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Handle null hostNames in DnsDiscovery (some NP have that).

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Matt Corallo 2013-06-07 12:45:46 +02:00 committed by Mike Hearn
parent c9d411e8e7
commit 518b7edcbd
1 changed files with 3 additions and 0 deletions
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core/src/main/java/com/google/bitcoin/discovery/DnsDiscovery.java
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@ -67,6 +67,9 @@ public class DnsDiscovery implements PeerDiscovery {
} }
public InetSocketAddress[] getPeers(long timeoutValue, TimeUnit timeoutUnit) throws PeerDiscoveryException { public InetSocketAddress[] getPeers(long timeoutValue, TimeUnit timeoutUnit) throws PeerDiscoveryException {
if (hostNames == null)
throw new PeerDiscoveryException("Unable to find any peers via DNS");
// Java doesn't have an async DNS API so we have to do all lookups in a thread pool, as sometimes seeds go // Java doesn't have an async DNS API so we have to do all lookups in a thread pool, as sometimes seeds go
// hard down and it takes ages to give up and move on. // hard down and it takes ages to give up and move on.
ExecutorService threadPool = Executors.newFixedThreadPool(hostNames.length); ExecutorService threadPool = Executors.newFixedThreadPool(hostNames.length);