current trunk + macosx + jdk 1.5
in pluginmanager, switch to Downloaded.
add a bunch of nbms to the update center (originating from the maven support's
trunk)
1. The nbms have version 3.0.3, however the UI shows versions from the dev
update center (3.0.2).
2. Only experimental modules, not on the AU have the correct 3.0.3 version.
However these have wrong size of 0Kb.
3. upon clicking Install button, I get this exception and nothing happens.

java.lang.AssertionError: Primary [14] plus Required [10] is All [20] 
	at
org.netbeans.modules.autoupdate.ui.wizards.OperationWizardModel.getAllUpdateElements(OperationWizardModel.java:124)
	at
org.netbeans.modules.autoupdate.ui.wizards.InstallUnitWizardModel.allLicensesApproved(InstallUnitWizardModel.java:63)
	at
org.netbeans.modules.autoupdate.ui.wizards.InstallUnitWizardIterator.createPanels(InstallUnitWizardIterator.java:54)
	at
org.netbeans.modules.autoupdate.ui.wizards.InstallUnitWizardIterator.<init>(InstallUnitWizardIterator.java:42)
	at
org.netbeans.modules.autoupdate.ui.InstallUnitWizard.invokeWizard(InstallUnitWizard.java:43)
	at
org.netbeans.modules.autoupdate.ui.UnitTab.bTabActionActionPerformed(UnitTab.java:436)
	at org.netbeans.modules.autoupdate.ui.UnitTab.access$600(UnitTab.java:47)
	at org.netbeans.modules.autoupdate.ui.UnitTab$6.actionPerformed(UnitTab.java:291)
	at javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:1882)
	at javax.swing.AbstractButton$Handler.actionPerformed(AbstractButton.java:2202)
	at javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel.java:420)
	at javax.swing.DefaultButtonModel.setPressed(DefaultButtonModel.java:258)
	at
javax.swing.plaf.basic.BasicButtonListener.mouseReleased(BasicButtonListener.java:234)
	at java.awt.Component.processMouseEvent(Component.java:5554)
	at javax.swing.JComponent.processMouseEvent(JComponent.java:3126)
	at java.awt.Component.processEvent(Component.java:5319)
	at java.awt.Container.processEvent(Container.java:2010)
	at java.awt.Component.dispatchEventImpl(Component.java:4021)
	at java.awt.Container.dispatchEventImpl(Container.java:2068)
	at java.awt.Component.dispatchEvent(Component.java:3869)
	at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4256)
	at java.awt.LightweightDispatcher.processMouseEvent(Container.java:3936)
	at java.awt.LightweightDispatcher.dispatchEvent(Container.java:3866)
	at java.awt.Container.dispatchEventImpl(Container.java:2054)
	at java.awt.Window.dispatchEventImpl(Window.java:1774)
	at java.awt.Component.dispatchEvent(Component.java:3869)
[catch] at java.awt.EventQueue.dispatchEvent(EventQueue.java:463)
	at
java.awt.EventDispatchThread.pumpOneEventForHierarchy(EventDispatchThread.java:269)
	at
java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:190)
	at
java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:180)
	at java.awt.Dialog$1.run(Dialog.java:517)
	at java.awt.Dialog$2.run(Dialog.java:545)
	at java.security.AccessController.doPrivileged(Native Method)
	at java.awt.Dialog.show(Dialog.java:543)
	at org.netbeans.core.windows.services.NbPresenter.superShow(NbPresenter.java:812)
	at org.netbeans.core.windows.services.NbPresenter.doShow(NbPresenter.java:846)
	at org.netbeans.core.windows.services.NbPresenter.run(NbPresenter.java:834)
	at org.netbeans.core.windows.services.NbPresenter.run(NbPresenter.java:82)
	at org.openide.util.Mutex.doEventAccess(Mutex.java:1201)
	at org.openide.util.Mutex.readAccess(Mutex.java:220)
	at org.netbeans.core.windows.services.NbPresenter.show(NbPresenter.java:819)
	at java.awt.Component.show(Component.java:1300)
	at java.awt.Component.setVisible(Component.java:1253)
	at
org.netbeans.modules.autoupdate.ui.actions.PluginManagerAction.performAction(PluginManagerAction.java:50)
	at
org.openide.util.actions.CallableSystemAction$1.run(CallableSystemAction.java:96)
	at
org.netbeans.modules.openide.util.ActionsBridge.doPerformAction(ActionsBridge.java:55)
	at
org.openide.util.actions.CallableSystemAction.actionPerformed(CallableSystemAction.java:92)
	at javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:1882)
	at javax.swing.AbstractButton$Handler.actionPerformed(AbstractButton.java:2202)
	at javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel.java:420)
	at javax.swing.DefaultButtonModel.setPressed(DefaultButtonModel.java:258)
	at javax.swing.AbstractButton.doClick(AbstractButton.java:334)
	at apple.laf.ScreenMenuItem.actionPerformed(ScreenMenuItem.java:104)
	at java.awt.MenuItem.processActionEvent(MenuItem.java:597)
	at java.awt.MenuItem.processEvent(MenuItem.java:556)
	at java.awt.MenuComponent.dispatchEventImpl(MenuComponent.java:298)
	at java.awt.MenuComponent.dispatchEvent(MenuComponent.java:286)
	at java.awt.EventQueue.dispatchEvent(EventQueue.java:466)
	at
java.awt.EventDispatchThread.pumpOneEventForHierarchy(EventDispatchThread.java:269)
	at
java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:190)
	at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:184)
	at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:176)
	at java.awt.EventDispatchThread.run(EventDispatchThread.java:110)