Index: trunk/src/org/openstreetmap/josm/Main.java
===================================================================
--- trunk/src/org/openstreetmap/josm/Main.java	(revision 11920)
+++ trunk/src/org/openstreetmap/josm/Main.java	(revision 11921)
@@ -1221,4 +1221,8 @@
         private static MasterWindowListener INSTANCE;
 
+        /**
+         * Returns the unique {@code MasterWindowListener} instance.
+         * @return the unique {@code MasterWindowListener} instance
+         */
         public static synchronized MasterWindowListener getInstance() {
             if (INSTANCE == null) {
Index: trunk/src/org/openstreetmap/josm/actions/OrthogonalizeAction.java
===================================================================
--- trunk/src/org/openstreetmap/josm/actions/OrthogonalizeAction.java	(revision 11920)
+++ trunk/src/org/openstreetmap/josm/actions/OrthogonalizeAction.java	(revision 11921)
@@ -539,5 +539,5 @@
      * Class contains some auxiliary functions
      */
-    private static final class EN {
+    static final class EN {
         private EN() {
             // Hide implicit public constructor for utility class
Index: trunk/src/org/openstreetmap/josm/data/imagery/GetCapabilitiesParseHelper.java
===================================================================
--- trunk/src/org/openstreetmap/josm/data/imagery/GetCapabilitiesParseHelper.java	(revision 11920)
+++ trunk/src/org/openstreetmap/josm/data/imagery/GetCapabilitiesParseHelper.java	(revision 11921)
@@ -15,5 +15,5 @@
 /**
  * Helper class for handling OGC GetCapabilities documents
- *
+ * @since 10993
  */
 public final class GetCapabilitiesParseHelper {
Index: trunk/src/org/openstreetmap/josm/data/oauth/SignpostAdapters.java
===================================================================
--- trunk/src/org/openstreetmap/josm/data/oauth/SignpostAdapters.java	(revision 11920)
+++ trunk/src/org/openstreetmap/josm/data/oauth/SignpostAdapters.java	(revision 11921)
@@ -18,4 +18,5 @@
 
     private SignpostAdapters() {
+        // Hide constructor for utility classes
     }
 
Index: trunk/src/org/openstreetmap/josm/gui/ConditionalOptionPaneUtil.java
===================================================================
--- trunk/src/org/openstreetmap/josm/gui/ConditionalOptionPaneUtil.java	(revision 11920)
+++ trunk/src/org/openstreetmap/josm/gui/ConditionalOptionPaneUtil.java	(revision 11921)
@@ -45,5 +45,7 @@
      * this is a static utility class only
      */
-    private ConditionalOptionPaneUtil() {}
+    private ConditionalOptionPaneUtil() {
+        // Hide default constructor for utility classes
+    }
 
     /**
Index: trunk/src/org/openstreetmap/josm/gui/ExceptionDialogUtil.java
===================================================================
--- trunk/src/org/openstreetmap/josm/gui/ExceptionDialogUtil.java	(revision 11920)
+++ trunk/src/org/openstreetmap/josm/gui/ExceptionDialogUtil.java	(revision 11921)
@@ -38,4 +38,5 @@
      */
     private ExceptionDialogUtil() {
+        // Hide default constructor for utility classes
     }
 
Index: trunk/src/org/openstreetmap/josm/gui/datatransfer/ClipboardUtils.java
===================================================================
--- trunk/src/org/openstreetmap/josm/gui/datatransfer/ClipboardUtils.java	(revision 11920)
+++ trunk/src/org/openstreetmap/josm/gui/datatransfer/ClipboardUtils.java	(revision 11921)
@@ -34,4 +34,5 @@
 
     private ClipboardUtils() {
+        // Hide default constructor for utility classes
     }
 
Index: trunk/src/org/openstreetmap/josm/tools/StreamUtils.java
===================================================================
--- trunk/src/org/openstreetmap/josm/tools/StreamUtils.java	(revision 11920)
+++ trunk/src/org/openstreetmap/josm/tools/StreamUtils.java	(revision 11921)
@@ -16,5 +16,7 @@
      * Utility class
      */
-    private StreamUtils() {}
+    private StreamUtils() {
+        // Hide default constructor for utility classes
+    }
 
     /**
Index: trunk/src/org/openstreetmap/josm/tools/date/DateUtils.java
===================================================================
--- trunk/src/org/openstreetmap/josm/tools/date/DateUtils.java	(revision 11920)
+++ trunk/src/org/openstreetmap/josm/tools/date/DateUtils.java	(revision 11921)
@@ -59,5 +59,5 @@
      * Constructs a new {@code DateUtils}.
      */
-    protected DateUtils() {
+    private DateUtils() {
         // Hide default constructor for utils classes
     }