Hi
To load the profiler dll with the JVM you need to specify "-Xrunjavaperf" in the options field of the JavaVMInitArgs structure when you load the JVM.
(for call graph you need to specify "-Xrunjavaperf:cg")
I'll demonstrate it in C++ sample, but I guess it's the same for Delphi:
#include
#define USER_CLASSPATH "." /* where Prog.class is */
main() {
JNIEnv *env;
JavaVM *jvm;
JavaVMInitArgs vm_args;
jint res;
JavaVMOption options[2];
options[0].optionString = "-Xrunjavaperf:cg";
options[1].optionString = "-Djava.class.path=" USER_CLASSPATH;
vm_args.version = JNI_VERSION_1_2;
vm_args.options = options;
vm_args.nOptions = 2;
/* Create the Java VM */
res = JNI_CreateJavaVM(&jvm, (void**)&env, &vm_args);
if (res < 0) {
printf("Error loading VM!!
");
return 1;
}
jclass cls = env->FindClass("JNITest");
jmethodID mid = env->GetStaticMethodID(cls, "test", "()V");
env->CallStaticVoidMethod(cls, mid);
jvm->DestroyJavaVM();
return 0;
}
I tried it with sun JVM 1.4.2 and I had segmentation fault, but with BEA JRockit 8.1 sp1 and IBM 1.3.1 it worked fine.
I hope it answer your question.
