采购入库单生成应付单报错

eas80中，采购入库单做了二次开发，有PurInWarehsBillControllerBeanEx，并打包到eas_sp中部署到server下的lib/sp目录和deploy目录下
由采购入库单生成应付单时，选择的采购入库单分录超过200行，系统就报错
Error message:null
Caused exception message is: com.kingdee.eas.scm.im.inv.app.PurInWarehsBillControllerBeanEx
Stack trace:
com.kingdee.bos.BOSClassNotFoundException: null
Caused exception message is: com.kingdee.eas.scm.im.inv.app.PurInWarehsBillControllerBeanEx
at com.kingdee.bos.framework.ejb.EJBFactory.getEJBusinessController(EJBFactory.java:287)
at com.kingdee.bos.framework.ejb.EJBFactory.getEJBusinessController(EJBFactory.java:216)
at com.kingdee.bos.framework.ejb.EJBFactory.getBusinessController(EJBFactory.java:198)
at com.kingdee.eas.base.btp.app.BTPManagerControllerBean.getBillList(BTPManagerControllerBean.java:3880)
at com.kingdee.eas.base.btp.app.BTPManagerControllerBean._transformForBotp(BTPManagerControllerBean.java:3354)
at com.kingdee.eas.base.btp.app.AbstractBTPManagerControllerBean.transformForBotp(AbstractBTPManagerControllerBean.java:1067)
at sun.reflect.GeneratedMethodAccessor650.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:55)
at java.lang.reflect.Method.invoke(Method.java:619)
at com.kingdee.bos.transaction.EJBTxFacade.TxInvokerBean.invoke(TxInvokerBean.java:125)
at com.kingdee.bos.transaction.EJBTxFacade.TxInvokerBean.INVOKE_REQUIRED(TxInvokerBean.java:60)
at com.kingdee.bos.transaction.EJBTxFacade.TxInvokerBean_LocalObjectImpl_2.INVOKE_REQUIRED(Unknown Source)
at com.kingdee.bos.transaction.EJBTransactionProxy.invoke(EJBTransactionProxy.java:171)
at com.kingdee.bos.transaction.EJBTransactionProxy.invoke(EJBTransactionProxy.java:324)
at com.sun.proxy.$Proxy276.transformForBotp(Unknown Source)
at com.kingdee.eas.base.btp.BTPManager.transformForBotp(BTPManager.java:741)
at sun.reflect.GeneratedMethodAccessor649.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:55)
at java.lang.reflect.Method.invoke(Method.java:619)
at com.kingdee.bos.ResponseInvocationHandler.invoke(ResponseInvocationHandler.java:194)
at com.sun.proxy.$Proxy286.transformForBotp(Unknown Source)
at com.kingdee.eas.scm.common.botputils.app.SCMBotpJobHandler.execute(SCMBotpJobHandler.java:75)
at com.kingdee.bos.service.job.core.ThreadWorker.execute(ThreadWorker.java:161)
at com.kingdee.bos.service.job.core.ThreadWorker.run(ThreadWorker.java:106)
at java.lang.Thread.run(Thread.java:853)
Caused by: java.lang.ClassNotFoundException: com.kingdee.eas.scm.im.inv.app.PurInWarehsBillControllerBeanEx
at java.lang.Class.forNameImpl(Native Method)
at java.lang.Class.forName(Class.java:199)
at com.kingdee.bos.framework.ejb.EJBFactory.getEJBusinessController(EJBFactory.java:234)
... 24 more
Caused by: java.lang.ClassNotFoundException
java.lang.ClassNotFoundException: com.kingdee.eas.scm.im.inv.app.PurInWarehsBillControllerBeanEx
at java.lang.Class.forNameImpl(Native Method)
at java.lang.Class.forName(Class.java:199)
at com.kingdee.bos.framework.ejb.EJBFactory.getEJBusinessController(EJBFactory.java:234)
at com.kingdee.bos.framework.ejb.EJBFactory.getEJBusinessController(EJBFactory.java:216)
at com.kingdee.bos.framework.ejb.EJBFactory.getBusinessController(EJBFactory.java:198)
at com.kingdee.eas.base.btp.app.BTPManagerControllerBean.getBillList(BTPManagerControllerBean.java:3880)
at com.kingdee.eas.base.btp.app.BTPManagerControllerBean._transformForBotp(BTPManagerControllerBean.java:3354)
at com.kingdee.eas.base.btp.app.AbstractBTPManagerControllerBean.transformForBotp(AbstractBTPManagerControllerBean.java:1067)
at sun.reflect.GeneratedMethodAccessor650.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:55)
at java.lang.reflect.Method.invoke(Method.java:619)
at com.kingdee.bos.transaction.EJBTxFacade.TxInvokerBean.invoke(TxInvokerBean.java:125)
at com.kingdee.bos.transaction.EJBTxFacade.TxInvokerBean.INVOKE_REQUIRED(TxInvokerBean.java:60)
at com.kingdee.bos.transaction.EJBTxFacade.TxInvokerBean_LocalObjectImpl_2.INVOKE_REQUIRED(Unknown Source)
at com.kingdee.bos.transaction.EJBTransactionProxy.invoke(EJBTransactionProxy.java:171)
at com.kingdee.bos.transaction.EJBTransactionProxy.invoke(EJBTransactionProxy.java:324)
at com.sun.proxy.$Proxy276.transformForBotp(Unknown Source)
at com.kingdee.eas.base.btp.BTPManager.transformForBotp(BTPManager.java:741)
at sun.reflect.GeneratedMethodAccessor649.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:55)
at java.lang.reflect.Method.invoke(Method.java:619)
at com.kingdee.bos.ResponseInvocationHandler.invoke(ResponseInvocationHandler.java:194)
at com.sun.proxy.$Proxy286.transformForBotp(Unknown Source)
at com.kingdee.eas.scm.common.botputils.app.SCMBotpJobHandler.execute(SCMBotpJobHandler.java:75)
at com.kingdee.bos.service.job.core.ThreadWorker.execute(ThreadWorker.java:161)
at com.kingdee.bos.service.job.core.ThreadWorker.run(ThreadWorker.java:106)
at java.lang.Thread.run(Thread.java:853)，
不超过200行就可以，该报错信息在事务控制中能够查询到，
请问如何解决