aspose file tools*
The moose likes JDBC and the fly likes problem while running application struts Big Moose Saloon
  Search | Java FAQ | Recent Topics | Flagged Topics | Hot Topics | Zero Replies
Register / Login
JavaRanch » Java Forums » Databases » JDBC
Bookmark "problem while running application struts" Watch "problem while running application struts" New topic
Author

problem while running application struts

Sakshi Bhatnagar
Greenhorn

Joined: Feb 06, 2013
Posts: 2
hi
I have developed a project using struts and evrything worked fine except one exception.I am not understanding the meaning of the exception.Kindly tell me what is the problem with my code.
here is the exception I am getting:

java.lang.NullPointerException: replacement
at java.util.regex.Matcher.replaceFirst(Matcher.java:949)
at java.lang.String.replaceFirst(String.java:2167)
at global.utility.HelperClass.populateQuery(HelperClass.java:24)
at global.utility.listPage.dao.ListPageDAO.getListPageData(ListPageDAO.java:54)
at global.utility.listPage.delegate.ListPageDelegate.getListPageData(ListPageDelegate.java:24)
at global.utility.listPage.util.ListpageUtil.getListPage(ListpageUtil.java:139)
at global.utility.listPage.action.ListPageACTION.LISTPAGE(ListPageACTION.java:86)
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:601)
at org.apache.struts.actions.DispatchAction.dispatchMethod(DispatchAction.java:280)
at org.apache.struts.actions.DispatchAction.execute(DispatchAction.java:216)
at org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:484)
at org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:274)
at org.apache.struts.action.ActionServlet.process(ActionServlet.java:1482)
at org.apache.struts.action.ActionServlet.doGet(ActionServlet.java:507)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:621)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:722)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:304)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:240)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:164)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:462)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:164)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:100)
at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:563)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:403)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:301)
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:162)
at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:309)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603)
at java.lang.Thread.run(Thread.java:722)
objStatus:::null
T Mishra
Ranch Hand

Joined: Apr 04, 2006
Posts: 108

Its a null pointer exception. Please check the reference / object getting passed into the methods as specified in the package below


Thanks,
Tushar (SCJP 1.5)
 
It is sorta covered in the JavaRanch Style Guide.
 
subject: problem while running application struts