Container.java (validate): Use tree lock.
* java/awt/Container.java (validate): Use tree lock.
(getComponent): Likewise.
(getComponents): Likewise.
(addImpl): Likewise.
(remove): Likewise.
(removeAll): Likewise.
(processEvent): Fixed indentation.
(getComponentAt): Use tree lock.
(findComponentAt): Likewise.
(removeNotify): Likewise.
(isAncestorOf): Likewise.
(list): Likewise.
(visitChildren): Likewise.
(findNextFocusComponent): Likewise.
(addNotifyContainerChildren): Likewise.
(getAccessibleChildrenCount): Likewise.
(getAccessibleChild): Likewise.
From-SVN: r59009