PNN/GRNN creation in workbench causes erro

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What steps will reproduce the problem?
1. Open Encog Workbench
2. Open Project
3. New File (Machine Learning Method)
4. Choose PNN/GRNN
5. Pick any values of neuron counts (I chose 686 and 1) (Gaussian kernel, 
regression)
6. Error

We are very sorry but an unexpected error has occured.
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----------------------------------------------------------------------
Encog Version: 3.0.0
Encog Workbench Version: 3.0
Java Version: 1.6.0_26
Java Vendor: Apple Inc.
OS Name: Mac OS X
OS Arch: x86_64
OS Version: 10.7.1
Core Count: 8
----------------------------------------------------------------------
Exception: java.lang.NullPointerException
org.encog.neural.pnn.PersistBasicPNN.save(PersistBasicPNN.java:233)
org.encog.persist.EncogDirectoryPersistence.saveObject(EncogDirectoryPersistence
.java:184)
org.encog.persist.EncogDirectoryPersistence.saveObject(EncogDirectoryPersistence
.java:148)
org.encog.workbench.EncogWorkBench.save(EncogWorkBench.java:340)
org.encog.workbench.process.CreateNeuralNetwork.process(CreateNeuralNetwork.java
:123)
org.encog.workbench.process.CreateNewFile.performCreateFile(CreateNewFile.java:6
3)
org.encog.workbench.frames.document.EncogMenus.actionPerformed(EncogMenus.java:2
16)
org.encog.workbench.frames.document.EncogDocumentFrame.actionPerformed(EncogDocu
mentFrame.java:112)
javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:2028)
javax.swing.AbstractButton$Handler.actionPerformed(AbstractButton.java:2351)
javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel.java:387)
javax.swing.DefaultButtonModel.setPressed(DefaultButtonModel.java:242)
javax.swing.AbstractButton.doClick(AbstractButton.java:389)
javax.swing.plaf.basic.BasicMenuItemUI.doClick(BasicMenuItemUI.java:809)
com.apple.laf.AquaMenuItemUI.doClick(AquaMenuItemUI.java:137)
javax.swing.plaf.basic.BasicMenuItemUI$Handler.mouseReleased(BasicMenuItemUI.jav
a:850)
java.awt.Component.processMouseEvent(Component.java:6373)
javax.swing.JComponent.processMouseEvent(JComponent.java:3267)
java.awt.Component.processEvent(Component.java:6138)
java.awt.Container.processEvent(Container.java:2085)
java.awt.Component.dispatchEventImpl(Component.java:4735)
java.awt.Container.dispatchEventImpl(Container.java:2143)
java.awt.Component.dispatchEvent(Component.java:4565)
java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4621)
java.awt.LightweightDispatcher.processMouseEvent(Container.java:4282)
java.awt.LightweightDispatcher.dispatchEvent(Container.java:4212)
java.awt.Container.dispatchEventImpl(Container.java:2129)
java.awt.Window.dispatchEventImpl(Window.java:2478)
java.awt.Component.dispatchEvent(Component.java:4565)
java.awt.EventQueue.dispatchEventImpl(EventQueue.java:679)
java.awt.EventQueue.access$000(EventQueue.java:85)
java.awt.EventQueue$1.run(EventQueue.java:638)
java.awt.EventQueue$1.run(EventQueue.java:636)
java.security.AccessController.doPrivileged(Native Method)
java.security.AccessControlContext$1.doIntersectionPrivilege(AccessControlContex
t.java:87)
java.security.AccessControlContext$1.doIntersectionPrivilege(AccessControlContex
t.java:98)
java.awt.EventQueue$2.run(EventQueue.java:652)
java.awt.EventQueue$2.run(EventQueue.java:650)
java.security.AccessController.doPrivileged(Native Method)
java.security.AccessControlContext$1.doIntersectionPrivilege(AccessControlContex
t.java:87)
java.awt.EventQueue.dispatchEvent(EventQueue.java:649)
java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:296
)
java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:211)
java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:201
)
java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:196)
java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:188)
java.awt.EventDispatchThread.run(EventDispatchThread.java:122)

Original issue reported on code.google.com by jamesbak...@gmail.com on 21 Aug 2011 at 12:04