https://docs.oracle.com/javase/jp/17/docs/api/java.desktop/javax/swing/plaf/basic/BasicScrollPaneUI.VSBChangeListener.html
BasicScrollPaneUI.VSBChangeListener (Java SE 17 & JDK 17)
declaration: module: java.desktop, package: javax.swing.plaf.basic, class: BasicScrollPaneUI, class: VSBChangeListener
java sejdk