Support case-insensitive null literals in SpEL

Prior to this commit null literals in SpEL expressions had to be specified as "null" (i.e., all lowercase). With this commit null literals in SpEL expressions are interpreted in a case-insensitive manner, analogous to the current support for boolean literals. Issue: SPR-9613
mosoft521 · Aug 3, 2012 · a7418f4 · a7418f4
1 parent 529e629
commit a7418f4
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Showing 3 changed files with 134 additions and 120 deletions.
diff --git a/.../main/java/org/springframework/expression/spel/standard/InternalSpelExpressionParser.java b/.../main/java/org/springframework/expression/spel/standard/InternalSpelExpressionParser.java
@@ -513,7 +513,7 @@ private boolean maybeEatTypeReference() {
 	private boolean maybeEatNullReference() {
 		if (peekToken(TokenKind.IDENTIFIER)) {
 			Token nullToken = peekToken();
-			if (!nullToken.stringValue().equals("null")) {
+			if (!nullToken.stringValue().toLowerCase().equals("null")) {
 				return false;
 			}
 			nextToken();