----- Original Message -----
From: "Jim Urban" <[EMAIL PROTECTED]>
To: "Tomcat Users List" <[EMAIL PROTECTED]>
Sent: Tuesday, December 04, 2001 4:07 PM
Subject: RE: HTTP method POST is not supported by this URL
> > So, doPost calls itself in an endless loop, sending the servlet into
> oblivion...
> Or until a java.lang.StackOverflowError exception is thrown. :)
>
> Seriously, if a servlet gets a StackOverflowError does that impact Tomcat?
> That is, can Tomcat run out of stack space if a loop in a servlet gets out
> of control.
>
> Jim
>[...]
I am testing it :-)
* the following is my code:
public class Test0 extends HttpServlet {
public void service(HttpServletRequest req, HttpServletResponse res)
throws ServletException, IOException {
res.setContentType("text/html");
PrintWriter out = res.getWriter();
m();
out.println("hahahahaha");
out.close(); out=null;
}
private void m(){
m();
}
}
* the following is the result:
- when I first invoke Test0, I got the following output in my browser
- then I can invoke MyServlet class(es)
- but if I invoke Test0 _again_, the "DOS prompt" of TC4.0 closed by
itself !! (I didn't
use "shutdown" commond to close it)
* output:
A Servlet Exception Has Occurred
Exception Report:
javax.servlet.ServletException: Invoker service() exception
at org.apache.catalina.servlets.InvokerServlet.serveRequest(Unknown Source)
at org.apache.catalina.servlets.InvokerServlet.doGet(Unknown Source)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:740)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Unknown
Source)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(Unknown Source)
at org.apache.catalina.core.StandardWrapperValve.invoke(Unknown Source)
at org.apache.catalina.core.StandardPipeline.invokeNext(Unknown Source)
at org.apache.catalina.core.StandardPipeline.invoke(Unknown Source)
at org.apache.catalina.core.ContainerBase.invoke(Unknown Source)
at org.apache.catalina.core.StandardContextValve.invoke(Unknown Source)
at org.apache.catalina.core.StandardPipeline.invokeNext(Unknown Source)
at org.apache.catalina.core.StandardPipeline.invoke(Unknown Source)
at org.apache.catalina.core.ContainerBase.invoke(Unknown Source)
at org.apache.catalina.core.StandardContext.invoke(Unknown Source)
at org.apache.catalina.core.StandardHostValve.invoke(Unknown Source)
at org.apache.catalina.core.StandardPipeline.invokeNext(Unknown Source)
at org.apache.catalina.valves.AccessLogValve.invoke(Unknown Source)
at org.apache.catalina.core.StandardPipeline.invokeNext(Unknown Source)
at org.apache.catalina.core.StandardPipeline.invoke(Unknown Source)
at org.apache.catalina.core.ContainerBase.invoke(Unknown Source)
at org.apache.catalina.core.StandardEngineValve.invoke(Unknown Source)
at org.apache.catalina.core.StandardPipeline.invokeNext(Unknown Source)
at org.apache.catalina.core.StandardPipeline.invoke(Unknown Source)
at org.apache.catalina.core.ContainerBase.invoke(Unknown Source)
at org.apache.catalina.connector.http.HttpProcessor.process(Unknown Source)
at org.apache.catalina.connector.http.HttpProcessor.run(Unknown Source)
at java.lang.Thread.run(Thread.java:484)
Root Cause:
java.lang.StackOverflowError
at Test0.m(Test0.java:23)
at Test0.m(Test0.java:23)
at Test0.m(Test0.java:23)
at Test0.m(Test0.java:23)
at Test0.m(Test0.java:23)
...
(many...)
Bo
Dec.04, 2001
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