SPR-6788: fixed compareTo() consistency with equals

git-svn-id: https://src.springframework.org/svn/spring-framework/trunk@2921 50f2f4bb-b051-0410-bef5-90022cba6387

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

@@ -324,11 +324,15 @@ public class MediaType implements Comparable<MediaType> {
 		if (comp != 0) {
 			return comp;
 		}
-		Iterator<String> thisAttributes = new TreeSet<String>(this.parameters.keySet()).iterator();
-		Iterator<String> otherAttributes = new TreeSet<String>(other.parameters.keySet()).iterator();
-		while (thisAttributes.hasNext()) {
-			String thisAttribute = thisAttributes.next();
-			String otherAttribute = otherAttributes.next();
+		TreeSet<String> thisAttributes = new TreeSet<String>(String.CASE_INSENSITIVE_ORDER);
+		thisAttributes.addAll(this.parameters.keySet());
+		TreeSet<String> otherAttributes = new TreeSet<String>(String.CASE_INSENSITIVE_ORDER);
+		otherAttributes.addAll(other.parameters.keySet());
+		Iterator<String> thisAttributesIterator = thisAttributes.iterator();
+		Iterator<String> otherAttributesIterator = otherAttributes.iterator();
+		while (thisAttributesIterator.hasNext()) {
+			String thisAttribute = thisAttributesIterator.next();
+			String otherAttribute = otherAttributesIterator.next();
 			comp = thisAttribute.compareToIgnoreCase(otherAttribute);
 			if (comp != 0) {
 				return comp;
@@ -355,7 +359,7 @@ public class MediaType implements Comparable<MediaType> {
 			return false;
 		}
 		MediaType otherType = (MediaType) other;
-		return (this.type.equals(otherType.type) && this.subtype.equals(otherType.subtype) &&
+		return (this.type.equalsIgnoreCase(otherType.type) && this.subtype.equalsIgnoreCase(otherType.subtype) &&
 				this.parameters.equals(otherType.parameters));
 	}
 

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

@@ -214,6 +214,12 @@ public class MediaTypeTests {
 		assertEquals("Media types not equal", m1, m2);
 		assertEquals("compareTo() not consistent with equals", 0, m1.compareTo(m2));
 		assertEquals("compareTo() not consistent with equals", 0, m2.compareTo(m1));
+
+		m1 = MediaType.parseMediaType("text/html; q=0.7; charset=iso-8859-1");
+		m2 = MediaType.parseMediaType("text/html; Q=0.7; charset=iso-8859-1");
+		assertEquals("Media types not equal", m1, m2);
+		assertEquals("compareTo() not consistent with equals", 0, m1.compareTo(m2));
+		assertEquals("compareTo() not consistent with equals", 0, m2.compareTo(m1));
 	}
 
 	@Test
@@ -232,6 +238,8 @@ public class MediaTypeTests {
 		m2 = new MediaType("audio", "basic", Collections.singletonMap("foo", "Bar"));
 		assertTrue("Invalid comparison result", m1.compareTo(m2) != 0);
 		assertTrue("Invalid comparison result", m2.compareTo(m1) != 0);
+
+
 	}
 
 	@Test