Wrap InvalidMimeTypeException in HttpMediaTypeNotAcceptableException

The fix for #31254 resulted in an InvalidMimeTypeException being thrown
by MimeTypeUtils.sortBySpecificity() instead of an
IllegalArgumentException. However, InvalidMimeTypeException extends
IllegalArgumentException. Consequently, the change from
IllegalArgumentException to InvalidMimeTypeException did not result in
the desired effect in HeaderContentNegotiationStrategy.

HeaderContentNegotiationStrategy.resolveMediaTypes() still allows the
InvalidMimeTypeException to propagate as-is without wrapping it in an
HttpMediaTypeNotAcceptableException.

To address this issue, this commit catches InvalidMediaTypeException
and InvalidMimeTypeException in HeaderContentNegotiationStrategy and
wraps the exception in an HttpMediaTypeNotAcceptableException.

See gh-31254
See gh-31769
Closes gh-32483

spring-web/src/main/java/org/springframework/web/accept/HeaderContentNegotiationStrategy.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2018 the original author or authors.
+ * Copyright 2002-2024 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -23,6 +23,7 @@
 import org.springframework.http.InvalidMediaTypeException;
 import org.springframework.http.MediaType;
 import org.springframework.util.CollectionUtils;
+import org.springframework.util.InvalidMimeTypeException;
 import org.springframework.util.MimeTypeUtils;
 import org.springframework.web.HttpMediaTypeNotAcceptableException;
 import org.springframework.web.context.request.NativeWebRequest;
@@ -55,7 +56,7 @@ public List<MediaType> resolveMediaTypes(NativeWebRequest request)
 			MimeTypeUtils.sortBySpecificity(mediaTypes);
 			return !CollectionUtils.isEmpty(mediaTypes) ? mediaTypes : MEDIA_TYPE_ALL_LIST;
 		}
-		catch (InvalidMediaTypeException ex) {
+		catch (InvalidMediaTypeException | InvalidMimeTypeException ex) {
 			throw new HttpMediaTypeNotAcceptableException(
 					"Could not parse 'Accept' header " + headerValues + ": " + ex.getMessage());
 		}

spring-web/src/test/java/org/springframework/web/accept/HeaderContentNegotiationStrategyTests.java

@@ -34,6 +34,7 @@
  *
  * @author Rossen Stoyanchev
  * @author Juergen Hoeller
+ * @author Sam Brannen
  */
 class HeaderContentNegotiationStrategyTests {
 
@@ -63,6 +64,27 @@ void resolveMediaTypesFromMultipleHeaderValues() throws Exception {
 				.containsExactly("text/html", "text/x-c", "text/x-dvi;q=0.8", "text/plain;q=0.5");
 	}
 
+	@Test  // gh-32483
+	void resolveMediaTypesWithMaxElements() throws Exception {
+		String acceptHeaderValue = "text/plain, text/html,".repeat(25);
+		this.servletRequest.addHeader("Accept", acceptHeaderValue);
+		List<MediaType> mediaTypes = this.strategy.resolveMediaTypes(this.webRequest);
+
+		assertThat(mediaTypes).hasSize(50);
+		assertThat(mediaTypes.stream().map(Object::toString).distinct())
+				.containsExactly("text/plain", "text/html");
+	}
+
+	@Test  // gh-32483
+	void resolveMediaTypesWithTooManyElements() {
+		String acceptHeaderValue = "text/plain,".repeat(51);
+		this.servletRequest.addHeader("Accept", acceptHeaderValue);
+		assertThatExceptionOfType(HttpMediaTypeNotAcceptableException.class)
+				.isThrownBy(() -> this.strategy.resolveMediaTypes(this.webRequest))
+				.withMessageStartingWith("Could not parse 'Accept' header")
+				.withMessageEndingWith("Too many elements");
+	}
+
 	@Test
 	void resolveMediaTypesParseError() {
 		this.servletRequest.addHeader("Accept", "textplain; q=0.5");