Custom Workflow

I trying customize new Work Item and new Workflow for this Work Item. When click in the Work Item (Advanced)\Workflow, this error appear:

java.lang.NullPointerException

The Log view appear:

Problems occurred when invoking code from plug-in: "org.eclipse.jface".

Stack Trace
java.lang.NullPointerException
at com.ibm.team.workitem.ide.ui.internal.aspecteditor.workflow.WorkflowEditorPart$7.selectionChanged(WorkflowEditorPart.java:241)
at com.ibm.team.workitem.ide.ui.internal.editor.DecoratedControl.fireSelectionChanged(DecoratedControl.java:201)
at com.ibm.team.workitem.ide.ui.internal.editor.DecoratedControl.fireSelectionChanged(DecoratedControl.java:193)
at com.ibm.team.workitem.ide.ui.internal.editor.DecoratedCombo.setValue(DecoratedCombo.java:115)
at com.ibm.team.workitem.ide.ui.internal.aspecteditor.workflow.WorkflowEditorPart.flushDetails(WorkflowEditorPart.java:469)
at com.ibm.team.workitem.ide.ui.internal.aspecteditor.workflow.WorkflowEditorPart.setInput(WorkflowEditorPart.java:488)
at com.ibm.team.ui.editor.TeamFormSectionPart.setFormInput(TeamFormSectionPart.java:126)
at org.eclipse.ui.forms.ManagedForm.setInput(ManagedForm.java:239)
at com.ibm.team.workitem.ide.ui.internal.aspecteditor.workflow.WorkflowAspectEditor.inputChanged(WorkflowAspectEditor.java:218)
at com.ibm.team.workitem.ide.ui.internal.aspecteditor.AbstractWorkItemAspectEditor$2.selectionChanged(AbstractWorkItemAspectEditor.java:131)
at com.ibm.team.workitem.ide.ui.internal.editor.DecoratedControl.fireSelectionChanged(DecoratedControl.java:201)
at com.ibm.team.workitem.ide.ui.internal.editor.DecoratedControl.fireSelectionChanged(DecoratedControl.java:193)
at com.ibm.team.workitem.ide.ui.internal.editor.DecoratedCombo.setValue(DecoratedCombo.java:115)
at com.ibm.team.workitem.ide.ui.internal.aspecteditor.AbstractWorkItemAspectEditor.updateCombo(AbstractWorkItemAspectEditor.java:220)
at com.ibm.team.workitem.ide.ui.internal.aspecteditor.AbstractWorkItemAspectEditor.createControl(AbstractWorkItemAspectEditor.java:209)
at com.ibm.team.process.internal.ide.ui.editors.form.ProcessAspectDetailsPart.handleAspectSelected(ProcessAspectDetailsPart.java:306)
at com.ibm.team.process.internal.ide.ui.editors.form.ProcessAspectDetailsPart.access$1(ProcessAspectDetailsPart.java:231)
at com.ibm.team.process.internal.ide.ui.editors.form.ProcessAspectDetailsPart$SelectionListener.selectionChanged(ProcessAspectDetailsPart.java:83)
at org.eclipse.jface.viewers.Viewer$2.run(Viewer.java:162)
at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:37)
at org.eclipse.core.runtime.Platform.run(Platform.java:880)
at org.eclipse.ui.internal.JFaceUtil$1.run(JFaceUtil.java:48)
at org.eclipse.jface.util.SafeRunnable.run(SafeRunnable.java:175)
at org.eclipse.jface.viewers.Viewer.fireSelectionChanged(Viewer.java:160)
at org.eclipse.jface.viewers.StructuredViewer.updateSelection(StructuredViewer.java:2062)
at org.eclipse.jface.viewers.StructuredViewer.handleSelect(StructuredViewer.java:1138)
at org.eclipse.jface.viewers.StructuredViewer$4.widgetSelected(StructuredViewer.java:1168)
at org.eclipse.jface.util.OpenStrategy.fireSelectionEvent(OpenStrategy.java:227)
at org.eclipse.jface.util.OpenStrategy.access$3(OpenStrategy.java:221)
at org.eclipse.jface.util.OpenStrategy$1.handleEvent(OpenStrategy.java:388)
at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84)
at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1003)
at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:3823)
at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3422)
at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.java:2384)
at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:2348)
at org.eclipse.ui.internal.Workbench.access$4(Workbench.java:2200)
at org.eclipse.ui.internal.Workbench$5.run(Workbench.java:495)
at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:288)
at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:490)
at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:149)
at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:113)
at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:193)
at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:110)
at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:79)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:386)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:179)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:37)
at java.lang.reflect.Method.invoke(Method.java:599)
at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:549)
at org.eclipse.equinox.launcher.Main.basicRun(Main.java:504)
at org.eclipse.equinox.launcher.Main.run(Main.java:1236)

Session data:

eclipse.buildId=unknown
java.fullversion=J2RE 1.6.0 IBM J9 2.4 Windows XP x86-32 jvmwi3260sr4ifx-20090506_34991 (JIT enabled, AOT enabled)
J9VM - 20090506_034991_lHdSMr
JIT - r9_20090213_2028
GC - 20090213_AA
BootLoader constants: OS=win32, ARCH=x86, WS=win32, NL=en_US
Framework arguments: -product com.ibm.team.concert.product
Command-line arguments: -os win32 -ws win32 -arch x86 -product com.ibm.team.concert.product



could someone help me, pls?


Tks,

Walter Farias