fix/suppress compiler warnings

scm-webapp/src/main/java/sonia/scm/plugin/DefaultPluginLoader.java

@@ -258,6 +258,7 @@ public class DefaultPluginLoader implements PluginLoader
    * @throws IOException
    * @throws JAXBException
    */
+  @SuppressWarnings("unchecked")
   private <T> Set<T> getInstalled(ClassLoader classLoader, JAXBContext context,
     String path)
     throws IOException, JAXBException

scm-webapp/src/main/java/sonia/scm/plugin/ExtensionBinder.java

@@ -59,6 +59,7 @@ import javax.ws.rs.ext.Provider;
  *
  * @author Sebastian Sdorra
  */
+@SuppressWarnings("unchecked")
 public final class ExtensionBinder
 {