private void createHintletTree() {
hintletTree = new HintletRecordsTree(new DefaultContainerImpl(
hintletTreeWrapper), info.getHintRecords(), resources);
// Hook listener to tree list to monitor expansion changes.
hintletTree.addExpansionChangeListener(new ExpansionChangeListener() {
public void onExpansionChange(Item changedItem) {
fixHeightOfParentRow();
}
});