.1/maven-plugin-plugin/src/main/java/org/apache/maven/plugin/plugin/PluginReport.java	2018-11-08 19:20:01.544523214 +0100
+++ maven-plugin-tools-3.5.1/maven-plugin-plugin/src/main/java/org/apache/maven/plugin/plugin/PluginReport.java	2018-11-08 19:30:02.187309471 +0100
@@ -765,7 +765,6 @@
                 return jdk;
             }
 
-            @SuppressWarnings( "unchecked" )
             Plugin compiler = getCompilerPlugin( project.getBuild().getPluginsAsMap() );
             if ( compiler == null )
             {
@@ -797,9 +796,9 @@
             return "Unknown";
         }
 
-        private static Plugin getCompilerPlugin( Map<String, Object> pluginsAsMap )
+        private static Plugin getCompilerPlugin( Map<String, Plugin> pluginsAsMap )
         {
-            return (Plugin) pluginsAsMap.get( "org.apache.maven.plugins:maven-compiler-plugin" );
+            return pluginsAsMap.get( "org.apache.maven.plugins:maven-compiler-plugin" );
         }
 
         private static String getPluginParameter( Plugin plugin, String parameter )