SEC-2194: Add Java Config samples

samples/preauth-xml/preauth.gradle

@@ -0,0 +1,27 @@
+// Preauth sample build file
+
+apply plugin: 'war'
+apply plugin: 'jetty'
+
+def excludeModules = ['jsr250-api', 'ehcache', 'spring-jdbc', 'spring-tx']
+
+configurations {
+    excludeModules.each {name ->
+        runtime.exclude module: name
+    }
+
+    runtime.exclude group: 'org.aspectj'
+}
+
+dependencies {
+
+    runtime project(':spring-security-web'),
+            project(':spring-security-config'),
+            "org.slf4j:jcl-over-slf4j:$slf4jVersion",
+            "ch.qos.logback:logback-classic:$logbackVersion"
+}
+
+jettyRun {
+    contextPath = "/preauth"
+    userRealms = [jettyRun.class.classLoader.loadClass('org.mortbay.jetty.security.HashUserRealm').newInstance('Preauth Realm', "$projectDir/realm.properties")]
+}