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java.lang.NullPointerException: null	at org.compiere.model.CalloutOrder.bPartner(CalloutOrder.java:408)	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)	at java.lang.reflect.Method.invoke(Method.java:498)	at org.compiere.model.CalloutEngine.lambda$createCalloutMethodExecutor$3(CalloutEngine.java:201)	at org.compiere.model.CalloutEngine.start(CalloutEngine.java:71)	at org.adempiere.ad.callout.api.impl.MethodNameCalloutInstance.execute(MethodNameCalloutInstance.java:120)	at org.adempiere.ad.callout.api.impl.CalloutExecutor.execute(CalloutExecutor.java:236)	at org.adempiere.ad.callout.api.impl.CalloutExecutor.execute(CalloutExecutor.java:109)	at org.compiere.model.GridTab.processCallout(GridTab.java:3322)	at org.compiere.model.GridTab.processFieldChange(GridTab.java:3243)	at org.compiere.grid.GridController.dataStatusChanged(GridController.java:1265)	at org.compiere.model.GridTab.fireDataStatusChanged(GridTab.java:2685)	at org.compiere.model.GridTab.dataStatusChanged(GridTab.java:2651)	at org.compiere.model.GridTable.fireDataStatusChanged(GridTable.java:3298)	at org.compiere.model.GridTable.setValueAt(GridTable.java:1244)	at org.compiere.grid.GridController.vetoableChange(GridController.java:1750)	at java.beans.VetoableChangeSupport.fireVetoableChange(VetoableChangeSupport.java:375)	at java.beans.VetoableChangeSupport.fireVetoableChange(VetoableChangeSupport.java:271)	at javax.swing.JComponent.fireVetoableChange(JComponent.java:4534)	at org.compiere.grid.ed.VLookup.actionCombo(VLookup.java:1011)	at org.compiere.grid.ed.VLookupAutoCompleter.setUserObject(VLookupAutoCompleter.java:377)	at org.compiere.apps.search.FieldAutoCompleter.acceptedListItem(FieldAutoCompleter.java:430)	at org.compiere.apps.search.FieldAutoCompleter$3.actionPerformed(FieldAutoCompleter.java:190)	at javax.swing.JComponent$ActionStandin.actionPerformed(JComponent.java:3425)	at javax.swing.SwingUtilities.notifyAction(SwingUtilities.java:1663)	at javax.swing.JComponent.processKeyBinding(JComponent.java:2882)	at org.compiere.swing.CTextField.processKeyBinding(CTextField.java:302)	at javax.swing.JComponent.processKeyBindings(JComponent.java:2929)	at javax.swing.JComponent.processKeyEvent(JComponent.java:2845)	at java.awt.Component.processEvent(Component.java:6310)	at java.awt.Container.processEvent(Container.java:2236)	at java.awt.Component.dispatchEventImpl(Component.java:4889)	at java.awt.Container.dispatchEventImpl(Container.java:2294)	at java.awt.Component.dispatchEvent(Component.java:4711)	at java.awt.KeyboardFocusManager.redispatchEvent(KeyboardFocusManager.java:1954)	at java.awt.DefaultKeyboardFocusManager.dispatchKeyEvent(DefaultKeyboardFocusManager.java:806)	at java.awt.DefaultKeyboardFocusManager.preDispatchKeyEvent(DefaultKeyboardFocusManager.java:1074)	at java.awt.DefaultKeyboardFocusManager.typeAheadAssertions(DefaultKeyboardFocusManager.java:945)	at java.awt.DefaultKeyboardFocusManager.dispatchEvent(DefaultKeyboardFocusManager.java:771)	at java.awt.Component.dispatchEventImpl(Component.java:4760)	at java.awt.Container.dispatchEventImpl(Container.java:2294)	at java.awt.Window.dispatchEventImpl(Window.java:2746)	at java.awt.Component.dispatchEvent(Component.java:4711)	at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:758)	at java.awt.EventQueue.access$500(EventQueue.java:97)	at java.awt.EventQueue$3.run(EventQueue.java:709)	at java.awt.EventQueue$3.run(EventQueue.java:703)	at java.security.AccessController.doPrivileged(Native Method)	at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:76)	at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:86)	at java.awt.EventQueue$4.run(EventQueue.java:731)	at java.awt.EventQueue$4.run(EventQueue.java:729)	at java.security.AccessController.doPrivileged(Native Method)	at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:76)	at java.awt.EventQueue.dispatchEvent(EventQueue.java:728)	at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:201)	at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:116)	at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:105)	at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:101)	at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:93)	at java.awt.EventDispatchThread.run(EventDispatchThread.java:82)