根据您使用的jdk8的确切（更新）版本，这可能是 RT-25679 （部分还原于 RT-38517 ）AFAIK，没有公共API可以禁用集合视图的自动对焦/选择。只有ListView在其属性中禁用默认行为（未记录！注意，它们可以更改，恕不另行通知）条目

Depending on which exact (update) version of jdk8 you are using, this might be the fix for RT-25679 (partially reverted in RT-38517) AFAIK, there is no public api to disable the auto-focus/select for the collection views in general. Only ListView has (undocumented! beware, they can change without notice) entries in its properties that disable the default behaviour

// disable selecting the first item on focus gain - this is
// not what is expected in the ComboBox control (unlike the
// ListView control, which does this).
listView.getProperties().put("selectOnFocusGain", false);
// introduced between 8u20 and 8u40b7
// with this, testfailures back to normal
listView.getProperties().put("selectFirstRowByDefault", false);