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Dalamar42/promise_exception.java

Created September 7, 2016 10:08
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promise_exception.java
String output = "value";
ListenableFuture<String> future = Futures.immediateFuture(output);
Optional<String> transformedOutput = Promise.wrap(future)
.then(value -> value + "_a")
.then(value -> value + "_b")
.get(exception -> log.error(exception.getMessage()));
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