Improve exceptions for multi-operand expressions [SPR-10146]

[spring-projects-issues]

Gary Russell opened SPR-10146 and commented

Malformed SpEL Expression causes an NPE...

new SpelExpressionParser().parseExpression("/foo");

Exception in thread "main" java.lang.NullPointerException
	at org.springframework.expression.spel.ast.SpelNodeImpl.<init>(SpelNodeImpl.java:50)
	at org.springframework.expression.spel.ast.Operator.<init>(Operator.java:32)
	at org.springframework.expression.spel.ast.OpDivide.<init>(OpDivide.java:34)
	at org.springframework.expression.spel.standard.InternalSpelExpressionParser.eatProductExpression(InternalSpelExpressionParser.java:224)
...

(null left operand for divide operator).

---

Affects: 3.2 GA

Reference URL: http://forum.springsource.org/showthread.php?133818-Can-t-create-bean-of-FtpOutboundGateway

Issue Links:

• SpEl does not support conjunction (&&) and disjunction (||) logic [SPR-7652] #12308 SpEl does not support conjunction (&&) and disjunction (||) logic

Referenced from: commits bff36fb

[spring-projects-issues]

Phil Webb commented

This has been fixed for 3.2.1. Since this is a minor issues I am not planning to backport to 3.1.