Clean up warnings in Gradle build

Author: sbrannen

spring-context/src/test/java/org/springframework/context/i18n/LocaleContextThreadLocalAccessorTests.java

@@ -51,6 +51,7 @@ void cleanUp() {
 
 	@ParameterizedTest
 	@MethodSource
+	@SuppressWarnings("try")
 	void propagation(@Nullable LocaleContext previous, LocaleContext current) throws Exception {
 		LocaleContextHolder.setLocaleContext(current);
 		ContextSnapshot snapshot = ContextSnapshotFactory.builder()

spring-websocket/src/test/java/org/springframework/web/socket/messaging/WebSocketStompClientTests.java

@@ -278,6 +278,7 @@ void sendWebSocketBinaryExceedOutboundMessageSizeLimit() throws Exception {
 	}
 
 	@Test
+	@SuppressWarnings({ "rawtypes", "unchecked" })
 	void reassembleReceivedIFragmentedFrames() throws Exception {
 		WebSocketHandler handler = connect();
 		handler.handleMessage(this.webSocketSession, new TextMessage("SEND\ndestination:/topic/foo\nco"));