[GROOVY-1150] Strange behavior on property setter

• Type: Bug
• Status: Closed
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 1.0-JSR-3
• Fix Version/s: 1.5.2
• Environment: Groovy jsr-03, java version "1.5.0_05", winXP
• Assignee: Paul King
• Reporter: Antti Karanta
• Created: 21/Nov/05 06:05
• Updated: 08/Feb/08 01:26
• Resolved: 06/Jan/08 01:48

Description

Try this:

class Foo {
  private _xxx

  public void setBar(b) {
    println "before setting"
    _xxx = b
    println "after setting"  
  }
}

def x = new Foo()

x.bar = 1
x.bar = 2

When run, the output is:

C:\Temp>groovy settertest.groovy
before setting
after setting
before setting
after setting
Caught: groovy.lang.GroovyRuntimeException: Cannot read property: bar

even though the property bar was never read. If you add e.g.
println "goodbye"
as the last line of the script, the exception does not occur.

Issue Links

• duplicates: GROOVY-2244 Write-only JavaBeans properties cannot be set via the '=' operator