Merge pull request spring-projects#9989 from blasd:1.5.x

* pr/9989:
  Polish "Add missing dependency management for Jetty"
  Add missing dependency management for Jetty

Author: snicoll

spring-boot-dependencies/pom.xml

@@ -1635,6 +1635,11 @@
 				<artifactId>javax.servlet.jsp</artifactId>
 				<version>${jetty-jsp.version}</version>
 			</dependency>
+			<dependency>
+				<groupId>org.eclipse.jetty.websocket</groupId>
+				<artifactId>javax-websocket-client-impl</artifactId>
+				<version>${jetty.version}</version>
+			</dependency>
 			<dependency>
 				<groupId>org.eclipse.jetty.websocket</groupId>
 				<artifactId>javax-websocket-server-impl</artifactId>
@@ -1650,6 +1655,11 @@
 				<artifactId>websocket-server</artifactId>
 				<version>${jetty.version}</version>
 			</dependency>
+			<dependency>
+				<groupId>org.eclipse.jetty.websocket</groupId>
+				<artifactId>websocket-servlet</artifactId>
+				<version>${jetty.version}</version>
+			</dependency>
 			<dependency>
 				<groupId>org.ehcache</groupId>
 				<artifactId>ehcache</artifactId>