Index: trunk/src/org/openstreetmap/josm/gui/bbox/SourceButton.java
===================================================================
--- trunk/src/org/openstreetmap/josm/gui/bbox/SourceButton.java	(revision 12596)
+++ trunk/src/org/openstreetmap/josm/gui/bbox/SourceButton.java	(revision 12597)
@@ -22,4 +22,8 @@
 import org.openstreetmap.josm.tools.ImageProvider;
 
+/**
+ * Button that allows to choose the imagery source used for slippy map background.
+ * @since 1390
+ */
 public class SourceButton extends JComponent {
 
@@ -45,4 +49,9 @@
     private final SlippyMapBBoxChooser slippyMapBBoxChooser;
 
+    /**
+     * Constructs a new {@code SourceButton}.
+     * @param slippyMapBBoxChooser parent slippy map
+     * @param sources list of imagery sources to display
+     */
     public SourceButton(SlippyMapBBoxChooser slippyMapBBoxChooser, Collection<TileSource> sources) {
         this.slippyMapBBoxChooser = slippyMapBBoxChooser;
@@ -124,4 +133,7 @@
     }
 
+    /**
+     * Toggle the visibility of imagery source list.
+     */
     public void toggle() {
         this.isEnlarged = !this.isEnlarged;
@@ -131,4 +143,8 @@
     }
 
+    /**
+     * Changes the current imagery source used for slippy map background.
+     * @param tileSource the new imagery source to use
+     */
     public void setCurrentMap(TileSource tileSource) {
         for (int i = 0; i < sources.length; i++) {
Index: trunk/src/org/openstreetmap/josm/gui/download/DownloadSelection.java
===================================================================
--- trunk/src/org/openstreetmap/josm/gui/download/DownloadSelection.java	(revision 12596)
+++ trunk/src/org/openstreetmap/josm/gui/download/DownloadSelection.java	(revision 12597)
@@ -4,4 +4,9 @@
 import org.openstreetmap.josm.data.Bounds;
 
+/**
+ * A mean to select a download area in the download dialog.
+ * Currently each selector implementation is accessible through its dedicated tab.
+ * @since 2344
+ */
 public interface DownloadSelection {
 
Index: trunk/src/org/openstreetmap/josm/gui/layer/imagery/ColorfulImageProcessor.java
===================================================================
--- trunk/src/org/openstreetmap/josm/gui/layer/imagery/ColorfulImageProcessor.java	(revision 12596)
+++ trunk/src/org/openstreetmap/josm/gui/layer/imagery/ColorfulImageProcessor.java	(revision 12597)
@@ -6,4 +6,5 @@
 import java.util.Map;
 
+import org.openstreetmap.josm.Main;
 import org.openstreetmap.josm.gui.layer.ImageProcessor;
 import org.openstreetmap.josm.io.session.SessionAwareReadApply;
@@ -62,5 +63,7 @@
                 setColorfulness(Double.parseDouble(cStr));
             } catch (NumberFormatException e) {
-                // nothing
+                if (Main.isTraceEnabled()) {
+                    Main.trace(e);
+                }
             }
         }
Index: trunk/src/org/openstreetmap/josm/gui/layer/imagery/GammaImageProcessor.java
===================================================================
--- trunk/src/org/openstreetmap/josm/gui/layer/imagery/GammaImageProcessor.java	(revision 12596)
+++ trunk/src/org/openstreetmap/josm/gui/layer/imagery/GammaImageProcessor.java	(revision 12597)
@@ -73,5 +73,7 @@
                 setGamma(Double.parseDouble(cStr));
             } catch (NumberFormatException e) {
-                // nothing
+                if (Main.isTraceEnabled()) {
+                    Main.trace(e);
+                }
             }
         }
Index: trunk/src/org/openstreetmap/josm/gui/layer/imagery/SharpenImageProcessor.java
===================================================================
--- trunk/src/org/openstreetmap/josm/gui/layer/imagery/SharpenImageProcessor.java	(revision 12596)
+++ trunk/src/org/openstreetmap/josm/gui/layer/imagery/SharpenImageProcessor.java	(revision 12597)
@@ -8,4 +8,5 @@
 import java.util.Map;
 
+import org.openstreetmap.josm.Main;
 import org.openstreetmap.josm.gui.layer.ImageProcessor;
 import org.openstreetmap.josm.io.session.SessionAwareReadApply;
@@ -99,5 +100,7 @@
                 setSharpenLevel(Float.parseFloat(vStr));
             } catch (NumberFormatException e) {
-                // nothing
+                if (Main.isTraceEnabled()) {
+                    Main.trace(e);
+                }
             }
         }