[news.eclipse.tptp] Re: unknown classes and methods when profiling with

[khilan@xxxxxxxxxxxx (Khilan)]

Hi Eugene,

Thanks for the reply. I modified the program to accept a keystroke before 
calling println():

public static void main(String[] args) {
   System.in.read();
   System.out.println();
}

I was hoping this would give the profiler some time before it had to 
collect the data for println(), however I'm still getting unknown classes 
and methods. This seems to be the story with eclipse 3.5 and tptp 4.6.

The funny thing is that I tried using Eclipse 3.4 with TPTP 4.5.2.1 and 
both java 1.5 and 1.6 and the profiling works in this case (java.io 
classes and their methods are there).

Seems like either a problem with eclipse 3.5 or tptp 4.6.

Khilan

Eugene Chan wrote:

> Hi Khilan,

> Even tho you have specify your profiling session to collect all data, there 
> are certain classes in the JRE being filtered out by default with the 
> limitation of the profiler. Unknown methods may result with method defintion 
> or method entry events being missed by the profiler before the profiler 
> starts collecting.

> Eugene


> "Khilan" <khilan@xxxxxxxxxxxx> wrote in message 
> news:085f5c89b9bc18a601999426ba607a0c$1@xxxxxxxxxxxxxxxxxx
> > Dear all,
> >
> > I'm a newbie to TPTP and have run into a problem with unknown classes and 
> > methods. I'm using Eclipse 3.5 with Java 6 and TPTP 4.6 on Ubuntu Jaunty 
> > 9.04 to profile a simple application:
> >
> > public static void main(String[] args) {
> >    System.out.println();
> > }
> >
> > I profile this as a Java Application and am performing an Execution Time 
> > Analysis with "Collect method CPU time information" unchecked and "Show 
> > execution flow graphical details" checked. Furthermore, I have defined a 
> > filter "No Filter" which contains the single rule "Classes: *, Methods: *, 
> > Rule: INCLUDE".
> >
> > In the profiler output, the following packages appear:
> > default
> > java.net
> > java.nio
> > java.nio.charset
> > java.util
> > sun.jkernel
> > sun.misc
> > sun.net.www
> > sun.net.www.protocol.file
> > sun.security.provider
> > sun.security.util
> >
> > This gives me confidence that the filter is working. However, the java.io 
> > package doesn't appear and instead there are a number of "unknown" classes 
> > listed in the default package. Also, when looking at the call tree, there 
> > are "unknown" methods too, which I'm guessing belong to these unknown 
> > classes.
> >
> > I've also tried using Java 5 (with Eclipse 3.5 and TPTP 4.6) but I still 
> > get the same problem.
> >
> > Any help would be appreciated,
> >
> > Thanks,
> > Khilan