Netbeans视觉编辑突然有缺陷

Question

我目前正在为下个月的考试开发一个小应用程序。我正在使用Netbeans的可视化编辑器。

突然间它停止了工作，在线程结束时给了我异常。

它似乎与我的选项卡窗格有关，其中包含一个名为StuderendePanel的面板。

是否有人熟悉此问题，我该如何解决？

java.lang.InstantiationException: View.StuderendePanel
at java.lang.Class.newInstance0(Class.java:357)
at java.lang.Class.newInstance(Class.java:325)
at org.netbeans.modules.form.CreationFactory.createDefaultInstance(CreationFactory.java:178)
at org.netbeans.modules.form.RADComponent.createBeanInstance(RADComponent.java:252)
at org.netbeans.modules.form.RADComponent.initInstance(RADComponent.java:191)
at org.netbeans.modules.form.GandalfPersistenceManager.restoreComponent(GandalfPersistenceManager.java:806)
at org.netbeans.modules.form.GandalfPersistenceManager.loadComponent(GandalfPersistenceManager.java:994)
at org.netbeans.modules.form.GandalfPersistenceManager.restoreComponent(GandalfPersistenceManager.java:850)
at org.netbeans.modules.form.GandalfPersistenceManager.loadComponent(GandalfPersistenceManager.java:994)
at org.netbeans.modules.form.GandalfPersistenceManager.loadForm(GandalfPersistenceManager.java:530)
at org.netbeans.modules.form.GandalfPersistenceManager.loadForm(GandalfPersistenceManager.java:312)
at org.netbeans.modules.form.FormEditor$2.run(FormEditor.java:348)
at org.netbeans.modules.form.FormLAF$2.run(FormLAF.java:293)
at org.openide.util.Mutex.doEventAccess(Mutex.java:1363)
at org.openide.util.Mutex.readAccess(Mutex.java:322)
at org.netbeans.modules.form.FormLAF.executeWithLookAndFeel(FormLAF.java:276)
at org.netbeans.modules.form.FormEditor.loadFormData(FormEditor.java:345)
at org.netbeans.modules.nbform.FormEditorSupport.loadOpeningForm(FormEditorSupport.java:462)
at org.netbeans.modules.nbform.FormDesignerTC.loadForm(FormDesignerTC.java:279)
at org.netbeans.modules.nbform.FormDesignerTC.access$300(FormDesignerTC.java:87)
at org.netbeans.modules.nbform.FormDesignerTC$PreLoadTask$1.run(FormDesignerTC.java:268)
at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:251)
at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:721)
at java.awt.EventQueue.access$200(EventQueue.java:103)
at java.awt.EventQueue$3.run(EventQueue.java:682)
at java.awt.EventQueue$3.run(EventQueue.java:680)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:76)
at java.awt.EventQueue.dispatchEvent(EventQueue.java:691)
at org.netbeans.core.TimableEventQueue.dispatchEvent(TimableEventQueue.java:159)
at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:242)
at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:161)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:150)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:146)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:138)
at java.awt.EventDispatchThread.run(EventDispatchThread.java:91)

Answer 1

我们现在已经解决了这个问题。

我们有GUI将控制器对象传递给Studerende面板。但是，当Netbeans调用GUI的initComponents方法时，控制器未初始化，因此无效。