An unexpected exception has occurred: RSEG1003U

When trying to set up a new object filter of the source files in a 
development library, one of my developers is receiving this error message. 
 The only references I can find about it relate to when an empty list 
would be returned for multiple filter strings.  This is not the case-  I 
use the same filter strings and it's only a single filter string anyway.

He receives a error dialog box with the RSEG1003U as the title and the 
text "An unexpected exception has occurred".  The box also contains the 
following:

java.lang.NullPointerException 
java.lang.NullPointerException 
        at 
com.ibm.etools.systems.filters.impl.SystemFilterPoolImpl.createSystemFilter(SystemFilterPoolImpl.java:772)
 
        at 
com.ibm.etools.systems.filters.impl.SystemFilterPoolManagerImpl.createSystemFilter(SystemFilterPoolManagerImpl.java:1237)
 
        at 
com.ibm.etools.systems.filters.impl.SystemFilterPoolManagerImpl.createSystemFilter(SystemFilterPoolManagerImpl.java:1268)
 
        at 
com.ibm.etools.systems.filters.ui.dialogs.SystemNewFilterWizard.createNewFilter(SystemNewFilterWizard.java:627)
 
        at 
com.ibm.etools.systems.filters.ui.dialogs.SystemNewFilterWizard.performFinish(SystemNewFilterWizard.java:481)
 
        at 
org.eclipse.jface.wizard.WizardDialog.finishPressed(WizardDialog.java:608) 
        at 
org.eclipse.jface.wizard.WizardDialog.buttonPressed(WizardDialog.java:321) 
        at 
org.eclipse.jface.dialogs.Dialog$1.widgetSelected(Dialog.java:423) 
        at 
org.eclipse.swt.widgets.TypedListener.handleEvent(TypedListener.java(Compiled 
Code)) 
        at 
org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java(Inlined 
Compiled Code)) 
        at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java(Inlined 
Compiled Code)) 
        at 
org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java(Compiled 
Code)) 
        at 
org.eclipse.swt.widgets.Display.readAndDispatch(Display.java(Compiled 
Code)) 
        at 
org.eclipse.jface.window.Window.runEventLoop(Window.java(Compiled Code)) 
        at org.eclipse.jface.window.Window.open(Window.java:563) 
        at 
com.ibm.etools.systems.core.ui.actions.SystemBaseDialogAction.run(SystemBaseDialogAction.java:314)
 
        at 
com.ibm.etools.systems.as400filesubsys.impl.FileSubSystemFactoryImpl.createFilterByPrompting(Unknown
 
Source) 
        at 
com.ibm.etools.systems.core.ui.view.SystemViewFilterReferenceAdapter.getChildren(SystemViewFilterReferenceAdapter.java:198)
 
        at 
com.ibm.etools.systems.core.ui.view.SystemViewLabelAndContentProvider.getChildren(SystemViewLabelAndContentProvider.java:239)
 
        at 
org.eclipse.jface.viewers.AbstractTreeViewer.getRawChildren(AbstractTreeViewer.java:653)
 
        at 
org.eclipse.jface.viewers.StructuredViewer.getFilteredChildren(StructuredViewer.java:454)
 
        at 
org.eclipse.jface.viewers.StructuredViewer.getSortedChildren(StructuredViewer.java:558)
 
        at 
org.eclipse.jface.viewers.AbstractTreeViewer$1.run(AbstractTreeViewer.java:301) 
        at 
org.eclipse.swt.custom.BusyIndicator.showWhile(BusyIndicator.java:69) 
        at 
org.eclipse.jface.viewers.AbstractTreeViewer.createChildren(AbstractTreeViewer.java:289)
 
        at 
org.eclipse.jface.viewers.AbstractTreeViewer.handleTreeExpand(AbstractTreeViewer.java:697)
 
        at 
com.ibm.etools.systems.core.ui.view.SystemView.handleTreeExpand(SystemView.java:1237)
 
        at 
org.eclipse.jface.viewers.AbstractTreeViewer$4.treeExpanded(AbstractTreeViewer.java(Inlined
 
Compiled Code)) 
        at 
org.eclipse.swt.widgets.TypedListener.handleEvent(TypedListener.java(Compiled 
Code)) 
        at 
org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java(Compiled 
Code)) 
        at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java(Inlined 
Compiled Code)) 
        at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java(Compiled 
Code)) 
        at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java(Inlined 
Compiled Code)) 
        at org.eclipse.swt.widgets.Tree.wmNotifyChild(Tree.java(Compiled 
Code)) 
        at org.eclipse.swt.widgets.Control.WM_NOTIFY(Control.java(Inlined 
Compiled Code)) 
        at 
org.eclipse.swt.widgets.Composite.WM_NOTIFY(Composite.java(Compiled Code)) 
        at 
org.eclipse.swt.widgets.Control.windowProc(Control.java(Compiled Code)) 
        at 
org.eclipse.swt.widgets.Display.windowProc(Display.java(Compiled Code)) 
        at org.eclipse.swt.internal.win32.OS.CallWindowProcW(Native 
Method) 
        at 
org.eclipse.swt.internal.win32.OS.CallWindowProc(OS.java(Inlined Compiled 
Code)) 
        at org.eclipse.swt.widgets.Tree.callWindowProc(Tree.java(Compiled 
Code)) 
        at org.eclipse.swt.widgets.Tree.WM_LBUTTONDOWN(Tree.java:1520) 
        at 
org.eclipse.swt.widgets.Control.windowProc(Control.java(Compiled Code)) 
        at 
org.eclipse.swt.widgets.Display.windowProc(Display.java(Compiled Code)) 
        at org.eclipse.swt.internal.win32.OS.DispatchMessageW(Native 
Method) 
        at 
org.eclipse.swt.internal.win32.OS.DispatchMessage(OS.java(Inlined Compiled 
Code)) 
        at 
org.eclipse.swt.widgets.Display.readAndDispatch(Display.java(Compiled 
Code)) 
        at 
org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.java(Compiled 
Code)) 
        at org.eclipse.ui.internal.Workbench.run(Workbench.java:1385) 
        at 
org.eclipse.core.internal.boot.InternalBootLoader.run(InternalBootLoader.java:858)
 
        at org.eclipse.core.boot.BootLoader.run(BootLoader.java:461) 
        at java.lang.reflect.Method.invoke(Native Method) 
        at org.eclipse.core.launcher.Main.basicRun(Main.java:291) 
        at org.eclipse.core.launcher.Main.run(Main.java:747) 
        at org.eclipse.core.launcher.Main.main(Main.java:583) 

Does anyone have any idea how to fix this without waiting for WDSc 6.0?