/guava/guava/src/com/google/common/util/concurrent/AbstractCatchingFuture.java
return fallback.apply ( cause ) ;
Function<? super X, ? extends V> fallback) { super(input, exceptionType, fallback); } @Override @ParametricNullness V doFallback(Function<? super X, ? extends V> fallback, X cause) throws Exception { <extra_id_0> } @Override void setResult(@ParametricNullness V result) { set(result); } }