ManagedChannelImpl@8e4bb0] Created with target language.googleapis.com:443 Exception in thread "main" java.lang.NoSuchMethodError #587

	<dependency>
		<groupId>com.google.cloud</groupId>
		<artifactId>google-cloud-language</artifactId>
		<version>0.9.4-alpha</version>
	</dependency>

            //Instanciate a client
	LanguageServiceClient language = LanguageServiceClient.create();

	//Text to analyze
	String text = "Hello world";
	Document doc = Document.newBuilder().setContent(text).setType(Type.PLAIN_TEXT).build();

	//Detect the sentiment
	Sentiment sentiment = language.analyzeSentiment(doc).getDocumentSentiment();

	System.out.printf("Text: %s%n", text);
	System.out.printf("Sentiment: %s, %s%n", sentiment.getScore(), sentiment.getMagnitude());

log4j:WARN No appenders could be found for logger (io.netty.util.internal.logging.InternalLoggerFactory).
log4j:WARN Please initialize the log4j system properly.
log4j:WARN See http://logging.apache.org/log4j/1.2/faq.html#noconfig for more info.
mars 29, 2017 12:26:59 PM io.grpc.internal.ManagedChannelImpl <init>
INFOS: [ManagedChannelImpl@8e4bb0] Created with target language.googleapis.com:443
Exception in thread "main" java.lang.NoSuchMethodError: com.google.common.util.concurrent.MoreExecutors.directExecutor()Ljava/util/concurrent/Executor;
	at io.grpc.internal.ClientCallImpl.<init>(ClientCallImpl.java:103)
	at io.grpc.internal.ManagedChannelImpl$RealChannel.newCall(ManagedChannelImpl.java:556)
	at io.grpc.auth.ClientAuthInterceptor.interceptCall(ClientAuthInterceptor.java:82)
	at io.grpc.ClientInterceptors$InterceptorChannel.newCall(ClientInterceptors.java:120)
	at com.google.api.gax.grpc.HeaderInterceptor.interceptCall(HeaderInterceptor.java:57)
	at io.grpc.ClientInterceptors$InterceptorChannel.newCall(ClientInterceptors.java:120)
	at io.grpc.internal.ManagedChannelImpl.newCall(ManagedChannelImpl.java:535)
	at com.google.api.gax.grpc.DescriptorClientCallFactory.newCall(DescriptorClientCallFactory.java:54)
	at com.google.api.gax.grpc.DirectCallable.futureCall(DirectCallable.java:60)
	at com.google.api.gax.grpc.ExceptionTransformingCallable.futureCall(ExceptionTransformingCallable.java:62)
	at com.google.api.gax.grpc.RetryingCallable$RetryingResultFuture.issueCall(RetryingCallable.java:216)
	at com.google.api.gax.grpc.RetryingCallable.futureCall(RetryingCallable.java:84)
	at com.google.api.gax.grpc.UnaryCallable.futureCall(UnaryCallable.java:243)
	at com.google.api.gax.grpc.UnaryCallable.futureCall(UnaryCallable.java:254)
	at com.google.api.gax.grpc.UnaryCallable.call(UnaryCallable.java:282)
	at com.google.cloud.language.spi.v1.LanguageServiceClient.analyzeSentiment(LanguageServiceClient.java:213)
	at com.google.cloud.language.spi.v1.LanguageServiceClient.analyzeSentiment(LanguageServiceClient.java:190)
	at com.atchikrealtime.product.moderation.google.test.GoogleTest.myNaturalLanguageTest(GoogleTest.java:402)
	at com.atchikrealtime.product.moderation.google.test.GoogleTest.main(GoogleTest.java:259)