Re: Calling Wrong Method

["Gregory R. Warnes" <warnes at biostat dot washington dot edu>]

Hmmm.  I just recompiled and the error vanished.  My code now runs
perfectly, and is sooo much faster than any of the JIT's.

-Greg

On Fri, 19 May 2000, Gregory R. Warnes wrote:

  GRW>> 
  GRW>> OK, I hardcoded all of the stull I was using gnuopt to set and ran the
  GRW>> program under gdb.  Now I have something *really*wierd* happening....
  GRW>> 
  GRW>> Method calls are being resolved to the WRONG METHOD !!!
  GRW>> 
  GRW>> When the code reaches
  GRW>> org.omegahat.Simulation.MCMC.Dissertation.Paper1.OneModeTarget.trueCov,
  GRW>> which is
  GRW>> 
  GRW>> public double[][] trueCov()
  GRW>> {
  GRW>>     return ((MVNormal) target).getCovariance();
  GRW>> }
  GRW>> 
  GRW>> The call ends up in:
  GRW>> 
  GRW>> org.omegahat.Probability.Distributions.MVNormal.PDF (this=@81fd580,
  GRW>> x=@8223420, mean=@82208c0, cov=@c)
  GRW>> 
  GRW>> public double PDF( double[] x, double[] mean, double[][] cov )
  GRW>> {
  GRW>>     checkConformity( x, mean, cov );
  GRW>>     
  GRW>>     return dnorm(x,mean,cov);
  GRW>> }
  GRW>> 
  GRW>> 
  GRW>> This is the WRONG METHOD!  Correct class, wrong name, wrong arguments.
  GRW>> 
  GRW>> BTW, I get the same method call problem when I'm not running under gdb.  
  GRW>> I can tell because checkConformity() checks its arguments, which are trash
  GRW>> and throws a RuntimeException resulting in a core dump and stack trace.
  GRW>> 
  GRW>> 
  GRW>> My only guess is that I'm overloading something in the compiler because
  GRW>> I'm doing a single massive compile command, passing all of the source
  GRW>> files to gcj at once.
  GRW>> 
  GRW>> I'm working on getting my stuff packed up so you can have the actual code
  GRW>> to work on....
  GRW>> 
  GRW>> -Greg
  GRW>> 
  GRW>> 
  GRW>> ------------ GDB Backtrace
  GRW>> 
  GRW>> #0  org.omegahat.Probability.Distributions.MVNormal.PDF (this=@81fd580,
  GRW>> x=@8223420, mean=@82208c0, cov=@c) at
  GRW>> Probability/Distributions/MVNormal.java:394
  GRW>> #1  0x807852d in
  GRW>> org.omegahat.Simulation.MCMC.Dissertation.Paper1.OneModeTarget.trueCov
  GRW>> () at
  GRW>> org/omegahat/Simulation/MCMC/Dissertation/Paper1/OneModeTarget.java:46
  GRW>> #2  0x8080442 in
  GRW>> org.omegahat.Simulation.MCMC.Dissertation.Paper1.Simulate.setupTarget
  GRW>> () at org/omegahat/Simulation/MCMC/Dissertation/Paper1/Simulate.java:499
  GRW>> #3  0x80789f9 in
  GRW>> org.omegahat.Simulation.MCMC.Dissertation.Paper1.Simulate.Simulate () at
  GRW>> org/omegahat/Simulation/MCMC/Dissertation/Paper1/Simulate.java:974
  GRW>> #4  0x80799a6 in
  GRW>> org.omegahat.Simulation.MCMC.Dissertation.Paper1.Simulate.main () at
  GRW>> org/omegahat/Simulation/MCMC/Dissertation/Paper1/Simulate.java:1040
  GRW>> #5  0x4014dec5 in gnu::gcj::runtime::FirstThread::run (this=@81a5ea0) at
  GRW>> ../../../libgcj/libjava/gnu/gcj/runtime/natFirstThread.cc:146
  GRW>> #6  0x40158a2b in java::lang::Thread::run_ (obj=@81a5ea0) at
  GRW>> ../../../libgcj/libjava/java/lang/natThread.cc:263
  GRW>> #7  0x40168e7e in _Jv_ThreadStart (thread=@81a5ea0, meth=0x40158860
  GRW>> <java::lang::Thread::run_(java::lang::Object *) at
  GRW>> ../../../libgcj/libjava/java/lang/natThread.cc:205>) at
  GRW>> ../../../libgcj/libjava/no-threads.cc:28
  GRW>> #8  0x40158b60 in java::lang::Thread::start (this=@81a5ea0) at
  GRW>> ../../../libgcj/libjava/java/lang/natThread.cc:294
  GRW>> #9  0x400afd8c in JvRunMain (klass=@814cc80, argc=1, argv=@bffff6e4) at
  GRW>> ../../../libgcj/libjava/prims.cc:867
  GRW>> #10 0x812d9cd in main (argc=1, argv=@bffff6e4) at /tmp/ccveHkVGmain.i:11
  GRW>> 
  GRW>> 
  GRW>> ------------- Runtime Exception
  GRW>> 
  GRW>> hydra:~/sandbox> ./Simulate 
  GRW>> Started at: Fri May 19 14:14:50 GMT 2000
  GRW>> java.lang.RuntimeException: Object passed to PDF does not conform to
  GRW>> length of mean vector.
  GRW>>    at 0x400fccf4: java::lang::Throwable::Throwable(java::lang::String
  GRW>> *) (/usr/lib/libgcj.so.1)
  GRW>>    at 0x400f0561: java::lang::Exception::Exception(java::lang::String
  GRW>> *) (/usr/lib/libgcj.so.1)
  GRW>>    at
  GRW>> 0x400f5089: java::lang::RuntimeException::RuntimeException(java::lang::String
  GRW>> *) (/usr/lib/libgcj.so.1)
  GRW>>    at
  GRW>> 0x0805f3f5: org::omegahat::Probability::Distributions::MVNormal::checkConformity(JArray<double>
  GRW>> *, JArray<double> *, JArray<JArray<double> *>
  GRW>> *) (/home/warnes/sandbox/Probability/Distributions/MVNormal.java:379)
  GRW>>    at
  GRW>> 0x0805f4be: org::omegahat::Probability::Distributions::MVNormal::PDF(JArray<double>
  GRW>> *, JArray<double> *, JArray<JArray<double> *>
  GRW>> *) (/home/warnes/sandbox/Probability/Distributions/MVNormal.java:394)
  GRW>>    at
  GRW>> 0x0807852d: org::omegahat::Simulation::MCMC::Dissertation::Paper1::OneModeTarget::trueCov(void) (/home/warnes/sandbox/org/omegahat/Simulation/MCMC/Dissertation/Paper1/OneModeTarget.java:46)
  GRW>>    at
  GRW>> 0x08080442: org::omegahat::Simulation::MCMC::Dissertation::Paper1::Simulate::setupTarget(void) (/home/warnes/sandbox/org/omegahat/Simulation/MCMC/Dissertation/Paper1/Simulate.java:499)
  GRW>>    at
  GRW>> 0x080789f9: org::omegahat::Simulation::MCMC::Dissertation::Paper1::Simulate::Simulate(JArray<java::lang::String
  GRW>> *>
  GRW>> *) (/home/warnes/sandbox/org/omegahat/Simulation/MCMC/Dissertation/Paper1/Simulate.java:974)
  GRW>>    at
  GRW>> 0x080799a6: org::omegahat::Simulation::MCMC::Dissertation::Paper1::Simulate::main(JArray<java::lang::String
  GRW>> *>
  GRW>> *) (/home/warnes/sandbox/org/omegahat/Simulation/MCMC/Dissertation/Paper1/Simulate.java:1040)
  GRW>>    at
  GRW>> 0x4014dec5: gnu::gcj::runtime::FirstThread::run(void) (/usr/lib/libgcj.so.1)
  GRW>>    at 0x40158a2b: java::lang::Thread::run_(java::lang::Object
  GRW>> *) (/usr/lib/libgcj.so.1)
  GRW>>    at 0x40168e7e: _Jv_ThreadStart(java::lang::Thread *, int *, void
  GRW>> (*)(java::lang::Thread *)) (/usr/lib/libgcj.so.1)
  GRW>>    at 0x40158b60: java::lang::Thread::start(void) (/usr/lib/libgcj.so.1)
  GRW>>    at 0x400afd8c: JvRunMain (/usr/lib/libgcj.so.1)
  GRW>>    at 0x0812d9cd: main (/tmp/ccveHkVGmain.i:11)
  GRW>>    at 0x4028ba42: __libc_start_main (/lib/libc.so.6)
  GRW>>    at 0x0804c501: _start (??:0)
  GRW>> 
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