diff --git a/modules/DesktopPreview/src/main/java/org/gephi/desktop/preview/PreviewTopComponent.java b/modules/DesktopPreview/src/main/java/org/gephi/desktop/preview/PreviewTopComponent.java
index 5d4a674862d8427cedf7e93e582aad78e19d2c4e..c1b8ee5a0620982e0cd1e3421f7123911f3bcc64 100644
--- a/modules/DesktopPreview/src/main/java/org/gephi/desktop/preview/PreviewTopComponent.java
+++ b/modules/DesktopPreview/src/main/java/org/gephi/desktop/preview/PreviewTopComponent.java
@@ -54,9 +54,9 @@ import javax.swing.SwingUtilities;
 import javax.swing.UIManager;
 import org.gephi.desktop.preview.api.PreviewUIController;
 import org.gephi.desktop.preview.api.PreviewUIModel;
+import org.gephi.preview.api.G2DTarget;
 import org.gephi.preview.api.PreviewController;
 import org.gephi.preview.api.PreviewProperty;
-import org.gephi.preview.api.G2DTarget;
 import org.gephi.preview.api.RenderTarget;
 import org.gephi.ui.components.JColorButton;
 import org.gephi.ui.utils.UIUtils;
@@ -178,7 +178,6 @@ public final class PreviewTopComponent extends TopComponent implements PropertyC
     }
 
     public void initTarget(PreviewUIModel previewUIModel) {
-        System.out.println("INIT T");
         // inits the preview applet
         if (previewUIModel != null && target == null) {
             PreviewController previewController = Lookup.getDefault().lookup(PreviewController.class);
diff --git a/modules/PreviewPlugin/src/main/java/org/gephi/preview/plugin/renderers/ArrowRenderer.java b/modules/PreviewPlugin/src/main/java/org/gephi/preview/plugin/renderers/ArrowRenderer.java
index 1748fab6df7079798ef47f3da664311fd978bd7f..1203434566c49b43b92e1ad346ee5b98c7c786c5 100644
--- a/modules/PreviewPlugin/src/main/java/org/gephi/preview/plugin/renderers/ArrowRenderer.java
+++ b/modules/PreviewPlugin/src/main/java/org/gephi/preview/plugin/renderers/ArrowRenderer.java
@@ -85,7 +85,7 @@ public class ArrowRenderer implements Renderer {
             Item targetItem = item.getData(EdgeRenderer.TARGET);
 
             //Weight and color
-            Float weight = item.getData(EdgeItem.WEIGHT);
+            Double weight = item.getData(EdgeItem.WEIGHT);
             EdgeColor edgeColor = (EdgeColor) properties.getValue(PreviewProperty.EDGE_COLOR);
             Color color = edgeColor.getColor((Color) item.getData(EdgeItem.COLOR),
                     (Color) sourceItem.getData(NodeItem.COLOR),
diff --git a/modules/PreviewPlugin/src/main/java/org/gephi/preview/plugin/renderers/EdgeRenderer.java b/modules/PreviewPlugin/src/main/java/org/gephi/preview/plugin/renderers/EdgeRenderer.java
index d81d8bd3d77fd9057749fcd6d16180f6426ee7ba..82b881fb41ab18eee58d7233165ae7a49af60aab 100644
--- a/modules/PreviewPlugin/src/main/java/org/gephi/preview/plugin/renderers/EdgeRenderer.java
+++ b/modules/PreviewPlugin/src/main/java/org/gephi/preview/plugin/renderers/EdgeRenderer.java
@@ -149,13 +149,13 @@ public class EdgeRenderer implements Renderer {
                 if ((Boolean) item.getData(EdgeItem.DIRECTED) || edgeRadius > 0f) {
                     //Target
                     Item targetItem = (Item) item.getData(TARGET);
-                    Float weight = item.getData(EdgeItem.WEIGHT);
+                    Double weight = item.getData(EdgeItem.WEIGHT);
                     //Avoid negative arrow size:
                     float arrowSize = properties.getFloatValue(PreviewProperty.ARROW_SIZE);
                     if (arrowSize < 0) {
                         arrowSize = 0;
                     }
-                    float size = arrowSize * weight;
+                    float size = arrowSize * weight.floatValue();
                     targetRadius = -(edgeRadius + (Float) targetItem.getData(NodeItem.SIZE) / 2f + properties.getFloatValue(PreviewProperty.NODE_BORDER_WIDTH));
                     item.setData(TARGET_RADIUS, targetRadius - size);
                 }