I use two day old Jforex_SDK and try IClient. After connection I want to subscribe instrument. Code is from this page:

https://www.dukascopy.com/wiki/en/devel ... nstruments

Set<Instrument> instruments = new HashSet<Instrument>();
instruments.add(Instrument.EURUSD);
LOGGER.info("Subscribing instruments...");
client.setSubscribedInstruments(instruments);

I receive this error:

Exception in thread "main" java.lang.NoSuchMethodError: com.google.common.util.concurrent.MoreExecutors.newDirectExecutorService()Lcom/google/common/util/concurrent/ListeningExecutorService;
at com.dukascopy.api.instrument.subscribe.InstrumentManager.doSubscribe(InstrumentManager.java:261)
at com.dukascopy.api.instrument.subscribe.InstrumentManager.doSubscribeFullDepth(InstrumentManager.java:217)
at com.dukascopy.api.instrument.subscribe.InstrumentManager.addToFullDepthSubscribed(InstrumentManager.java:121)
at com.dukascopy.api.impl.connect.DCClientImpl$10.run(DCClientImpl.java:1382)
at com.dukascopy.api.impl.connect.DCClientImpl$10.run(DCClientImpl.java:1360)
at java.security.AccessController.doPrivileged(Native Method)
at com.dukascopy.api.impl.connect.DCClientImpl.setSubscribedInstruments(DCClientImpl.java:1360)
at cz.vhr.dkcpmain.htickssaving.HistoryTicksFactory.saveHistoryTicks(HistoryTicksFactory.java:118)
at cz.vhr.strmain.ticksdata.TicksDataFactory.checkAndSaveMissingTicks(TicksDataFactory.java:160)
at cz.vhr.strmain.ticksdata.TicksDataFactory.checkAndSaveMissingTicks(TicksDataFactory.java:42)
at cz.vhr.bac.Tests$SimpleTests2.test_checkAndSaveMissingTicks(BAC35.java:1830)
at cz.vhr.bac.BAC35.main_execute(BAC35.java:717)
at cz.vhr.bac.BAC35.main(BAC35.java:503)
c.d.d.t.c.n.ClientConnector - State processing error: com.google.common.util.concurrent.MoreExecutors.newDirectExecutorService()Lcom/google/common/util/concurrent/ListeningExecutorService;
java.lang.NoSuchMethodError: com.google.common.util.concurrent.MoreExecutors.newDirectExecutorService()Lcom/google/common/util/concurrent/ListeningExecutorService;
at com.dukascopy.dds4.transport.client.netty.ClientConnector.sendPingRequest(ClientConnector.java:635)
at com.dukascopy.dds4.transport.client.netty.ClientConnector.processOnline(ClientConnector.java:448)
at com.dukascopy.dds4.transport.client.netty.ClientConnector.run(ClientConnector.java:295)

Could you help?

Thank you

This happens when correct guava library is missing from jClients dependencies. Forcing usage of different guava version may also cause this.

You are right. It was different guava version conflict. I made several exlusions in pom.xml and all is OK. Thank you.