。。。

pom.xml

@@ -45,6 +45,11 @@
 				<type>pom</type>
 				<scope>import</scope>
 			</dependency>
+			<dependency>
+				<groupId>com.google.guava</groupId>
+				<artifactId>guava</artifactId>
+				<version>23.0</version>
+			</dependency>
 		</dependencies>
 	</dependencyManagement>