Add duplicate plugin. Remove class duplicates. (#1047)

spring-cloud-context/pom.xml

@@ -55,6 +55,12 @@
 			<groupId>org.springframework.integration</groupId>
 			<artifactId>spring-integration-jmx</artifactId>
 			<optional>true</optional>
+			<exclusions>
+				<exclusion>
+					<groupId>javax.annotation</groupId>
+					<artifactId>javax.annotation-api</artifactId>
+				</exclusion>
+			</exclusions>
 		</dependency>
 		<dependency>
 			<groupId>org.springframework.boot</groupId>