deal with a handful of warnings

app/src/processing/app/contrib/UpdateListPanel.java

@@ -2,7 +2,6 @@ package processing.app.contrib;
 
 import java.awt.Color;
 import java.awt.Component;
-import java.awt.EventQueue;
 import java.awt.Font;
 import java.util.Arrays;
 import java.util.Comparator;

core/src/processing/javafx/PGraphicsFX2D.java

@@ -41,7 +41,6 @@ import javafx.scene.image.PixelWriter;
 import javafx.scene.image.WritableImage;
 import javafx.scene.image.WritablePixelFormat;
 import javafx.scene.paint.Color;
-import javafx.scene.paint.Paint;
 import javafx.scene.shape.ArcType;
 import javafx.scene.shape.StrokeLineCap;
 import javafx.scene.shape.StrokeLineJoin;

core/src/processing/javafx/PSurfaceFX.java

@@ -874,6 +874,9 @@ public class PSurfaceFX implements PSurface {
       case MIDDLE:
         button = PConstants.CENTER;
         break;
+      case NONE:
+        // not currently handled
+        break;
     }
 
     // If running on Mac OS, allow ctrl-click as right mouse.

java/src/processing/mode/java/JavaMode.java

@@ -207,6 +207,7 @@ public class JavaMode extends Mode {
   }
 
 
+  /*
   // TODO Why is this necessary? Why isn't Sketch.isModified() used?
   static private boolean isSketchModified(Sketch sketch) {
     for (SketchCode sc : sketch.getCode()) {
@@ -216,6 +217,7 @@ public class JavaMode extends Mode {
     }
     return false;
   }
+  */
 
 
 //  public void handleStop() {