clone() modernization.

Apologies for the redundant cast warnings this is sure to introduce.


git-svn-id: svn+ssh://src.earth.threerings.net/narya/trunk@6015 542714f4-19e9-0310-aa3c-eee0fc999fb1

src/java/com/threerings/crowd/data/OccupantInfo.java

@@ -125,12 +125,12 @@ public class OccupantInfo extends SimpleStreamableObject
     }
 
     @Override
-    public Object clone ()
+    public OccupantInfo clone ()
     {
         try {
-            return super.clone();
+            return (OccupantInfo) super.clone();
         } catch (CloneNotSupportedException cnse) {
-            throw new RuntimeException(cnse);
+            throw new AssertionError(cnse);
         }
     }
 }

src/java/com/threerings/presents/data/ConMgrStats.java

@@ -74,12 +74,12 @@ public class ConMgrStats extends SimpleStreamableObject
     public long msgsOut;
 
     @Override // from Object
-    public Object clone ()
+    public ConMgrStats clone ()
     {
         try {
-            return super.clone();
+            return (ConMgrStats) super.clone();
         } catch (CloneNotSupportedException cnse) {
-            throw new RuntimeException(cnse);
+            throw new AssertionError(cnse);
         }
     }
 }

src/java/com/threerings/presents/dobj/DSet.java

@@ -438,7 +438,7 @@ public class DSet<E extends DSet.Entry>
             nset._modCount = 0;
             return nset;
         } catch (CloneNotSupportedException cnse) {
-            throw new RuntimeException(cnse);
+            throw new AssertionError(cnse);
         }
     }
 
@@ -446,7 +446,7 @@ public class DSet<E extends DSet.Entry>
      * Generates a shallow copy of this object.
      */
     @Override
-    public Object clone ()
+    public DSet<E> clone ()
     {
         return typedClone();
     }

src/java/com/threerings/util/StreamableEnumSet.java

@@ -88,9 +88,7 @@ public class StreamableEnumSet<E extends Enum<E>> extends AbstractSet<E>
      */
     public static <E extends Enum<E>> StreamableEnumSet<E> copyOf (StreamableEnumSet<E> s)
     {
-        @SuppressWarnings("unchecked") StreamableEnumSet<E> set =
-            (StreamableEnumSet<E>)s.clone();
-        return set;
+        return s.clone();
     }
 
     /**
@@ -243,16 +241,17 @@ public class StreamableEnumSet<E extends Enum<E>> extends AbstractSet<E>
     }
 
     @Override // documentation inherited
-    public Object clone ()
+    public StreamableEnumSet<E> clone ()
     {
         try {
             // make a deep clone of the contents
-            @SuppressWarnings("unchecked") StreamableEnumSet<E> cset = (StreamableEnumSet<E>)super.clone();
+            @SuppressWarnings("unchecked")
+            StreamableEnumSet<E> cset = (StreamableEnumSet<E>)super.clone();
             cset._contents = _contents.clone();
             return cset;
 
         } catch (CloneNotSupportedException e) {
-            return null; // won't happen
+            throw new AssertionError(e); // won't happen
         }
     }