[GROOVY-9522] Throwing NPE when I use ternary operator with something special

• Type: Bug
• Status: Closed
• Priority: Critical
• Resolution: Fixed
• Affects Version/s: 3.0.3
• Fix Version/s: 4.0.0-alpha-1, 3.0.4
• Component/s: parser
• Environment: Win10/MacOS ; Zulu OpenJDK 11
• Assignee: Daniel Sun
• Reporter: Huabin Zhang
• Created: 24/Apr/20 06:47
• Updated: 22/May/20 04:03
• Resolved: 12/May/20 14:04

Description

Hi,  I got NPE instead of empty string when I wrote the following snippet:

 

static String a() {
 null
}

static String b() {
 ''
}

def x = a() ? [b(), a()].join(',') : b() // NPE
//def x = a() ? [b(), a()] : b() // OK
//def x = a() ? ([b(), a()]).join(',') : b() // OK

x == ''