/guava/android/guava/src/com/google/common/base/Joiner.java
return new MapJoiner( keyValueSeparator.useForNull( nullText) , joiner) ;
return new MapJoiner ( joiner.useForNull ( nullText ) , keyValueSeparator ) ;
return join(entries.iterator()); } public String join(Iterator<? extends Entry<?, ?>> entries) { return appendTo(new StringBuilder(), entries).toString(); } public MapJoiner useForNull(String nullText) { <extra_id_0> } } CharSequence toString(@CheckForNull Object part) { requireNonNull(part); return (part instanceof CharSequence) ? (CharSequence) part : part.toString(); }