Update to Jetty 9.4.27

Fixes gh-7507

gradle/dependency-management.gradle

@@ -151,17 +151,17 @@ dependencyManagement {
 		dependency 'org.codehaus.groovy:groovy-json:2.4.17'
 		dependency 'org.codehaus.groovy:groovy:2.4.14'
 		dependency 'org.eclipse.jdt:ecj:3.12.3'
-		dependency 'org.eclipse.jetty.websocket:websocket-api:9.4.19.v20190610'
-		dependency 'org.eclipse.jetty.websocket:websocket-client:9.4.19.v20190610'
-		dependency 'org.eclipse.jetty.websocket:websocket-common:9.4.19.v20190610'
-		dependency 'org.eclipse.jetty:jetty-client:9.4.19.v20190610'
-		dependency 'org.eclipse.jetty:jetty-http:9.4.19.v20190610'
-		dependency 'org.eclipse.jetty:jetty-io:9.4.19.v20190610'
-		dependency 'org.eclipse.jetty:jetty-security:9.4.19.v20190610'
-		dependency 'org.eclipse.jetty:jetty-server:9.4.19.v20190610'
-		dependency 'org.eclipse.jetty:jetty-servlet:9.4.19.v20190610'
-		dependency 'org.eclipse.jetty:jetty-util:9.4.19.v20190610'
-		dependency 'org.eclipse.jetty:jetty-xml:9.4.19.v20190610'
+		dependency 'org.eclipse.jetty.websocket:websocket-api:9.4.27.v20200227'
+		dependency 'org.eclipse.jetty.websocket:websocket-client:9.4.27.v20200227'
+		dependency 'org.eclipse.jetty.websocket:websocket-common:9.4.27.v20200227'
+		dependency 'org.eclipse.jetty:jetty-client:9.4.27.v20200227'
+		dependency 'org.eclipse.jetty:jetty-http:9.4.27.v20200227'
+		dependency 'org.eclipse.jetty:jetty-io:9.4.27.v20200227'
+		dependency 'org.eclipse.jetty:jetty-security:9.4.27.v20200227'
+		dependency 'org.eclipse.jetty:jetty-server:9.4.27.v20200227'
+		dependency 'org.eclipse.jetty:jetty-servlet:9.4.27.v20200227'
+		dependency 'org.eclipse.jetty:jetty-util:9.4.27.v20200227'
+		dependency 'org.eclipse.jetty:jetty-xml:9.4.27.v20200227'
 		dependency 'org.eclipse.persistence:javax.persistence:2.2.1'
 		dependency 'org.gebish:geb-ast:0.10.0'
 		dependency 'org.gebish:geb-core:0.10.0'

samples/xml/cas/cassample/src/integration-test/groovy/org/springframework/security/samples/cas/JettyCasService.groovy

@@ -66,7 +66,7 @@ class JettyCasService extends Server {
 		String password = System.getProperty('javax.net.ssl.trustStorePassword','password')
 
 
-		SslContextFactory sslContextFactory = new SslContextFactory();
+		SslContextFactory sslContextFactory = new SslContextFactory.Server();
 		sslContextFactory.setKeyStorePath(getTrustStore());
 		sslContextFactory.setKeyStorePassword(password);
 		sslContextFactory.setKeyManagerPassword(password);