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Fix NPE in IoTDiscoveryManager
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1 changed files with 5 additions and 2 deletions
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@ -36,6 +36,7 @@ import org.jivesoftware.smack.XMPPException.XMPPErrorException;
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import org.jivesoftware.smack.iqrequest.AbstractIqRequestHandler;
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import org.jivesoftware.smack.iqrequest.IQRequestHandler.Mode;
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import org.jivesoftware.smack.packet.IQ;
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import org.jivesoftware.smack.util.Objects;
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import org.jivesoftware.smackx.disco.ServiceDiscoveryManager;
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import org.jivesoftware.smackx.disco.packet.DiscoverInfo;
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import org.jivesoftware.smackx.iot.Thing;
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@ -202,7 +203,7 @@ public final class IoTDiscoveryManager extends Manager {
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/**
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* Try to find an XMPP IoT registry.
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*
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* @return the JID of a Thing Registry if one could be found.
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* @return the JID of a Thing Registry if one could be found, <code>null</code> otherwise.
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* @throws InterruptedException
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* @throws NotConnectedException
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* @throws XMPPErrorException
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@ -373,9 +374,11 @@ public final class IoTDiscoveryManager extends Manager {
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// Registry utility methods
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public boolean isRegistry(BareJid jid) throws NoResponseException, XMPPErrorException, NotConnectedException, InterruptedException {
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Objects.requireNonNull(jid, "JID argument must not be null");
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// At some point 'usedRegistries' will also contain the registry returned by findRegistry(), but since this is
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// not the case from the beginning, we perform findRegistry().equals(jid) too.
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if (findRegistry().equals(jid)) {
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Jid registry = findRegistry();
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if (jid.equals(registry)) {
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return true;
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}
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if (usedRegistries.contains(jid)) {
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