* java/awt/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.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@59009 138bc75d-0d04-0410-961f-82ee72b054a4