我们正在使用 OpenCMIS 编写一个 CMIS 服务器。我们有一个具有一些强制性多值属性的新文档类型。现在我尝试通过打开“创建文档”对话框在工作台中添加一个新文档。此对话框中列出了必需的属性。但我不知道如何输入多值。我尝试了一些分隔符（例如a,b，"a","b"，["a","b"]，[a,b]和其他），但总是显示错误，如
IllegalArgumentException：属性 'xx:propIdXX' 不是单值属性！
该日志具有以下条目：
18:46:54 ERROR hemistry.opencmis.workbench.ClientHelper: IllegalArgumentException: Property 'xx:propIdXX' is not a single value property!
java.lang.IllegalArgumentException: Property 'xx:propIdXX' is not a single value property!
at org.apache.chemistry.opencmis.client.runtime.repository.ObjectFactoryImpl.convertProperties(ObjectFactoryImpl.java:437)
at org.apache.chemistry.opencmis.client.runtime.SessionImpl.createDocument(SessionImpl.java:751)
at org.apache.chemistry.opencmis.workbench.model.ClientModel.createDocument(ClientModel.java:279)
at org.apache.chemistry.opencmis.workbench.CreateDocumentDialog$4.actionPerformed(CreateDocumentDialog.java:252)
at javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:1995)
at javax.swing.AbstractButton$Handler.actionPerformed(AbstractButton.java:2318)
at javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel.java:387)
at javax.swing.DefaultButtonModel.setPressed(DefaultButtonModel.java:242)
at javax.swing.AbstractButton.doClick(AbstractButton.java:357)
at javax.swing.plaf.basic.BasicRootPaneUI$Actions.actionPerformed(BasicRootPaneUI.java:191)
at javax.swing.SwingUtilities.notifyAction(SwingUtilities.java:1636)
at javax.swing.JComponent.processKeyBinding(JComponent.java:2851)
at javax.swing.KeyboardManager.fireBinding(KeyboardManager.java:267)
at javax.swing.KeyboardManager.fireKeyboardAction(KeyboardManager.java:216)
at javax.swing.JComponent.processKeyBindingsForAllComponents(JComponent.java:2928)
at javax.swing.JComponent.processKeyBindings(JComponent.java:2920)
at javax.swing.JComponent.processKeyEvent(JComponent.java:2814)
at java.awt.Component.processEvent(Component.java:6040)
at java.awt.Container.processEvent(Container.java:2041)
at java.awt.Component.dispatchEventImpl(Component.java:4630)
at java.awt.Container.dispatchEventImpl(Container.java:2099)
at java.awt.Component.dispatchEvent(Component.java:4460)
at java.awt.KeyboardFocusManager.redispatchEvent(KeyboardFocusManager.java:1848)
at java.awt.DefaultKeyboardFocusManager.dispatchKeyEvent(DefaultKeyboardFocusManager.java:704)
at java.awt.DefaultKeyboardFocusManager.preDispatchKeyEvent(DefaultKeyboardFocusManager.java:969)
at java.awt.DefaultKeyboardFocusManager.typeAheadAssertions(DefaultKeyboardFocusManager.java:841)
at java.awt.DefaultKeyboardFocusManager.dispatchEvent(DefaultKeyboardFocusManager.java:668)
at java.awt.Component.dispatchEventImpl(Component.java:4502)
at java.awt.Container.dispatchEventImpl(Container.java:2099)
at java.awt.Window.dispatchEventImpl(Window.java:2475)
at java.awt.Component.dispatchEvent(Component.java:4460)
at java.awt.EventQueue.dispatchEvent(EventQueue.java:599)
at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:269)
at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:184)
at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:178)
at java.awt.Dialog$1.run(Dialog.java:1045)
at java.awt.Dialog$3.run(Dialog.java:1097)
at java.security.AccessController.doPrivileged(Native Method)
at java.awt.Dialog.show(Dialog.java:1095)
at java.awt.Component.show(Component.java:1563)
at java.awt.Component.setVisible(Component.java:1515)
at java.awt.Window.setVisible(Window.java:841)
at java.awt.Dialog.setVisible(Dialog.java:985)
at org.apache.chemistry.opencmis.workbench.swing.CreateDialog.showDialog(CreateDialog.java:119)
at org.apache.chemistry.opencmis.workbench.CreateDocumentDialog.createGUI(CreateDocumentDialog.java:307)
at org.apache.chemistry.opencmis.workbench.CreateDocumentDialog.<init>(CreateDocumentDialog.java:84)
at org.apache.chemistry.opencmis.workbench.CreateDocumentDialog.<init>(CreateDocumentDialog.java:79)
at org.apache.chemistry.opencmis.workbench.ClientFrame$9.actionPerformed(ClientFrame.java:253)
at javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:1995)
多值的格式如何？