启动项目后，一点击报表页面就报这个错，这个是怎么回事

swb554983186

2015-09-18 09:49:36 加载模块：/UI2/system/components/justep/list/server ...
2015-09-18 09:49:36 加载模块：/UI2/system/components/justep/list/server
2015-09-18 09:49:36 结束-WINDOW生成中间文件: /UI2/SA/task/taskView/waitActivity.w
2015-09-18 09:49:36 开始-中间文件生成缓存文件: /UI2/SA/task/taskView/waitActivity.w
2015-09-18 09:49:37 action:<?xml version="1.0" encoding="UTF-8"?>
<action process="/szrx/hotLineReport/process/RpeortProcess/rpeortProcessProcess" activity="mainActivity" action-flag="__action_0__" executor="" execute-context="" name="monthReprot"><parameters xmlns:xbiz="http://www.justep.com/xbiz#"></parameters></action>
java.lang.reflect.InvocationTargetException
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:606)
    at com.justep.system.action.Engine.invokeActions(Native Method)
    at com.justep.system.action.Engine.invokeActions(Unknown Source)
    at com.justep.business.server.BusinessServer.doAction(Unknown Source)
    at com.justep.business.server.BusinessServer.doExcute(Unknown Source)
    at com.justep.business.server.BusinessServer.excute(Unknown Source)
    at com.justep.business.server.BusinessServer.excute(Unknown Source)
    at com.justep.business.server.BusinessServerServlet.execService(Unknown Source)
    at com.justep.business.server.BusinessServerServlet.service(Unknown Source)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:723)
    at com.justep.x.bs.BusinessServerServlet.service(Unknown Source)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:723)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
    at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
    at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
    at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
    at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:103)
    at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
    at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:293)
    at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:861)
    at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:606)
    at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:489)
    at java.lang.Thread.run(Thread.java:745)
Caused by: java.lang.ArithmeticException: / by zero
    at HotLineReport.monthReprot(HotLineReport.java:71)
    ... 27 more
[ERROR] 2015-09-18 09:49:37,256 com.justep.report.controller.DataController - 报表数据获取失败
/ by zero
2015-09-18 09:49:37 结束-中间文件生成缓存文件: /UI2/SA/task/taskView/waitActivity.w
2015-09-18 09:49:37 开始-WINDOW生成中间文件: /UI2/SA/task/taskView/submitActivity.w
com.justep.report.exception.ReportServerException: 报表数据获取失败
    at com.justep.report.controller.DataController.execute(Unknown Source)
    at com.justep.report.controller.GenericControllerChain.execute(Unknown Source)
    at com.justep.report.controller.InitController.execute(Unknown Source)
    at com.justep.report.controller.GenericControllerChain.execute(Unknown Source)
    at com.justep.report.Servlet.a(Unknown Source)
    at com.justep.report.Servlet.doPost(Unknown Source)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:643)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:723)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
    at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
    at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
    at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
    at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:103)
    at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
    at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:293)
    at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:861)
    at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:606)
    at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:489)
    at java.lang.Thread.run(Thread.java:745)
Caused by: com.justep.report.exception.ReportServerException: / by zero
    at com.justep.report.controller.DataController.a(Unknown Source)
    at com.justep.report.controller.DataController.a(Unknown Source)
    ... 20 more
Caused by: java.lang.Exception
    ... 22 more
2015-09-18 09:49:37 加载模块：/SA/task/taskView ...
2015-09-18 09:49:37 加载模块：/SA/task ...
2015-09-18 09:49:37 加载模块：/SA/task/logic/action ...
2015-09-18 09:49:37 加载模块：/SA/task/logic ...
2015-09-18 09:49:37 加载模块：/SA/task/ontology ...
2015-09-18 09:49:37 加载模块：/SA/task/logic/code ...
2015-09-18 09:49:37 结束-WINDOW生成中间文件: /UI2/SA/task/taskView/submitActivity.w
2015-09-18 09:49:37 开始-中间文件生成缓存文件: /UI2/SA/task/taskView/submitActivity.w
2015-09-18 09:49:37 结束-中间文件生成缓存文件: /UI2/SA/task/taskView/submitActivity.w

jishuang

自己写的java代码中有错误
java.lang.ArithmeticException: / by zero
    at HotLineReport.monthReprot(HotLineReport.java:71)

java代码调试跟一下看看