double evaluation of method arguments in SpEL [SPR-11445]

[spring-projects-issues]

Björn Voß opened SPR-11445 and commented

Since version 3.2.5 in expressions like

"dummyAction.isSero(dummyBean.getCalls())"

the argument part "dummyBean.getCalls()" is evaluated twice

see attached a little project for testing.
if you change the propertie 'spring.version' to 3.2.4.RELEASE the test is green. On all later versions the test fails.

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Affects: 3.2.5, 3.2.6, 3.2.7, 3.2.8, 4.0.1, 4.0.2

Attachments:

• spel.tar.gz (40.00 kB)

Referenced from: commits 519799e, b1bcc5d

Backported to: 3.2.9

[spring-projects-issues]

Stéphane Nicoll commented

I have added a sample project that reproduces this issue without webflow:
https://github.com/spring-projects/spring-framework-issues/tree/master/SPR-11445

[spring-projects-issues]

Stéphane Nicoll commented

Broken by 3157b68, the arguments are indeed resolved twice since that change. Fixing that.

[spring-projects-issues]

Stéphane Nicoll commented

This has been fixed on master and the backport to 3.2 is scheduled for our next round. Your sample project works fine against master now.

[spring-projects-issues]

Juergen Hoeller commented

This is available in the latest 4.0.3 snapshot already, and will be available in the immediately upcoming 3.2.9 snapshot as well (see http://projects.spring.io/spring-framework/ for Maven coordinates). Please give it a try and let us know whether it works for you...

Juergen

[spring-projects-issues]

Björn Voß commented

Looks good for me
Thx!