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Strange behaviour of JTree

Hi,I`m working on Swing GUIs. In most of them I saw a interesting thing (usually on SUN): the nodes of JTree component displayed with huge distance or sometimes up on themselves. Have you ever seen such behavior or I do something wrong?

[250 byte] By [onenita] at [2007-10-3 4:52:24]

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# 1

In first case (huge distance):

the tree should be like this:

root

|_node1

|_node2

but what I see e.g.:

root

|_node1

|_node2

I cannot represent the other case here, because the root and the node1 and the node2 strings are on top of each other (overwritten)

onenita at 2007-7-14 22:57:11 >

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# 2

I saw such errors with JTree, but found no reasonable source for the problem :-\Looks like some problems with JTree L&F in Java.I noticed only it happens more frequently, when application is busy, especially another thread is doing hard work while JTree is reloading etc

sbrytskyya at 2007-7-14 22:57:11 >

# 3

It would be a solution for me if there is a bug report about this problem.I checked the bug reports but there is no one mentioned such problemor just I cannot find it. What should I do?

onenita at 2007-7-14 22:57:11 >

# 4

What is the number of bugreport?

sbrytskyya at 2007-7-14 22:57:11 >

# 5

I didn`t find such bug report as I mentioned above, but it does not mean that it does not exist. So I also would like to know the bug report number:)

onenita at 2007-7-14 22:57:11 >

# 6

Just enter new one :-)

sbrytskyya at 2007-7-14 22:57:11 >

# 7

Before I write a bug report I would like to make sure of that it is a JTree problem. Which java version did you see such behaviour with?

onenita at 2007-7-14 22:57:11 >

# 8

Java 5.0 latest version on both Mac OS X and Windows platforms

sbrytskyya at 2007-7-14 22:57:11 >

# 9

The bug report is done. But I cannot write you its number yet.They wrote that it takes three weeks.

onenita at 2007-7-14 22:57:11 >

# 10

I know. Ok. Will wait :-)

sbrytskyya at 2007-7-14 22:57:11 >

# 11

OK, thanks for your help:)

onenita at 2007-7-14 22:57:11 >

# 12

I've noticed the same behaviour. I started to notice the problem when I started to use animated gif on the jtree. It seems to be related to the icon refresh process performed by NodeImageObserver.

Macrelo_Camposa at 2007-7-14 22:57:11 >

# 13

I haven`t any animated gif in the JTree, just simple gif pics.I`ve not managed to figure out what causes exactly this behaviour.And I have no answer to the bug report yet.

onenita at 2007-7-14 22:57:11 >

# 14

In my case, I used to have a method to refresh the Jtree:

public void refreshTree() {

//saveExpansionState();

//((DefaultTreeModel )jTree.getModel()).nodeStructureChanged((TreeNode)topNode);

//mapPanel.repaint();

//loadExpansionState();

////There seems to be a bug in the tree... Changing the panel width seems to fix...

//int currentWidth = jSplitPane1.getDividerLocation();

//jSplitPane1.setDividerLocation(currentWidth + 5);

//jSplitPane1.setDividerLocation(currentWidth);

}

After removing this method, I have bot noticed the problem again.

Macrelo_Camposa at 2007-7-14 22:57:11 >

# 15

Interesting. Can you show methods saveExpansionState and loadExpansionState?And why code is commented out?jSplitPane1 - it is panel, which contains tree, right?

sbrytskyya at 2007-7-21 10:46:01 >

# 16

Tree weeks.... obviously passed more than 3 week but there`s no answer. Does anybody know that how i can ask about the bug reports? I would need a mail address....

onenita at 2007-7-21 10:46:01 >

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