Question

当我尝试在本地表单环境中打开表单时，Oracle表单崩溃了。这是我早些时候为我工作但我在重新安装表单环境后确实开始出现此错误。表单也在服务器上正常工作。我在Java控制台中收到以下错误：

Exception in thread "AWT-EventQueue-2" java.lang.NoClassDefFoundError: oracle/bali/share/sort/StringComparator
    at java.lang.Class.getDeclaredMethods0(Native Method)
    at java.lang.Class.privateGetDeclaredMethods(Unknown Source)
    at java.lang.Class.getDeclaredMethod(Unknown Source)
    at java.awt.Component.isCoalesceEventsOverriden(Unknown Source)
    at java.awt.Component.isCoalesceEventsOverriden(Unknown Source)
    at java.awt.Component.access$500(Unknown Source)
    at java.awt.Component$3.run(Unknown Source)
    at java.awt.Component$3.run(Unknown Source)
    at java.security.AccessController.doPrivileged(Native Method)
    at java.awt.Component.checkCoalescing(Unknown Source)
    at java.awt.Component.<init>(Unknown Source)
    at java.awt.Container.<init>(Unknown Source)
    at oracle.ewt.lwAWT.LWComponent.<init>(Unknown Source)
    at oracle.ewt.lwAWT.LWDataSourceChoice.<init>(Unknown Source)
    at oracle.ewt.lwAWT.LWChoice.<init>(Unknown Source)
    at oracle.ewt.comboBox.ComboBox.<init>(Unknown Source)
    at oracle.ewt.comboBox.ComboBox.<init>(Unknown Source)
    at oracle.forms.ui.VComboBox.<init>(Unknown Source)
    at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
    at sun.reflect.NativeConstructorAccessorImpl.newInstance(Unknown Source)
    at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown Source)
    at java.lang.reflect.Constructor.newInstance(Unknown Source)
    at java.lang.Class.newInstance0(Unknown Source)
    at java.lang.Class.newInstance(Unknown Source)
    at oracle.forms.handler.UICommon.instantiate(Unknown Source)
    at oracle.forms.handler.UICommon.onCreate(Unknown Source)
    at oracle.forms.handler.PopListItem.onCreate(Unknown Source)
    at oracle.forms.handler.ComboBoxItem.onCreate(Unknown Source)
    at oracle.forms.engine.Runform.onCreateHandler(Unknown Source)
    at oracle.forms.engine.Runform.processMessage(Unknown Source)
    at oracle.forms.engine.Runform.processSet(Unknown Source)
    at oracle.forms.engine.Runform.onMessageReal(Unknown Source)
    at oracle.forms.engine.Runform.onMessage(Unknown Source)
    at oracle.forms.engine.Runform.processEventEnd(Unknown Source)
    at oracle.ewt.lwAWT.LWComponent.redispatchEvent(Unknown Source)
    at oracle.ewt.lwAWT.LWComponent.processEvent(Unknown Source)
    at java.awt.Component.dispatchEventImpl(Unknown Source)
    at java.awt.Container.dispatchEventImpl(Unknown Source)
    at java.awt.Component.dispatchEvent(Unknown Source)
    at java.awt.LightweightDispatcher.retargetMouseEvent(Unknown Source)
    at java.awt.LightweightDispatcher.processMouseEvent(Unknown Source)
    at java.awt.LightweightDispatcher.dispatchEvent(Unknown Source)
    at java.awt.Container.dispatchEventImpl(Unknown Source)
    at java.awt.Component.dispatchEvent(Unknown Source)
    at java.awt.EventQueue.dispatchEvent(Unknown Source)
    at java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source)
    at java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source)
    at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)
    at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
    at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
    at java.awt.EventDispatchThread.run(Unknown Source)
Caused by: java.lang.ClassNotFoundException: oracle.bali.share.sort.StringComparator
    at sun.plugin2.applet.Applet2ClassLoader.findClass(Unknown Source)
    at java.lang.ClassLoader.loadClass(Unknown Source)
    at java.lang.ClassLoader.loadClass(Unknown Source)
    at java.lang.ClassLoader.loadClassInternal(Unknown Source)
    ... 51 more
Caused by: java.io.IOException: open HTTP connection failed:http://virtualxp-64805:8889/forms/java/oracle/bali/share/sort/StringComparator.class
    at sun.plugin2.applet.Applet2ClassLoader.getBytes(Unknown Source)
    at sun.plugin2.applet.Applet2ClassLoader.access$000(Unknown Source)
    at sun.plugin2.applet.Applet2ClassLoader$1.run(Unknown Source)
    at java.security.AccessController.doPrivileged(Native Method)
    ... 55 more

我正在使用Oracle Forms 10第2版，我在Windows XP模式下运行它。

Answer 1

经过多次头痛我发现这是由Oracle Forms 10第2版（10.1.2.0.2）和Java 6之间的不兼容引起的。使用列表项作为组合框时会出错。幸运的是，有一个修复方法是在本地Oracle Home上应用Oracle Developer Suite 10g第2版（10.1.2）补丁集3（10.1.2.3.0）。不幸的是，这并没有在表格下载网站上列出，因此容易错过。

尝试打开表单时，Oracle Forms崩溃

1 个答案: