Polish Using Request ServletContext

Issue gh-14418

Author: jzheaux

config/src/main/java/org/springframework/security/config/annotation/web/AbstractRequestMatcherRegistry.java

@@ -447,18 +447,12 @@ public boolean matches(HttpServletRequest request) {
 
 	static class DispatcherServletRequestMatcher implements RequestMatcher {
 
-		private final ServletContext servletContext;
-
-		DispatcherServletRequestMatcher(ServletContext servletContext) {
-			this.servletContext = servletContext;
-		}
-
 		@Override
 		public boolean matches(HttpServletRequest request) {
 			String name = request.getHttpServletMapping().getServletName();
-			ServletRegistration registration = this.servletContext.getServletRegistration(name);
+			ServletRegistration registration = request.getServletContext().getServletRegistration(name);
 			Assert.notNull(registration,
-					() -> computeErrorMessage(this.servletContext.getServletRegistrations().values()));
+					() -> computeErrorMessage(request.getServletContext().getServletRegistrations().values()));
 			try {
 				Class<?> clazz = Class.forName(registration.getClassName());
 				return DispatcherServlet.class.isAssignableFrom(clazz);
@@ -478,10 +472,8 @@ static class DispatcherServletDelegatingRequestMatcher implements RequestMatcher
 
 		private final RequestMatcher dispatcherServlet;
 
-		DispatcherServletDelegatingRequestMatcher(AntPathRequestMatcher ant, MvcRequestMatcher mvc,
-				ServletContext servletContext) {
-			this(ant, mvc, new OrRequestMatcher(new MockMvcRequestMatcher(),
-					new DispatcherServletRequestMatcher(servletContext)));
+		DispatcherServletDelegatingRequestMatcher(AntPathRequestMatcher ant, MvcRequestMatcher mvc) {
+			this(ant, mvc, new OrRequestMatcher(new MockMvcRequestMatcher(), new DispatcherServletRequestMatcher()));
 		}
 
 		DispatcherServletDelegatingRequestMatcher(AntPathRequestMatcher ant, MvcRequestMatcher mvc,

config/src/test/java/org/springframework/security/config/annotation/web/AbstractRequestMatcherRegistryTests.java

@@ -318,7 +318,7 @@ public void requestMatchersWhenPathBasedNonDispatcherServletThenAllows() {
 		List<RequestMatcher> requestMatchers = this.matcherRegistry.requestMatchers("/services/*");
 		assertThat(requestMatchers).hasSize(1);
 		assertThat(requestMatchers.get(0)).isInstanceOf(DispatcherServletDelegatingRequestMatcher.class);
-		MockHttpServletRequest request = new MockHttpServletRequest("GET", "/services/endpoint");
+		MockHttpServletRequest request = new MockHttpServletRequest(servletContext, "GET", "/services/endpoint");
 		request.setHttpServletMapping(TestMockHttpServletMappings.defaultMapping());
 		assertThat(requestMatchers.get(0).matcher(request).isMatch()).isTrue();
 		request.setHttpServletMapping(TestMockHttpServletMappings.path(request, "/services"));
@@ -334,9 +334,8 @@ public void matchesWhenDispatcherServletThenMvc() {
 		servletContext.addServlet("path", Servlet.class).addMapping("/services/*");
 		MvcRequestMatcher mvc = mock(MvcRequestMatcher.class);
 		AntPathRequestMatcher ant = mock(AntPathRequestMatcher.class);
-		DispatcherServletDelegatingRequestMatcher requestMatcher = new DispatcherServletDelegatingRequestMatcher(ant,
-				mvc, servletContext);
-		MockHttpServletRequest request = new MockHttpServletRequest("GET", "/services/endpoint");
+		RequestMatcher requestMatcher = new DispatcherServletDelegatingRequestMatcher(ant, mvc);
+		MockHttpServletRequest request = new MockHttpServletRequest(servletContext, "GET", "/services/endpoint");
 		request.setHttpServletMapping(TestMockHttpServletMappings.defaultMapping());
 		assertThat(requestMatcher.matches(request)).isFalse();
 		verify(mvc).matches(request);
@@ -354,9 +353,8 @@ public void matchesWhenNoMappingThenException() {
 		servletContext.addServlet("path", Servlet.class).addMapping("/services/*");
 		MvcRequestMatcher mvc = mock(MvcRequestMatcher.class);
 		AntPathRequestMatcher ant = mock(AntPathRequestMatcher.class);
-		DispatcherServletDelegatingRequestMatcher requestMatcher = new DispatcherServletDelegatingRequestMatcher(ant,
-				mvc, servletContext);
-		MockHttpServletRequest request = new MockHttpServletRequest("GET", "/services/endpoint");
+		RequestMatcher requestMatcher = new DispatcherServletDelegatingRequestMatcher(ant, mvc);
+		MockHttpServletRequest request = new MockHttpServletRequest(servletContext, "GET", "/services/endpoint");
 		assertThatExceptionOfType(IllegalArgumentException.class).isThrownBy(() -> requestMatcher.matcher(request));
 	}