SPR-7869 - Accept-Charset header with '*' results in java.nio.charset.IllegalCharsetNameException

org.springframework.web/src/main/java/org/springframework/http/HttpHeaders.java

@@ -177,11 +177,15 @@ public class HttpHeaders implements MultiValueMap<String, String> {
 			String[] tokens = value.split(",\\s*");
 			for (String token : tokens) {
 				int paramIdx = token.indexOf(';');
+				String charsetName;
 				if (paramIdx == -1) {
-					result.add(Charset.forName(token));
+					charsetName = token;
 				}
 				else {
-					result.add(Charset.forName(token.substring(0, paramIdx)));
+					charsetName = token.substring(0, paramIdx);
+				}
+				if (!charsetName.equals("*")) {
+					result.add(Charset.forName(charsetName));
 				}
 			}
 		}

org.springframework.web/src/test/java/org/springframework/http/HttpHeadersTests.java

@@ -20,6 +20,7 @@ import java.net.URI;
 import java.net.URISyntaxException;
 import java.nio.charset.Charset;
 import java.util.ArrayList;
+import java.util.Arrays;
 import java.util.Calendar;
 import java.util.EnumSet;
 import java.util.GregorianCalendar;
@@ -66,6 +67,13 @@ public class HttpHeadersTests {
 		assertEquals("Invalid Accept header", "utf-8, iso-8859-1", headers.getFirst("Accept-Charset"));
 	}
 
+	@Test
+	public void acceptCharsetWildcard() {
+		headers.set("Accept-Charset", "ISO-8859-1,utf-8;q=0.7,*;q=0.7");
+		assertEquals("Invalid Accept header", Arrays.asList(Charset.forName("ISO-8859-1"), Charset.forName("UTF-8")),
+				headers.getAcceptCharset());
+	}
+
 	@Test
 	public void allow() {
 		EnumSet<HttpMethod> methods = EnumSet.of(HttpMethod.GET, HttpMethod.POST);
@@ -222,11 +230,12 @@ public class HttpHeadersTests {
 	@Test
 	public void contentDisposition() {
 		headers.setContentDispositionFormData("name", null);
-		assertEquals("Invalid Content-Disposition header", "form-data; name=\"name\"", headers.getFirst("Content-Disposition"));
-
+		assertEquals("Invalid Content-Disposition header", "form-data; name=\"name\"",
+				headers.getFirst("Content-Disposition"));
 
 		headers.setContentDispositionFormData("name", "filename");
-		assertEquals("Invalid Content-Disposition header", "form-data; name=\"name\"; filename=\"filename\"", headers.getFirst("Content-Disposition"));
+		assertEquals("Invalid Content-Disposition header", "form-data; name=\"name\"; filename=\"filename\"",
+				headers.getFirst("Content-Disposition"));
 	}