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From Matt Hogstrom <m...@hogstrom.org>
Subject Re: [jira] Commented: (GERONIMO-1674) Daytrader gets NullPointerException attempting to log in a user
Date Wed, 28 Jun 2006 18:15:36 GMT


J. Stan Cox wrote:
> 
> So, at the very least the code needs to be fixed to support a smaller 
> quote population.  Perhaps we could also provide 2 basic settings on the 
> configuration page:
> 
> 1) Default, out of box sample application (low number of users quotes)

Agreed...200 users and 400 quotes is acceptable for our internal testing and those using Derby.
 I 
think this is a fair number to kick the tires.

> 2) Performance test,  larger default values (e.g. 1000 quotes, 500 users)

Performance testing is so dependent on the configuration being tested I think we're better
to offer 
guidance in a FAQ rather than specifying a value.   I'd never recommend people simply compare

numbers based on population.   I think that is inviting trouble.

> 
> It would be good to settle on specific values for performance testing so 
> results will be comparable.
> 
> Stan.
> 
> Dain Sundstrom wrote:
>> Chris,
>>
>> DayTrader has two uses to us.  One is clearly as a performance 
>> benchmark, but DayTrader is also a very useful sample (test) 
>> application that touches most parts of the J2EE specification.  We 
>> dropped the default population sizes because Derby is so slow at 
>> inserts it would take several minutes to repopulate.  Also, the 
>> performance of Derby is so bad that you don't need much data to get 
>> reliable results.  If you switch to a real database, you need a much 
>> bigger data set.
>>
>> -dain
>>
>> On Jun 28, 2006, at 7:56 AM, Christopher Blythe wrote:
>>
>>> Joe...
>>>
>>> I've worked on Trade for quite some time and am slowly starting to 
>>> dig into DayTrader. Anyway, just wanted to respond to your question 
>>> since I think I know what the problem is.
>>>
>>> In order for the MarketSummary to be display, at least 200 quotes 
>>> need to be populated in the database. If you look at the queries the 
>>> MarketSummary uses (either the EJBQL or SQL in TradeDirect.java) you 
>>> will see something like this...
>>>
>>> <ejb-ql>SELECT OBJECT(q) FROM Quote q WHERE q.symbol LIKE 's:1__' 
>>> ORDER BY q.change DESC</ejb-ql>
>>>
>>> This indicates that the MarketSummary needs quotes between 100 and 
>>> 199. If we are only populating 10 quotes by default, this query will 
>>> return 0 results and I imagine the MarketSummary will throw an 
>>> exception (as indicated by the stack traces).
>>>
>>> To get you up and running, I would re-populate your database with at 
>>> least 200 quotes. The default for Trade was actually 1000.
>>>
>>> I also suggest that the default be changed from 10 to something more 
>>> realistic for performance testing ( i.e. 1000 or even higher).
>>>
>>> Hope this helps...
>>>
>>> Chris Blythe
>>>
>>> On 6/27/06, Joe Bohn (JIRA) <dev@geronimo.apache.org > wrote:    [ 
>>> http://issues.apache.org/jira/browse/GERONIMO-1674?page=comments#action_12418036

>>> ]
>>>
>>> Joe Bohn commented on GERONIMO-1674:
>>> ------------------------------------
>>>
>>> I still get this error.  I get it with tomcat as well as jetty.   I 
>>> think I may very well be doing something wrong.  Here is my scenario 
>>> after successfully deploying daytrader.
>>>
>>> 1)  select configuration->configure Daytrader runtime paramenters 
>>> ...  and change the max users and max quotes to 10 each.   Note, I'm 
>>> not really running daytrader for performance stats ... I was just 
>>> using it to verify geronimo functions after making some substantial 
>>> changes as a way to verify that I hadn't broken things too radically.
>>> 2)  from confirguration select (Re)-populate Daytrader Database.  
>>> This appears to be successful.
>>> 3)  Next, from under Configuration utilities I select "Test DayTrader 
>>> Scenario" and I get this attached exception.   It does seem strange 
>>> that if I do this a number of time eventually things seem to start 
>>> working.
>>>
>>> Here is another stack trace (unfortunately from jetty again but I do 
>>> get it with tomcat as well) from a recent attempt on 1.1.
>>>
>>> ########## Trade configuration update. Current config:
>>>
>>>                 RunTimeMode:            Direct
>>>                 OrderProcessingMode:    Synchronous
>>>                 AcessMode:              Standard
>>>                 Workload Mix:           Standard
>>>                 Web Interface:          JSP
>>>                 CachingType:            No Caching
>>>                 #Trade  Users:          10
>>>                 #Trade Quotes:          10
>>>                 Long Run Enabled:               true
>>>
>>> 10:47:43,984 ERROR [Log] Error: TradeDirect:login -- error logging in 
>>> user
>>>         java.lang.NullPointerException
>>> java.lang.NullPointerException
>>>         at 
>>> org.apache.geronimo.samples.daytrader.util.FinancialUtils.computeGainPercent(FinancialUtils.java:43)

>>>
>>>         at 
>>> org.apache.geronimo.samples.daytrader.MarketSummaryDataBean 
>>> .<init>(MarketSummaryDataBean.java:54)
>>>         at 
>>> org.apache.geronimo.samples.daytrader.direct.TradeDirect.getMarketSummary(TradeDirect.java:152)

>>>
>>>         at 
>>> org.apache.geronimo.samples.daytrader.TradeAction.getMarketSummary 
>>> (TradeAction.java:100)
>>>         at jsp.marketSummary_jsp._jspService(marketSummary_jsp.java:55)
>>>         at 
>>> org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:97)
>>>         at javax.servlet.http.HttpServlet.service (HttpServlet.java:688)
>>>         at 
>>> org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:428)
>>>         at 
>>> org.apache.geronimo.jetty.JettyServletHolder.handle(JettyServletHolder.java:97)

>>>
>>>         at 
>>> org.mortbay.jetty.servlet.WebApplicationHandler$CachedChain.doFilter 
>>> (WebApplicationHandler.java:830)
>>>         at 
>>> org.mortbay.jetty.servlet.JSR154Filter.doFilter(JSR154Filter.java:170)
>>>         at 
>>> org.mortbay.jetty.servlet.WebApplicationHandler$CachedChain.doFilter(WebApplicationHandler.java

>>> :821)
>>>         at 
>>> org.mortbay.jetty.servlet.WebApplicationHandler.dispatch(WebApplicationHandler.java:471)

>>>
>>>         at 
>>> org.apache.geronimo.jetty.JettyWebApplicationHandler.dispatch(JettyWebApplicationHandler.java:58)

>>>
>>>         at 
>>> org.mortbay.jetty.servlet.Dispatcher.dispatch(Dispatcher.java:283)
>>>         at 
>>> org.mortbay.jetty.servlet.Dispatcher.include(Dispatcher.java:163)
>>>         at org.apache.jasper.runtime.JspRuntimeLibrary.include 
>>> (JspRuntimeLibrary.java:966)
>>>         at jsp.tradehome_jsp._jspService(tradehome_jsp.java:151)
>>>         at 
>>> org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:97)
>>>         at javax.servlet.http.HttpServlet.service (HttpServlet.java:688)
>>>         at 
>>> org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:428)
>>>         at 
>>> org.apache.geronimo.jetty.JettyServletHolder.handle(JettyServletHolder.java:97)

>>>
>>>         at 
>>> org.mortbay.jetty.servlet.WebApplicationHandler$CachedChain.doFilter 
>>> (WebApplicationHandler.java:830)
>>>         at 
>>> org.mortbay.jetty.servlet.JSR154Filter.doFilter(JSR154Filter.java:170)
>>>         at 
>>> org.mortbay.jetty.servlet.WebApplicationHandler$CachedChain.doFilter(WebApplicationHandler.java

>>> :821)
>>>         at 
>>> org.mortbay.jetty.servlet.WebApplicationHandler.dispatch(WebApplicationHandler.java:471)

>>>
>>>         at 
>>> org.apache.geronimo.jetty.JettyWebApplicationHandler.dispatch(JettyWebApplicationHandler.java:58)

>>>
>>>         at 
>>> org.mortbay.jetty.servlet.Dispatcher.dispatch(Dispatcher.java:283)
>>>         at 
>>> org.mortbay.jetty.servlet.Dispatcher.include(Dispatcher.java:163)
>>>         at 
>>> org.apache.geronimo.samples.daytrader.web.TradeServletAction.requestDispatch

>>> (TradeServletAction.java:730)
>>>         at 
>>> org.apache.geronimo.samples.daytrader.web.TradeServletAction.doHome(TradeServletAction.java:330)

>>>
>>>         at 
>>> org.apache.geronimo.samples.daytrader.web.TradeServletAction.doLogin 
>>> (TradeServletAction.java:373)
>>>         at 
>>> org.apache.geronimo.samples.daytrader.web.TradeAppServlet.performTask(TradeAppServlet.java:127)

>>>
>>>         at 
>>> org.apache.geronimo.samples.daytrader.web.TradeAppServlet.doGet(TradeAppServlet.java

>>> :78)
>>>         at javax.servlet.http.HttpServlet.service(HttpServlet.java:595)
>>>         at javax.servlet.http.HttpServlet.service(HttpServlet.java:688)
>>>         at 
>>> org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java :428)
>>>         at 
>>> org.apache.geronimo.jetty.JettyServletHolder.handle(JettyServletHolder.java:97)

>>>
>>>         at 
>>> org.mortbay.jetty.servlet.WebApplicationHandler$CachedChain.doFilter(WebApplicationHandler.java:830)

>>>
>>>         at 
>>> org.mortbay.jetty.servlet.JSR154Filter.doFilter(JSR154Filter.java:170)
>>>         at 
>>> org.mortbay.jetty.servlet.WebApplicationHandler$CachedChain.doFilter(WebApplicationHandler.java:821)

>>>
>>>         at org.mortbay.jetty.servlet.WebApplicationHandler.dispatch 
>>> (WebApplicationHandler.java:471)
>>>         at 
>>> org.apache.geronimo.jetty.JettyWebApplicationHandler.dispatch(JettyWebApplicationHandler.java:58)

>>>
>>>         at 
>>> org.mortbay.jetty.servlet.Dispatcher.dispatch(Dispatcher.java:283)
>>>         at 
>>> org.mortbay.jetty.servlet.Dispatcher.include(Dispatcher.java:163)
>>>         at 
>>> org.apache.geronimo.samples.daytrader.web.TradeScenarioServlet.performTask(TradeScenarioServlet.java:202)

>>>
>>>         at 
>>> org.apache.geronimo.samples.daytrader.web.TradeScenarioServlet.doGet 
>>> (TradeScenarioServlet.java:75)
>>>         at javax.servlet.http.HttpServlet.service(HttpServlet.java:595)
>>>         at javax.servlet.http.HttpServlet.service(HttpServlet.java:688)
>>>         at org.mortbay.jetty.servlet.ServletHolder.handle 
>>> (ServletHolder.java:428)
>>>         at 
>>> org.apache.geronimo.jetty.JettyServletHolder.handle(JettyServletHolder.java:97)

>>>
>>>         at 
>>> org.mortbay.jetty.servlet.WebApplicationHandler$CachedChain.doFilter(WebApplicationHandler.java

>>> :830)
>>>         at 
>>> org.mortbay.jetty.servlet.JSR154Filter.doFilter(JSR154Filter.java:170)
>>>         at 
>>> org.mortbay.jetty.servlet.WebApplicationHandler$CachedChain.doFilter(WebApplicationHandler.java:821)

>>>
>>>         at org.mortbay.jetty.servlet.WebApplicationHandler.dispatch 
>>> (WebApplicationHandler.java:471)
>>>         at 
>>> org.apache.geronimo.jetty.JettyWebApplicationHandler.dispatch(JettyWebApplicationHandler.java:58)

>>>
>>>         at 
>>> org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java 
>>> :568)
>>>         at org.mortbay.http.HttpContext.handle(HttpContext.java:1530)
>>>         at 
>>> org.mortbay.jetty.servlet.WebApplicationContext.handle(WebApplicationContext.java:633)

>>>
>>>         at org.mortbay.http.HttpContext.handle (HttpContext.java:1482)
>>>         at org.mortbay.http.HttpServer.service(HttpServer.java:909)
>>>         at 
>>> org.mortbay.http.HttpConnection.service(HttpConnection.java:816)
>>>         at org.mortbay.http.HttpConnection.handleNext 
>>> (HttpConnection.java:982)
>>>         at 
>>> org.mortbay.http.HttpConnection.handle(HttpConnection.java:833)
>>>         at 
>>> org.mortbay.http.SocketListener.handleConnection(SocketListener.java:244) 
>>>
>>>         at org.mortbay.util.ThreadedServer.handle 
>>> (ThreadedServer.java:357)
>>>         at 
>>> org.mortbay.util.ThreadPool$PoolThread.run(ThreadPool.java:534)
>>> 10:47:44,015 WARN  [/daytrader] /daytrader/scenario:
>>> java.lang.NullPointerException
>>>         at jsp.marketSummary_jsp._jspService (marketSummary_jsp.java:58)
>>>         at 
>>> org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:97)
>>>         at javax.servlet.http.HttpServlet.service(HttpServlet.java:688)
>>>         at org.mortbay.jetty.servlet.ServletHolder.handle 
>>> (ServletHolder.java:428)
>>>         at 
>>> org.apache.geronimo.jetty.JettyServletHolder.handle(JettyServletHolder.java:97)

>>>
>>>         at 
>>> org.mortbay.jetty.servlet.WebApplicationHandler$CachedChain.doFilter(WebApplicationHandler.java

>>> :830)
>>>         at 
>>> org.mortbay.jetty.servlet.JSR154Filter.doFilter(JSR154Filter.java:170)
>>>         at 
>>> org.mortbay.jetty.servlet.WebApplicationHandler$CachedChain.doFilter(WebApplicationHandler.java:821)

>>>
>>>         at org.mortbay.jetty.servlet.WebApplicationHandler.dispatch 
>>> (WebApplicationHandler.java:471)
>>>         at 
>>> org.apache.geronimo.jetty.JettyWebApplicationHandler.dispatch(JettyWebApplicationHandler.java:58)

>>>
>>>         at 
>>> org.mortbay.jetty.servlet.Dispatcher.dispatch(Dispatcher.java:283)
>>>         at 
>>> org.mortbay.jetty.servlet.Dispatcher.include(Dispatcher.java:163)
>>>         at 
>>> org.apache.jasper.runtime.JspRuntimeLibrary.include(JspRuntimeLibrary.java:966)

>>>
>>>         at jsp.tradehome_jsp._jspService(tradehome_jsp.java:151)
>>>         at 
>>> org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:97)
>>>         at javax.servlet.http.HttpServlet.service(HttpServlet.java:688)
>>>         at 
>>> org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java :428)
>>>         at 
>>> org.apache.geronimo.jetty.JettyServletHolder.handle(JettyServletHolder.java:97)

>>>
>>>         at 
>>> org.mortbay.jetty.servlet.WebApplicationHandler$CachedChain.doFilter(WebApplicationHandler.java:830)

>>>
>>>         at 
>>> org.mortbay.jetty.servlet.JSR154Filter.doFilter(JSR154Filter.java:170)
>>>         at 
>>> org.mortbay.jetty.servlet.WebApplicationHandler$CachedChain.doFilter(WebApplicationHandler.java:821)

>>>
>>>         at org.mortbay.jetty.servlet.WebApplicationHandler.dispatch 
>>> (WebApplicationHandler.java:471)
>>>         at 
>>> org.apache.geronimo.jetty.JettyWebApplicationHandler.dispatch(JettyWebApplicationHandler.java:58)

>>>
>>>         at 
>>> org.mortbay.jetty.servlet.Dispatcher.dispatch(Dispatcher.java:283)
>>>         at 
>>> org.mortbay.jetty.servlet.Dispatcher.include(Dispatcher.java:163)
>>>         at 
>>> org.apache.geronimo.samples.daytrader.web.TradeServletAction.requestDispatch(TradeServletAction.java:730)

>>>
>>>         at 
>>> org.apache.geronimo.samples.daytrader.web.TradeServletAction.doHome 
>>> (TradeServletAction.java:330)
>>>         at 
>>> org.apache.geronimo.samples.daytrader.web.TradeServletAction.doLogin(TradeServletAction.java:373)

>>>
>>>         at 
>>> org.apache.geronimo.samples.daytrader.web.TradeAppServlet.performTask 
>>> (TradeAppServlet.java:127)
>>>         at 
>>> org.apache.geronimo.samples.daytrader.web.TradeAppServlet.doGet(TradeAppServlet.java:78)

>>>
>>>         at javax.servlet.http.HttpServlet.service(HttpServlet.java:595)
>>>         at javax.servlet.http.HttpServlet.service (HttpServlet.java:688)
>>>         at 
>>> org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:428)
>>>         at 
>>> org.apache.geronimo.jetty.JettyServletHolder.handle(JettyServletHolder.java:97)

>>>
>>>         at 
>>> org.mortbay.jetty.servlet.WebApplicationHandler$CachedChain.doFilter 
>>> (WebApplicationHandler.java:830)
>>>         at 
>>> org.mortbay.jetty.servlet.JSR154Filter.doFilter(JSR154Filter.java:170)
>>>         at 
>>> org.mortbay.jetty.servlet.WebApplicationHandler$CachedChain.doFilter(WebApplicationHandler.java

>>> :821)
>>>         at 
>>> org.mortbay.jetty.servlet.WebApplicationHandler.dispatch(WebApplicationHandler.java:471)

>>>
>>>         at 
>>> org.apache.geronimo.jetty.JettyWebApplicationHandler.dispatch(JettyWebApplicationHandler.java:58)

>>>
>>>         at 
>>> org.mortbay.jetty.servlet.Dispatcher.dispatch(Dispatcher.java:283)
>>>         at 
>>> org.mortbay.jetty.servlet.Dispatcher.include(Dispatcher.java:163)
>>>         at 
>>> org.apache.geronimo.samples.daytrader.web.TradeScenarioServlet.performTask 
>>> (TradeScenarioServlet.java:202)
>>>         at 
>>> org.apache.geronimo.samples.daytrader.web.TradeScenarioServlet.doGet(TradeScenarioServlet.java:75)

>>>
>>>         at javax.servlet.http.HttpServlet.service(HttpServlet.java:595)
>>>         at javax.servlet.http.HttpServlet.service(HttpServlet.java:688)
>>>         at 
>>> org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:428)
>>>         at org.apache.geronimo.jetty.JettyServletHolder.handle 
>>> (JettyServletHolder.java:97)
>>>         at 
>>> org.mortbay.jetty.servlet.WebApplicationHandler$CachedChain.doFilter(WebApplicationHandler.java:830)

>>>
>>>         at 
>>> org.mortbay.jetty.servlet.JSR154Filter.doFilter(JSR154Filter.java :170)
>>>         at 
>>> org.mortbay.jetty.servlet.WebApplicationHandler$CachedChain.doFilter(WebApplicationHandler.java:821)

>>>
>>>         at 
>>> org.mortbay.jetty.servlet.WebApplicationHandler.dispatch(WebApplicationHandler.java:471)

>>>
>>>         at 
>>> org.apache.geronimo.jetty.JettyWebApplicationHandler.dispatch(JettyWebApplicationHandler.java:58)

>>>
>>>         at 
>>> org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:568)
>>>         at org.mortbay.http.HttpContext.handle (HttpContext.java:1530)
>>>         at 
>>> org.mortbay.jetty.servlet.WebApplicationContext.handle(WebApplicationContext.java:633)

>>>
>>>         at org.mortbay.http.HttpContext.handle(HttpContext.java:1482)
>>>         at org.mortbay.http.HttpServer.service (HttpServer.java:909)
>>>         at 
>>> org.mortbay.http.HttpConnection.service(HttpConnection.java:816)
>>>         at 
>>> org.mortbay.http.HttpConnection.handleNext(HttpConnection.java:982)
>>>         at org.mortbay.http.HttpConnection.handle 
>>> (HttpConnection.java:833)
>>>         at 
>>> org.mortbay.http.SocketListener.handleConnection(SocketListener.java:244) 
>>>
>>>         at 
>>> org.mortbay.util.ThreadedServer.handle(ThreadedServer.java:357)
>>>         at org.mortbay.util.ThreadPool$PoolThread.run 
>>> (ThreadPool.java:534)
>>>
>>> > Daytrader gets NullPointerException attempting to log in a user
>>> > ---------------------------------------------------------------
>>> >
>>> >          Key: GERONIMO-1674
>>> >          URL: http://issues.apache.org/jira/browse/GERONIMO-1674
>>> >      Project: Geronimo
>>> >         Type: Bug
>>> >     Security: public(Regular issues)
>>> >   Components: sample apps
>>> >     Versions: 1.x
>>> >  Environment: Windows XP
>>> >     Reporter: Joe Bohn
>>>
>>> >
>>> > Daytrader gets the following NPE exception when attempting to signon:
>>> > 13:47:05,510 ERROR [Log] Error: TradeDirect:login -- error logging 
>>> in user
>>> >         java.lang.NullPointerException
>>> > java.lang.NullPointerException
>>> >         at 
>>> org.apache.geronimo.samples.daytrader.util.FinancialUtils.computeGainPercent(FinancialUtils.java:43)

>>>
>>> >         at 
>>> org.apache.geronimo.samples.daytrader.MarketSummaryDataBean.<init>(MarketSummaryDataBean.java:54)

>>>
>>> >         at 
>>> org.apache.geronimo.samples.daytrader.direct.TradeDirect.getMarketSummary(TradeDirect.java:151)

>>>
>>> >         at 
>>> org.apache.geronimo.samples.daytrader.TradeAction.getMarketSummary(TradeAction.java:99)

>>>
>>> >         at 
>>> org.apache.jsp.marketSummary_jsp._jspService(org.apache.jsp.marketSummary_jsp:56)

>>>
>>> >         at 
>>> org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:97)
>>> >         at 
>>> javax.servlet.http.HttpServlet.service(HttpServlet.java:688)
>>> >         at 
>>> org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java 
>>> :332)
>>> >         at 
>>> org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:314)
>>> >         at 
>>> org.apache.jasper.servlet.JspServlet.service(JspServlet.java:264)
>>> >         at javax.servlet.http.HttpServlet.service 
>>> (HttpServlet.java:688)
>>> >         at 
>>> org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:428)
>>> >         at 
>>> org.apache.geronimo.jetty.JettyServletHolder.handle(JettyServletHolder.java:99)

>>>
>>> >         at 
>>> org.mortbay.jetty.servlet.WebApplicationHandler$CachedChain.doFilter(WebApplicationHandler.java:830)

>>>
>>> >         at 
>>> org.mortbay.jetty.servlet.JSR154Filter.doFilter(JSR154Filter.java:170)
>>> >         at 
>>> org.mortbay.jetty.servlet.WebApplicationHandler$CachedChain.doFilter 
>>> (WebApplicationHandler.java:821)
>>> >         at 
>>> org.mortbay.jetty.servlet.WebApplicationHandler.dispatch(WebApplicationHandler.java:471)

>>>
>>> >         at 
>>> org.mortbay.jetty.servlet.Dispatcher.dispatch(Dispatcher.java :283)
>>> >         at 
>>> org.mortbay.jetty.servlet.Dispatcher.include(Dispatcher.java:163)
>>> >         at 
>>> org.apache.jasper.runtime.JspRuntimeLibrary.include(JspRuntimeLibrary.java:966)

>>>
>>> >         at org.apache.jsp.tradehome_jsp._jspService 
>>> (org.apache.jsp.tradehome_jsp:282)
>>> >         at 
>>> org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:97)
>>> >         at 
>>> javax.servlet.http.HttpServlet.service(HttpServlet.java:688)
>>> >         at org.apache.jasper.servlet.JspServletWrapper.service 
>>> (JspServletWrapper.java:332)
>>> >         at 
>>> org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:314)
>>> >         at 
>>> org.apache.jasper.servlet.JspServlet.service(JspServlet.java:264)
>>> >         at 
>>> javax.servlet.http.HttpServlet.service(HttpServlet.java:688)
>>> >         at 
>>> org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:428)
>>> >         at org.apache.geronimo.jetty.JettyServletHolder.handle 
>>> (JettyServletHolder.java:99)
>>> >         at 
>>> org.mortbay.jetty.servlet.WebApplicationHandler$CachedChain.doFilter(WebApplicationHandler.java:830)

>>>
>>> >         at 
>>> org.mortbay.jetty.servlet.JSR154Filter.doFilter(JSR154Filter.java :170)
>>> >         at 
>>> org.mortbay.jetty.servlet.WebApplicationHandler$CachedChain.doFilter(WebApplicationHandler.java:821)

>>>
>>> >         at 
>>> org.mortbay.jetty.servlet.WebApplicationHandler.dispatch(WebApplicationHandler.java

>>> :471)
>>> >         at 
>>> org.mortbay.jetty.servlet.Dispatcher.dispatch(Dispatcher.java:283)
>>> >         at 
>>> org.mortbay.jetty.servlet.Dispatcher.include(Dispatcher.java:163)
>>> >         at 
>>> org.apache.geronimo.samples.daytrader.web.TradeServletAction.requestDispatch

>>> (TradeServletAction.java:730)
>>> >         at 
>>> org.apache.geronimo.samples.daytrader.web.TradeServletAction.doHome(TradeServletAction.java:319)

>>>
>>> >         at 
>>> org.apache.geronimo.samples.daytrader.web.TradeServletAction.doLogin 
>>> (TradeServletAction.java:357)
>>> >         at 
>>> org.apache.geronimo.samples.daytrader.web.TradeAppServlet.performTask(TradeAppServlet.java:132)

>>>
>>> >         at 
>>> org.apache.geronimo.samples.daytrader.web.TradeAppServlet.doPost 
>>> (TradeAppServlet.java:94)
>>> >         at 
>>> javax.servlet.http.HttpServlet.service(HttpServlet.java:615)
>>> >         at 
>>> javax.servlet.http.HttpServlet.service(HttpServlet.java:688)
>>> >         at org.mortbay.jetty.servlet.ServletHolder.handle 
>>> (ServletHolder.java:428)
>>> >         at 
>>> org.apache.geronimo.jetty.JettyServletHolder.handle(JettyServletHolder.java:99)

>>>
>>> >         at 
>>> org.mortbay.jetty.servlet.WebApplicationHandler$CachedChain.doFilter(WebApplicationHandler.java

>>> :830)
>>> >         at 
>>> org.apache.geronimo.samples.daytrader.web.OrdersAlertFilter.doFilter(OrdersAlertFilter.java:92)

>>>
>>> >         at 
>>> org.mortbay.jetty.servlet.WebApplicationHandler$CachedChain.doFilter(WebApplicationHandler.java

>>> :821)
>>> >         at 
>>> org.mortbay.jetty.servlet.JSR154Filter.doFilter(JSR154Filter.java:170)
>>> >         at 
>>> org.mortbay.jetty.servlet.WebApplicationHandler$CachedChain.doFilter(WebApplicationHandler.java:821)

>>>
>>> >         at 
>>> org.mortbay.jetty.servlet.WebApplicationHandler.dispatch(WebApplicationHandler.java:471)

>>>
>>> >         at 
>>> org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:568)
>>> >         at org.mortbay.http.HttpContext.handle (HttpContext.java:1530)
>>> >         at 
>>> org.mortbay.jetty.servlet.WebApplicationContext.handle(WebApplicationContext.java:633)

>>>
>>> >         at org.mortbay.http.HttpContext.handle(HttpContext.java:1482)
>>> >         at org.mortbay.http.HttpServer.service(HttpServer.java:909)
>>> >         at 
>>> org.mortbay.http.HttpConnection.service(HttpConnection.java:816)
>>> >         at 
>>> org.mortbay.http.HttpConnection.handleNext(HttpConnection.java :982)
>>> >         at 
>>> org.mortbay.http.HttpConnection.handle(HttpConnection.java:833)
>>> >         at 
>>> org.mortbay.http.SocketListener.handleConnection(SocketListener.java:244) 
>>>
>>> >         at org.mortbay.util.ThreadedServer.handle 
>>> (ThreadedServer.java:357)
>>> >         at 
>>> org.mortbay.util.ThreadPool$PoolThread.run(ThreadPool.java:534)
>>> > 13:47:05,560 WARN  [/daytrader] /daytrader/app:
>>> > java.lang.NullPointerException
>>> >         at 
>>> org.apache.jsp.marketSummary_jsp._jspService(org.apache.jsp.marketSummary_jsp:63)

>>>
>>> >         at 
>>> org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:97)
>>> >         at javax.servlet.http.HttpServlet.service 
>>> (HttpServlet.java:688)
>>> >         at 
>>> org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:332)

>>>
>>> >         at 
>>> org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:314)
>>> >         at 
>>> org.apache.jasper.servlet.JspServlet.service(JspServlet.java:264)
>>> >         at 
>>> javax.servlet.http.HttpServlet.service(HttpServlet.java:688)
>>> >         at 
>>> org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java :428)
>>> >         at 
>>> org.apache.geronimo.jetty.JettyServletHolder.handle(JettyServletHolder.java:99)

>>>
>>> >         at 
>>> org.mortbay.jetty.servlet.WebApplicationHandler$CachedChain.doFilter(WebApplicationHandler.java:830)

>>>
>>> >         at 
>>> org.mortbay.jetty.servlet.JSR154Filter.doFilter(JSR154Filter.java:170)
>>> >         at 
>>> org.mortbay.jetty.servlet.WebApplicationHandler$CachedChain.doFilter(WebApplicationHandler.java:821)

>>>
>>> >         at 
>>> org.mortbay.jetty.servlet.WebApplicationHandler.dispatch(WebApplicationHandler.java:471)

>>>
>>> >         at 
>>> org.mortbay.jetty.servlet.Dispatcher.dispatch(Dispatcher.java:283)
>>> >         at org.mortbay.jetty.servlet.Dispatcher.include 
>>> (Dispatcher.java:163)
>>> >         at 
>>> org.apache.jasper.runtime.JspRuntimeLibrary.include(JspRuntimeLibrary.java:966)

>>>
>>> >         at 
>>> org.apache.jsp.tradehome_jsp._jspService(org.apache.jsp.tradehome_jsp:282) 
>>>
>>> >         at 
>>> org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:97)
>>> >         at 
>>> javax.servlet.http.HttpServlet.service(HttpServlet.java:688)
>>> >         at 
>>> org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java 
>>> :332)
>>> >         at 
>>> org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:314)
>>> >         at 
>>> org.apache.jasper.servlet.JspServlet.service(JspServlet.java:264)
>>> >         at javax.servlet.http.HttpServlet.service 
>>> (HttpServlet.java:688)
>>> >         at 
>>> org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:428)
>>> >         at 
>>> org.apache.geronimo.jetty.JettyServletHolder.handle(JettyServletHolder.java:99)

>>>
>>> >         at 
>>> org.mortbay.jetty.servlet.WebApplicationHandler$CachedChain.doFilter(WebApplicationHandler.java:830)

>>>
>>> >         at 
>>> org.mortbay.jetty.servlet.JSR154Filter.doFilter(JSR154Filter.java:170)
>>> >         at 
>>> org.mortbay.jetty.servlet.WebApplicationHandler$CachedChain.doFilter 
>>> (WebApplicationHandler.java:821)
>>> >         at 
>>> org.mortbay.jetty.servlet.WebApplicationHandler.dispatch(WebApplicationHandler.java:471)

>>>
>>> >         at 
>>> org.mortbay.jetty.servlet.Dispatcher.dispatch(Dispatcher.java :283)
>>> >         at 
>>> org.mortbay.jetty.servlet.Dispatcher.include(Dispatcher.java:163)
>>> >         at 
>>> org.apache.geronimo.samples.daytrader.web.TradeServletAction.requestDispatch(TradeServletAction.java:730)

>>>
>>> >         at 
>>> org.apache.geronimo.samples.daytrader.web.TradeServletAction.doHome(TradeServletAction.java:319)

>>>
>>> >         at 
>>> org.apache.geronimo.samples.daytrader.web.TradeServletAction.doLogin(TradeServletAction.java:357)

>>>
>>> >         at 
>>> org.apache.geronimo.samples.daytrader.web.TradeAppServlet.performTask(TradeAppServlet.java:132)

>>>
>>> >         at 
>>> org.apache.geronimo.samples.daytrader.web.TradeAppServlet.doPost(TradeAppServlet.java:94)

>>>
>>> >         at 
>>> javax.servlet.http.HttpServlet.service(HttpServlet.java:615)
>>> >         at 
>>> javax.servlet.http.HttpServlet.service(HttpServlet.java:688)
>>> >         at 
>>> org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java :428)
>>> >         at 
>>> org.apache.geronimo.jetty.JettyServletHolder.handle(JettyServletHolder.java:99)

>>>
>>> >         at 
>>> org.mortbay.jetty.servlet.WebApplicationHandler$CachedChain.doFilter(WebApplicationHandler.java:830)

>>>
>>> >         at 
>>> org.apache.geronimo.samples.daytrader.web.OrdersAlertFilter.doFilter(OrdersAlertFilter.java:92)

>>>
>>> >         at 
>>> org.mortbay.jetty.servlet.WebApplicationHandler$CachedChain.doFilter(WebApplicationHandler.java

>>> :821)
>>> >         at 
>>> org.mortbay.jetty.servlet.JSR154Filter.doFilter(JSR154Filter.java:170)
>>> >         at 
>>> org.mortbay.jetty.servlet.WebApplicationHandler$CachedChain.doFilter(WebApplicationHandler.java:821)

>>>
>>> >         at 
>>> org.mortbay.jetty.servlet.WebApplicationHandler.dispatch(WebApplicationHandler.java:471)

>>>
>>> >         at 
>>> org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:568)
>>> >         at org.mortbay.http.HttpContext.handle (HttpContext.java:1530)
>>> >         at 
>>> org.mortbay.jetty.servlet.WebApplicationContext.handle(WebApplicationContext.java:633)

>>>
>>> >         at org.mortbay.http.HttpContext.handle(HttpContext.java:1482)
>>> >         at org.mortbay.http.HttpServer.service(HttpServer.java:909)
>>> >         at 
>>> org.mortbay.http.HttpConnection.service(HttpConnection.java:816)
>>> >         at 
>>> org.mortbay.http.HttpConnection.handleNext(HttpConnection.java :982)
>>> >         at 
>>> org.mortbay.http.HttpConnection.handle(HttpConnection.java:833)
>>> >         at 
>>> org.mortbay.http.SocketListener.handleConnection(SocketListener.java:244) 
>>>
>>> >         at org.mortbay.util.ThreadedServer.handle 
>>> (ThreadedServer.java:357)
>>> >         at 
>>> org.mortbay.util.ThreadPool$PoolThread.run(ThreadPool.java:534)
>>>
>>> -- 
>>> This message is automatically generated by JIRA.
>>> -
>>> If you think it was sent incorrectly contact one of the administrators:
>>>    http://issues.apache.org/jira/secure/Administrators.jspa
>>> -
>>> For more information on JIRA, see:
>>>    http://www.atlassian.com/software/jira
>>>
>>>
>>
>>
> 
> 
> 

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