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Bug 316055

Summary:

converter property cannot be set for MultiBinding due to Introspector odd behavior

Product:

[Technology] XWT

Reporter:

Mario Curcija <mario.curcija>

Component:

Core

Assignee:

Project Inbox <e4.xwt-inbox>

Status:

NEW ---

QA Contact:

Severity:

normal

Priority:

Version:

unspecified

Target Milestone:

---

Hardware:

OS:

Linux

Whiteboard:

Attachments:

Description	Flags
MultiBinding Tests patch showing "converter" not settable	none
Simplest check for Multibinding's converter property	none
Sun's Bug 6852569 adoped for MultiBinding's class hierarchy	none

Description Mario Curcija

2010-06-07 16:32:21 EDT

Build Identifier: CVS-HEAD (last build 1.0M6)

The converter property of MultiBinding Instance cannot be set. Property "converter" was set (in .xwt) and setter method is never called. 

PropertyDescriptor in following method doesn't know about setterMethod for "converter":  
org.eclipse.e4.xwt.javabean.metadata.properties.BeanProperty.setValue(Object, Object)
Probably an Introspector has troubles finding it. 

Expected result: converter property is settable. 





Reproducible: Always

Steps to Reproduce:
Using CVS-HEAD. applying patch for xwt test multibinding package (will be attached): 

Basically it does following: 
- sets converter property for a MultiBinding element in .xwt
- checks that expected converter instance was used (fails)

Comment 1 Mario Curcija

2010-06-07 16:34:33 EDT

Created attachment 171334 [details]
MultiBinding Tests patch showing "converter" not settable

Comment 2 Mario Curcija

2010-10-10 02:33:06 EDT

Created attachment 180558 [details]
Simplest check for Multibinding's converter property

Sun's Inrospector implementation in 1.6.0_21 is never unable to find setter for converter property.  On the other hand gjc's (1.5.0) Introspector implementation does succeed (although not always :)

Comment 3 Mario Curcija

2010-10-10 02:35:19 EDT

(In reply to comment #2)
> Sun's Inrospector implementation in 1.6.0_21 is never unable to find setter for
"always unable to find setter for"

Comment 4 Mario Curcija

2010-10-10 02:40:47 EDT

Created attachment 180559 [details]
Sun's Bug 6852569 adoped for MultiBinding's class hierarchy

Reference to Sun's JDK Bug: 
Introspector.getBeanInfo ignores write method if read method is overridden
http://bugs.sun.com/bugdatabase/view_bug.do;jsessionid=e4671321ad8dd14a8ba92e190ca2e?bug_id=6852569