对房地产付款单进行预算扣减，无法得到正确的返回值。查询客户端日志发现有报错

[2016-09-10 11:31:12,272 INFO]tbpPaymentBill_Configure_Order:pnlPayBillHeader|pnlPayBillEntry|pnlPayBillPartA
[2016-09-10 11:31:12,381 INFO]执行表达式:com.kingdee.eas.framework.expression.BizRuleExecuteHelper.setRuleTableSumField(owner,kdtPartA,new String[] {});...
[2016-09-10 11:31:12,459 INFO]失败！执行脚本出现异常！
com.kingdee.bos.kscript.runtime.InterpreterException: 第1行执行出错:
com.kingdee.eas.framework.expression.BizRuleExecuteHelper.setRuleTableSumField(owner,kdtPartA,new String[] {});
expr is : __defaultObject__.kdtPartA
Expression is:__defaultObject__.kdtPartA
at com.kingdee.bos.kscript.runtime.Interpreter.evalPropExpr(Interpreter.java:2836)
at com.kingdee.bos.kscript.runtime.Interpreter.evalIndentExpr(Interpreter.java:3153)
at com.kingdee.bos.kscript.runtime.Interpreter.evalExprInternal(Interpreter.java:1306)
at com.kingdee.bos.kscript.runtime.Interpreter.evalMethodInvokeExpr(Interpreter.java:2365)
at com.kingdee.bos.kscript.runtime.Interpreter.evalExprInternal(Interpreter.java:1312)
at com.kingdee.bos.kscript.runtime.Interpreter.eval(Interpreter.java:496)
at com.kingdee.bos.kscript.runtime.Interpreter.eval(Interpreter.java:459)
at com.kingdee.eas.framework.expression.BizExpressionExecutor.execute(BizExpressionExecutor.java:39)
at com.kingdee.eas.framework.expression.BizExpressionExecutor.execute(BizExpressionExecutor.java:29)
at com.kingdee.eas.framework.expression.BizRuleExecutor.execute(BizRuleExecutor.java:71)
at com.kingdee.eas.framework.expression.BizRuleExecutor.actionPerformed(BizRuleExecutor.java:88)
at com.kingdee.eas.framework.expression.BizRuleExecutor.registerListener(BizRuleExecutor.java:191)
at com.kingdee.eas.framework.expression.BizRuleExecutor.execute(BizRuleExecutor.java:56)
at com.kingdee.eas.framework.expression.BizRuleSetExecutor.execute(BizRuleSetExecutor.java:38)
at com.kingdee.eas.ep.client.runtime.UIConfigureExecutor.executeRuleSet(UIConfigureExecutor.java:196)
at com.kingdee.eas.ep.client.runtime.UIConfigureExecutor.executeUIConfigure(UIConfigureExecutor.java:170)
at com.kingdee.eas.ep.client.runtime.UIConfigureExecutor.executeUIConfigure(UIConfigureExecutor.java:137)
at com.kingdee.eas.ep.client.runtime.UIConfigureExecutor.executeUIConfigure(UIConfigureExecutor.java:110)
at com.kingdee.eas.ep.client.runtime.DynamicExtendService.doModify(DynamicExtendService.java:90)
at com.kingdee.eas.ep.client.runtime.DynamicExtendService.beforeDoLayout(DynamicExtendService.java:145)
at com.kingdee.eas.framework.client.NewUILifeCycleHander.fireBeforeDoLayout(NewUILifeCycleHander.java:164)
at com.kingdee.eas.framework.client.CoreUI.doLayout(CoreUI.java:3647)
at java.awt.Container.validateTree(Container.java:1505)
at java.awt.Container.validateTree(Container.java:1511)
at java.awt.Container.validate(Container.java:1478)
at com.kingdee.eas.base.uiframe.client.BodyUI.setCurTabIndex(BodyUI.java:153)
at com.kingdee.eas.base.uiframe.client.UIObjectManager.changeTab(UIObjectManager.java:120)
at com.kingdee.eas.base.uiframe.client.UIObjectManager.changeTab(UIObjectManager.java:128)
at com.kingdee.eas.base.uiframe.client.UINewTab.show(UINewTab.java:42)
at com.kingdee.eas.framework.client.ListUI.actionEdit_actionPerformed(ListUI.java:4338)
at com.kingdee.eas.fi.cas.client.CasPaymentBillListUI.actionEdit_actionPerformed(CasPaymentBillListUI.java:827)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at com.kingdee.bos.ui.face.ItemAction.reflectPerformAction(ItemAction.java:438)
at com.kingdee.bos.ui.face.ItemAction.innerActionPerformed(ItemAction.java:396)
at com.kingdee.eas.framework.client.AbstractListUI$ActionEdit.actionPerformed(AbstractListUI.java:1218)
at com.kingdee.bos.appframework.client.servicebinding.ActionProxy.actionPerformedInvoke(ActionProxy.java:174)
at com.kingdee.bos.appframework.client.servicebinding.ActionProxy.actionPerformed(ActionProxy.java:102)
at javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:1995)
at com.kingdee.bos.ctrl.swing.KDWorkButton.fireActionPerformed(KDWorkButton.java:567)
at javax.swing.AbstractButton$Handler.actionPerformed(AbstractButton.java:2318)
at javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel.java:387)
at javax.swing.DefaultButtonModel.setPressed(DefaultButtonModel.java:242)
at javax.swing.plaf.basic.BasicButtonListener.mouseReleased(BasicButtonListener.java:236)
at java.awt.AWTEventMulticaster.mouseReleased(AWTEventMulticaster.java:272)
at java.awt.AWTEventMulticaster.mouseReleased(AWTEventMulticaster.java:272)
at java.awt.AWTEventMulticaster.mouseReleased(AWTEventMulticaster.java:272)
at java.awt.AWTEventMulticaster.mouseReleased(AWTEventMulticaster.java:272)
at java.awt.Component.processMouseEvent(Component.java:6297)
at javax.swing.JComponent.processMouseEvent(JComponent.java:3275)
at com.kingdee.bos.ctrl.swing.KDWorkButton.processMouseEvent(KDWorkButton.java:861)
at java.awt.Component.processEvent(Component.java:6062)
at java.awt.Container.processEvent(Container.java:2039)
at java.awt.Component.dispatchEventImpl(Component.java:4660)
at java.awt.Container.dispatchEventImpl(Container.java:2097)
at java.awt.Component.dispatchEvent(Component.java:4488)
at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4575)
at java.awt.LightweightDispatcher.processMouseEvent(Container.java:4236)
at java.awt.LightweightDispatcher.dispatchEvent(Container.java:4166)
at java.awt.Container.dispatchEventImpl(Container.java:2083)
at java.awt.Window.dispatchEventImpl(Window.java:2489)
at java.awt.Component.dispatchEvent(Component.java:4488)
at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:674)
at java.awt.EventQueue.access$400(EventQueue.java:81)
at java.awt.EventQueue$2.run(EventQueue.java:633)
at java.awt.EventQueue$2.run(EventQueue.java:631)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.AccessControlContext$1.doIntersectionPrivilege(AccessControlContext.java:87)
at java.security.AccessControlContext$1.doIntersectionPrivilege(AccessControlContext.java:98)
at java.awt.EventQueue$3.run(EventQueue.java:647)
at java.awt.EventQueue$3.run(EventQueue.java:645)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.AccessControlContext$1.doIntersectionPrivilege(AccessControlContext.java:87)
at java.awt.EventQueue.dispatchEvent(EventQueue.java:644)
at com.kingdee.bos.invokecounter.RPCLogEventQueue.dispatchEvent(RPCLogEventQueue.java:176)
at sun.reflect.GeneratedMethodAccessor10.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at com.kingdee.eas.client.recorder.UserInputEventQueue.myDispatchEvent(UserInputEventQueue.java:126)
at com.kingdee.eas.client.recorder.UserInputEventQueue.dispatchEvent(UserInputEventQueue.java:59)
at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:269)
at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:184)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:174)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:169)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:161)
at java.awt.EventDispatchThread.run(EventDispatchThread.java:122)