Re: NullPointerException in Tomcat

[Jeanfrancois Arcand]

Bradley Ward wrote:

I see that it is in the netbeans level, but I was hoping someone in the
Tomcat world would know what is going on. None of my modules are in the call
stack; it is all within some internal Tomcat call.  Since there is none of
my code involved, it would appear that Tomcat is calling netbeans in some
invalid manner.

Does this mean in order to work with Tomcat I will have to diagnose Tomcat
source code AND Netbeans also?  I surely hope not...

The Netbeans team have added listener to Tomcat. The exception is occuring when Tomcat call those listeners. So you just have to read Netbeans code ;-)....Can you give more information on how you produce the error. I suspect a bug in your code....

-- Jeanfrancois

-----Original Message-----
From: Tim Funk [mailto:[EMAIL PROTECTED]]
Sent: Monday, December 02, 2002 11:54 AM
To: Tomcat Users List
Subject: Re: NullPointerException in Tomcat


Nope - the NPE is here (line 1 of stack trace):
org.netbeans.modules.web.monitor.server.MonitorFilter.recordServle
tData(MonitorFilter.java:979)

-Tim

Bradley Ward wrote:

I am getting a NullPointerException, and the stack trace says

it is down in

the bowels of Tomcat somewhere. Can anyone give me any ideas of

what might

be wrong?

Thanks

Here is the stack trace:

java.lang.NullPointerException
at

org.netbeans.modules.web.monitor.server.MonitorFilter.recordServle
tData(Moni

torFilter.java:979)
at

org.netbeans.modules.web.monitor.server.MonitorFilter.getDataBefor
e(MonitorF

ilter.java:545)
at

org.netbeans.modules.web.monitor.server.MonitorFilter.doFilter(Mon
itorFilter

.java:180)
at

org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(A
pplication

FilterChain.java:213)
at

org.apache.catalina.core.ApplicationFilterChain.doFilter(Applicati
onFilterCh

ain.java:193)
at

org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapp
erValve.ja

va:243)
at

org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipel
ine.java:5

66)
at

org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.
java:472)

at

org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:943)

at

org.apache.catalina.core.StandardContextValve.invoke(StandardConte
xtValve.ja

va:201)
at

org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipel
ine.java:5

66)
at

org.apache.catalina.valves.CertificatesValve.invoke(CertificatesVa
lve.java:2

46)
at

org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipel
ine.java:5

64)
at

org.netbeans.modules.web.monitor.catalina.MonitorValve.invoke(Moni
torValve.j

ava:142)
at

org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipel
ine.java:5

64)
at

org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.
java:472)

at

org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:943)

at

org.apache.catalina.core.StandardContext.invoke(StandardContext.java:2344)

at

org.apache.catalina.core.StandardHostValve.invoke(StandardHostValv
e.java:164

)
at

org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipel
ine.java:5

66)
at

org.apache.catalina.valves.ErrorDispatcherValve.invoke(ErrorDispat
cherValve.

java:170)
at

org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipel
ine.java:5

64)
at

org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValv
e.java:170

)
at

org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipel
ine.java:5

64)
at

org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:462)

at

org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipel
ine.java:5

64)
at

org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.
java:472)

at

org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:943)

at

org.apache.catalina.core.StandardEngineValve.invoke(StandardEngine
Valve.java

:163)
at

org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipel
ine.java:5

66)
at

org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.
java:472)

at

org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:943)

at

org.apache.catalina.connector.http.HttpProcessor.process(HttpProce
ssor.java:

1011)
at

org.apache.catalina.connector.http.HttpProcessor.run(HttpProcessor
.java:1106

)
at java.lang.Thread.run(Thread.java:536)

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