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Bug 34483 - NPE when DnD
Summary: NPE when DnD
Status: VERIFIED FIXED
Alias: None
Product: platform
Classification: Unclassified
Component: Explorer (show other bugs)
Version: 3.x
Hardware: PC Windows ME/2000
: P2 blocker (vote)
Assignee: Jiri Rechtacek
URL:
Keywords: JDK_SPECIFIC
: 34507 36863 (view as bug list)
Depends on:
Blocks:
 
Reported: 2003-06-19 09:36 UTC by ehucka
Modified: 2008-12-22 20:19 UTC (History)
0 users

See Also:
Issue Type: DEFECT
Exception Reporter:

Attachments
Packed ide.log. (5.65 KB, application/octet-stream)
2003-06-19 09:37 UTC, ehucka 		Details
proposed patch (1.68 KB, patch)
2003-10-12 21:32 UTC, Jiri Rechtacek 		Details | Diff
jar file to ensure fix on w2k (22.01 KB, application/octet-stream)
2003-10-12 21:33 UTC, Jiri Rechtacek 		Details
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Description ehucka 2003-06-19 09:36:07 UTC 
NB Build 200306160100
JDK 1.4.1_02
W2K

Durring the Form editing I cannot use Drag and
drop functions in Component inspector. It doesn't
position dragged component and doesn't put it to
any position.
And a lot of NPEs are thrown (see Attachement).
Comment 1 ehucka 2003-06-19 09:37:10 UTC 
Created attachment 10733 [details]
Packed ide.log.
Comment 2 Jiri Rechtacek 2003-06-23 20:21:55 UTC 
NPE at TreeViewDropSupport.doDragOver(225)
 at TreeViewDropSupport.dragOver(120)
 at  DropTarget.dragOver(356)

It'll be investigated ASAP what's wrong.
Comment 3 Lukas Hasik 2003-08-05 14:33:52 UTC 
only on windows. nb40dev - 200307280100

D'n'D starts work again when you move with cursor (still dragging)
outside of window (Explorer)
Comment 4 Jiri Rechtacek 2003-08-12 12:48:24 UTC 
*** Issue 34507 has been marked as a duplicate of this issue. ***
Comment 5 Jiri Rechtacek 2003-10-12 21:32:19 UTC 
Created attachment 11838 [details]
proposed patch
Comment 6 Jiri Rechtacek 2003-10-12 21:33:25 UTC 
Created attachment 11839 [details]
jar file to ensure fix on w2k
Comment 7 Lukas Hasik 2003-10-15 16:05:22 UTC 
patch tested - looks ok.

the bug doesn't occure on jdk 1.4.2
Comment 8 Jiri Rechtacek 2003-10-17 09:08:19 UTC 
fixed in main trunk,
openide/src/org/openide/explorer/view/TreeViewDropSupport.java, rev.1.35

Added check if glass pane has been stored. The problem only in
jdk1.4.1 on w2k becuase DnD framework could call dragOver() and
dragEnter() in bad order, jdk1.4.2 has fixed it.
Comment 9 Jiri Rechtacek 2003-10-29 10:35:14 UTC 
*** Issue 36863 has been marked as a duplicate of this issue. ***
Comment 10 Jiri Rechtacek 2003-10-29 10:48:28 UTC 
*** Issue 36863 has been marked as a duplicate of this issue. ***
Comment 11 ehucka 2004-02-23 13:02:29 UTC 
Verified.