/guava/guava/src/com/google/common/base/Joiner.java
appendable.append( joiner.separator) ;appendable.append( separator) ;
appendable.append ( separator ) ;
public <A extends Appendable> A appendTo(A appendable, Iterator<? extends @Nullable Object> parts) throws IOException { checkNotNull(appendable); if (parts.hasNext()) { appendable.append(toString(parts.next())); while (parts.hasNext()) { <extra_id_0> appendable.append(toString(parts.next())); } } return appendable; } @CanIgnoreReturnValue