Add websocket-authentication sample

websocket-authentication/build.gradle

@@ -0,0 +1,41 @@
+plugins {
+	id 'java'
+	id 'org.springframework.boot' version '3.3.0'
+	id 'io.spring.dependency-management' version '1.1.4'
+}
+
+group = 'com.example'
+version = '0.0.1-SNAPSHOT'
+
+java {
+	sourceCompatibility = '17'
+}
+
+repositories {
+	mavenLocal()
+	mavenCentral()
+}
+
+dependencies {
+	implementation 'org.springframework.boot:spring-boot-starter-graphql'
+	implementation 'org.springframework.boot:spring-boot-starter-web'		// Comment out for WebFlux
+	implementation 'org.springframework.boot:spring-boot-starter-websocket'	// Comment out for WebFlux
+	implementation 'org.springframework.boot:spring-boot-starter-webflux'
+
+	implementation 'org.springframework.boot:spring-boot-starter-security'
+	implementation 'org.springframework.security:spring-security-oauth2-jose'
+	implementation 'org.springframework.security:spring-security-oauth2-resource-server'
+
+	testImplementation 'org.springframework.boot:spring-boot-starter-test'
+	testImplementation 'io.projectreactor:reactor-test'
+	testImplementation 'org.springframework.graphql:spring-graphql-test'
+}
+
+tasks.register('clientRun', JavaExec) {
+	classpath = sourceSets.main.runtimeClasspath
+	mainClass = 'com.example.greeting.GreetingClient'
+}
+
+tasks.named('test') {
+	useJUnitPlatform()
+}