639: error while creating session bean

I created a new EJB Group. Then I created a new session bean. When I
pressed OK, I got this:

ERROR - m.intellij.openapi.command.b.b -
ERROR - m.intellij.openapi.command.b.b - IntelliJ IDEA
(Ariadna) 3.0 Build #639
ERROR - m.intellij.openapi.command.b.b - JDK: 1.4.0_01
ERROR - m.intellij.openapi.command.b.b - VM: Java
HotSpot(TM) Client VM
ERROR - m.intellij.openapi.command.b.b - Vendor: Sun
Microsystems Inc.
ERROR - m.intellij.openapi.command.b.b - OS: Windows 2000
ERROR - m.intellij.openapi.command.b.b -
java.lang.NullPointerException
at com.intellij.j2ee.c.d.dw.v(dw.java:8)
at com.intellij.j2ee.c.d.bw.run(bw.java:0)
at
com.intellij.openapi.application.a.d.runWriteAction(d.java:99)
at com.intellij.j2ee.c.d.bv.run(bv.java:1)
at com.intellij.openapi.command.b.b.executeCommand(b.java:26)
at com.intellij.j2ee.c.d.dw.doOKAction(dw.java:212)
at
com.intellij.openapi.ui.DialogWrapper$OkAction.actionPerformed(DialogWrapper.java:3)

at
javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:1767)

at
javax.swing.AbstractButton$ForwardActionEvents.actionPerformed(AbstractButton.java:1820)

at
javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel.java:419)

at
javax.swing.DefaultButtonModel.setPressed(DefaultButtonModel.java:257)
at
javax.swing.plaf.basic.BasicButtonListener.mouseReleased(BasicButtonListener.java:258)

at java.awt.Component.processMouseEvent(Component.java:5021)
at java.awt.Component.processEvent(Component.java:4818)
at java.awt.Container.processEvent(Container.java:1525)
at java.awt.Component.dispatchEventImpl(Component.java:3526)
at java.awt.Container.dispatchEventImpl(Container.java:1582)
at java.awt.Component.dispatchEvent(Component.java:3367)
at
java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:3359)
at
java.awt.LightweightDispatcher.processMouseEvent(Container.java:3074)
at
java.awt.LightweightDispatcher.dispatchEvent(Container.java:3004)
at java.awt.Container.dispatchEventImpl(Container.java:1568)
at java.awt.Window.dispatchEventImpl(Window.java:1581)
at java.awt.Component.dispatchEvent(Component.java:3367)
at java.awt.EventQueue.dispatchEvent(EventQueue.java:445)
at com.intellij.ide.q.a(q.java:23)
at com.intellij.ide.q.dispatchEvent(q.java:22)
at
java.awt.EventDispatchThread.pumpOneEventForHierarchy(EventDispatchThread.java:191)

at
java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:144)

at
java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:134)

at java.awt.Dialog.show(Dialog.java:524)
at
com.intellij.openapi.ui.DialogWrapper$MyDialog.show(DialogWrapper.java:31)

at
com.intellij.openapi.ui.DialogWrapper.show(DialogWrapper.java:105)
at com.intellij.j2ee.c.d.dp.actionPerformed(dp.java:3)
at
com.intellij.openapi.actionSystem.b.j.actionPerformed(j.java:0)
at
javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:1767)

at
com.intellij.openapi.actionSystem.b.z.fireActionPerformed(z.java:67)
at com.intellij.ui.a.a.n.doClick(n.java:94)
at com.intellij.ui.a.a.n.access$300(n.java:27)
at com.intellij.ui.a.a.o.mouseReleased(o.java:7)
at java.awt.Component.processMouseEvent(Component.java:5021)
at java.awt.Component.processEvent(Component.java:4818)
at java.awt.Container.processEvent(Container.java:1525)
at java.awt.Component.dispatchEventImpl(Component.java:3526)
at java.awt.Container.dispatchEventImpl(Container.java:1582)
at java.awt.Component.dispatchEvent(Component.java:3367)
at
java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:3359)
at
java.awt.LightweightDispatcher.processMouseEvent(Container.java:3074)
at
java.awt.LightweightDispatcher.dispatchEvent(Container.java:3004)
at java.awt.Container.dispatchEventImpl(Container.java:1568)
at java.awt.Window.dispatchEventImpl(Window.java:1581)
at java.awt.Component.dispatchEvent(Component.java:3367)
at java.awt.EventQueue.dispatchEvent(EventQueue.java:445)
at com.intellij.ide.q.a(q.java:23)
at com.intellij.ide.q.dispatchEvent(q.java:22)
at
java.awt.EventDispatchThread.pumpOneEventForHierarchy(EventDispatchThread.java:191)

at
java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:144)

at
java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:138)
at
java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:130)
at java.awt.EventDispatchThread.run(EventDispatchThread.java:98)