https://docs.oracle.com/javase/jp/6/api/javax/swing/tree/DefaultTreeCellEditor.EditorContainer.html
DefaultTreeCellEditor.EditorContainer (Java Platform SE 6)
java platformse
https://docs.oracle.com/en/java/javase/11/docs/api/java.desktop/javax/swing/tree/DefaultTreeCellEditor.EditorContainer.html
DefaultTreeCellEditor.EditorContainer (Java SE 11 & JDK 11 )
java sejdk