Avoid NPE on comment SSE event

Closes gh-24389
2020-01-20 11:26:58 +00:00
parent c20a7b4636
commit 5d8c5b0d9b
2 changed files with 17 additions and 3 deletions
--- a/spring-web/src/test/java/org/springframework/http/codec/ServerSentEventHttpMessageReaderTests.java
+++ b/spring-web/src/test/java/org/springframework/http/codec/ServerSentEventHttpMessageReaderTests.java
@@ -161,6 +161,17 @@ public class ServerSentEventHttpMessageReaderTests extends AbstractLeakCheckingT
 				.verify();
 	}

+	@Test // gh-24389
+	void readPojoWithCommentOnly() {
+		MockServerHttpRequest request = MockServerHttpRequest.post("/")
+				.body(Flux.just(stringBuffer(":ping\n"), stringBuffer("\n")));
+
+		Flux<Object> data = this.reader.read(
+				ResolvableType.forType(String.class), request, Collections.emptyMap());
+
+		StepVerifier.create(data).expectComplete().verify();
+	}
+
 	@Test  // SPR-15331
 	public void decodeFullContentAsString() {
 		String body = "data:foo\ndata:bar\n\ndata:baz\n\n";