NPE when adding a detached treeitem

[zaccret]

GXT version : 1.2
GWT version : 1.5.3
Hosted mode
OS : Windows XP
Description :We get a NullPointerException if we add a TreeItem to another TreeItem which is not attached to a tree.

public class Test implements EntryPoint {
public void onModuleLoad() {
TreeItem root = new TreeItem("Options");
TreeItem subRoot = new TreeItem("Cameras");
root.add(subRoot);
}
}

[zaccret]

Darell, this bug is still in 1.0.1

[zaccret]

And the stack trace :

java.lang.NullPointerException: null
at com.extjs.gxt.ui.client.widget.tree.TreeItem.add(TreeItem.java:170)
at com.extjs.gxt.ui.client.widget.tree.TreeItem.add(TreeItem.java:152)
at test.gxt.client.Test.onModuleLoad(Test.java:13)

I suggest 2 solutions :
1 - (item -> tree) relation must be done on tree render instead of be done on add item
2 - simply throw a more explicit exception like illegalargument or illegalstateexception saying something like "the parent must first be add to a tree".

[zaccret]

Still not resolved in last release.

[zaccret]

Still in 1.1.2

[zaccret]

I still get the issue with the last 1.2 release. I've added some information in the first post.

[zaccret]

I've duplicated this issue in a cleaner thread : http://extjs.com/forum/showthread.php?p=258235