Fix JDK 9

Issue: gh-5160

web/spring-security-web.gradle

@@ -21,12 +21,12 @@ dependencies {
 	testCompile project(path: ':spring-security-core', configuration: 'tests')
 	testCompile 'commons-codec:commons-codec'
 	testCompile 'io.projectreactor:reactor-test'
+	testCompile 'javax.xml.bind:jaxb-api'
 	testCompile 'org.codehaus.groovy:groovy-all'
 	testCompile 'org.skyscreamer:jsonassert'
 	testCompile 'org.springframework:spring-webflux'
 	testCompile powerMock2Dependencies
 	testCompile spockDependencies
-	testCompile slf4jDependencies
 
 	testRuntime 'org.hsqldb:hsqldb'
 }