transformed Plugin class to Interface with default methods

src/main/java/ch/psi/plugin/TestPlugin.java

@@ -11,14 +11,14 @@ import ch.psi.utils.swing.SwingUtils;
 /**
  *
  */
-public class TestPlugin extends Plugin{
+public class TestPlugin implements Plugin{
     MainPanel panel;
     @Override
-    protected void onStart() {
+    public void onStart() {
         panel = new MainPanel(){
             protected void run(String name){        
                 try {
-                    TestPlugin.this.run(name);
+                    TestPlugin.this.runAsync(name);
                 } catch (Exception ex) {
                     SwingUtils.showException(panel, ex);
                 }
@@ -29,16 +29,16 @@ public class TestPlugin extends Plugin{
     }
 
     @Override
-    protected void onStop() {
+    public void onStop() {
         
     }
     
-    protected void onStateChange(State state, State former){
+    public void onStateChange(State state, State former){
         panel.setState(state);
     }
     
     @Override
-    protected void onInitialize(int runCount){
+    public void onInitialize(int runCount){
         panel.setDevice(getDevice("motor"));
     }