Index: /luni/src/main/java/java/lang/StringBuilder.java =================================================================== --- /luni/src/main/java/java/lang/StringBuilder.java (revision 395760) +++ /luni/src/main/java/java/lang/StringBuilder.java (working copy) @@ -44,10 +44,8 @@ * * @author Nathan Beyer (Harmony) */ -public final class StringBuilder implements CharSequence, Serializable { +public final class StringBuilder implements Appendable, CharSequence, Serializable { - // TODO add 'implements Appendable' (see HARMONY-103) - private static final long serialVersionUID = 4383685877147921099L; private static final String EMPTY_STRING = ""; //$NON-NLS-1$