JDK 11 Compatibility

Upgraded dependencies and removed a test in the Java Config LDAP
sample which is arguably an integration test since it starts up an
LDAP container. This test also isn't JDK 11 compatible and the
remaining integration tests in the sample cover the same material.

Issue: gh-5860

samples/xml/cas/casserver/spring-security-samples-xml-casserver.gradle

@@ -1,5 +1,3 @@
-import org.apache.tools.ant.filters.ReplaceTokens
-
 apply plugin: 'io.spring.convention.spring-sample-war'
 
 def keystore = "$rootDir/samples/certificates/server.jks"
@@ -8,6 +6,9 @@ def password = 'password'
 dependencies {
 	compile "org.jasig.cas:cas-server-webapp:4.0.0@war"
 	compile slf4jDependencies
+	runtime 'org.aspectj:aspectjrt'
+	runtime 'org.aspectj:aspectjtools'
+	runtime 'org.aspectj:aspectjweaver'
 }
 
 project.tasks.withType(org.gradle.api.tasks.bundling.War) { war ->