Not sure if this the right place, but I can't seem to subscribe to the rJava mailing list. Sorry for the noise.
I have a jar file in the CLASSPATH variable. On running .jinit and checking .jclassPath, i can see the jar file containing the class. Yet when trying to instantaite the class, i get a class not found error. Now If if, create my own vm (see below), and then run .jinit (which will use my vm), i can find the class in question (org.apache.hadoop.io.longwritable) Is there some classloader problem in rJava? ==code== void create_vm(const char *clap) { char* classpath = (char*) calloc(18+strlen(clap)+1, sizeof(char)); sprintf(classpath,"-Djava.class.path=%s",clap); JavaVMInitArgs args; JavaVMOption options[2]; args.version = JNI_VERSION_1_4; args.nOptions = 2; options[0].optionString = classpath; options[1].optionString = "-Xrs"; args.options = options; args.ignoreUnrecognized = JNI_TRUE; JavaVM *jvms[32]; jsize vms=0; int r=0; r=JNI_GetCreatedJavaVMs(jvms, 32, &vms); if (r) { error("JNI_GetCreatedJavaVMs returned %d\n", r); } else { if (vms>0) { int i=0; while (i<vms) { if (jvms[i]) { if (!(*jvms[i])->AttachCurrentThread(jvms[i], (void**)&jenv, NULL)) { jvm=jvms[i]; break; } } i++; } if (i==vms) error("Failed to attach to any existing JVM."); }else { JNI_CreateJavaVM(&jvm, (void **)&jenv, &args); } } } Saptarshi Guha [[alternative HTML version deleted]] ______________________________________________ R-devel@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-devel