Index: trunk/test/unit/org/openstreetmap/josm/data/validation/tests/TagCheckerTest.java
===================================================================
--- trunk/test/unit/org/openstreetmap/josm/data/validation/tests/TagCheckerTest.java	(revision 9229)
+++ trunk/test/unit/org/openstreetmap/josm/data/validation/tests/TagCheckerTest.java	(revision 9231)
@@ -40,6 +40,10 @@
     }
 
+    /**
+     * Check for mispelled key.
+     * @throws IOException if any I/O error occurs
+     */
     @Test
-    public void testInvalidKey() throws Exception {
+    public void testInvalidKey() throws IOException {
         final List<TestError> errors = test(OsmUtils.createPrimitive("node Name=Main"));
         assertEquals(1, errors.size());
@@ -48,6 +52,10 @@
     }
 
+    /**
+     * Check for mispelled key.
+     * @throws IOException if any I/O error occurs
+     */
     @Test
-    public void testMisspelledKey() throws Exception {
+    public void testMisspelledKey() throws IOException {
         final List<TestError> errors = test(OsmUtils.createPrimitive("node landuse;=forest"));
         assertEquals(1, errors.size());
@@ -56,6 +64,10 @@
     }
 
+    /**
+     * Check for unknown key.
+     * @throws IOException if any I/O error occurs
+     */
     @Test
-    public void testTranslatedNameKey() throws Exception {
+    public void testTranslatedNameKey() throws IOException {
         final List<TestError> errors = test(OsmUtils.createPrimitive("node namez=Baz"));
         assertEquals(1, errors.size());
@@ -64,6 +76,10 @@
     }
 
+    /**
+     * Check for mispelled value.
+     * @throws IOException if any I/O error occurs
+     */
     @Test
-    public void testMisspelledTag() throws Exception {
+    public void testMisspelledTag() throws IOException {
         final List<TestError> errors = test(OsmUtils.createPrimitive("node landuse=forrest"));
         assertEquals(1, errors.size());
Index: trunk/test/unit/org/openstreetmap/josm/gui/conflict/tags/RelationMemberConflictResolverModelTest.java
===================================================================
--- trunk/test/unit/org/openstreetmap/josm/gui/conflict/tags/RelationMemberConflictResolverModelTest.java	(revision 9229)
+++ trunk/test/unit/org/openstreetmap/josm/gui/conflict/tags/RelationMemberConflictResolverModelTest.java	(revision 9231)
@@ -20,4 +20,7 @@
 import org.openstreetmap.josm.data.osm.Way;
 
+/**
+ * Unit tests of {@link RelationMemberConflictResolverModel} class.
+ */
 public class RelationMemberConflictResolverModelTest {
 
Index: trunk/test/unit/org/openstreetmap/josm/gui/preferences/ToolbarPreferencesTest.java
===================================================================
--- trunk/test/unit/org/openstreetmap/josm/gui/preferences/ToolbarPreferencesTest.java	(revision 9229)
+++ trunk/test/unit/org/openstreetmap/josm/gui/preferences/ToolbarPreferencesTest.java	(revision 9231)
@@ -30,7 +30,10 @@
         }
 
+        @Override
         public void actionPerformed(ActionEvent e, Map<String, Object> parameters) {
+            // Do nothing
         }
 
+        @Override
         public List<ActionParameter<?>> getActionParameters() {
             List<ActionParameter<?>> result = new ArrayList<>();
@@ -40,6 +43,7 @@
         }
 
+        @Override
         public void actionPerformed(ActionEvent e) {
-
+            // Do nothing
         }
     }
Index: trunk/test/unit/org/openstreetmap/josm/gui/util/RotationAngleTest.java
===================================================================
--- trunk/test/unit/org/openstreetmap/josm/gui/util/RotationAngleTest.java	(revision 9229)
+++ trunk/test/unit/org/openstreetmap/josm/gui/util/RotationAngleTest.java	(revision 9231)
@@ -13,4 +13,7 @@
     private static final double EPSILON = 1e-11;
 
+    /**
+     * Unit test of method {@link RotationAngle#buildStaticRotation} - nominal cases.
+     */
     @Test
     public void testParseCardinal() {
@@ -20,4 +23,7 @@
     }
 
+    /**
+     * Unit test of method {@link RotationAngle#buildStaticRotation} - wrong parameter.
+     */
     @Test(expected = IllegalArgumentException.class)
     public void testParseFail() {
@@ -25,4 +31,7 @@
     }
 
+    /**
+     * Unit test of method {@link RotationAngle#buildStaticRotation} - null handling.
+     */
     @Test(expected = NullPointerException.class)
     public void testParseNull() {
Index: trunk/test/unit/org/openstreetmap/josm/tools/ImageProviderTest.java
===================================================================
--- trunk/test/unit/org/openstreetmap/josm/tools/ImageProviderTest.java	(revision 9229)
+++ trunk/test/unit/org/openstreetmap/josm/tools/ImageProviderTest.java	(revision 9231)
@@ -52,6 +52,9 @@
     }
 
+    /**
+     * Test fetching an image using {@code wiki://} protocol.
+     */
     @Test
-    public void testWikiProtocol() throws Exception {
+    public void testWikiProtocol() {
         // https://commons.wikimedia.org/wiki/File:OpenJDK_logo.svg
         assertNotNull(ImageProvider.get("wiki://OpenJDK_logo.svg"));