fix/suppress compiler warnings

scm-webapp/src/main/java/sonia/scm/api/rest/resources/AbstractManagerResource.java

@@ -660,6 +660,7 @@ public abstract class AbstractManagerResource<T extends ModelObject,
      * @return
      */
     @Override
+    @SuppressWarnings("unchecked")
     public int compare(Object o1, Object o2)
     {
       return super.compare(o1, o2) * -1;

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
 {