JRI return code 10

Question

I'm new to R and was attempting to call a simple rJava test program from java. I have done the necessary path settings and when I am attempting to create a Rengine instance the code is failing. The issue seems to be with C [R.dll+0x26036]. However, I am new to this and not being able to figure out the issue. Any help will be welcome.

My code :

import org.rosuda.JRI.REXP;
import org.rosuda.JRI.Rengine;
public class First_R {
public static void main (String args []) {

    System.out.println("Start");
    Rengine.DEBUG = 5;

    System.out.println("Starting Rengine..");
    System.out.println("R_HOME =" + System.getenv("R_HOME"));
    final Rengine re = new Rengine ();
    // Check if the session is working.
    if (!re.waitForR()) {
        return;
    }
    re.assign("x", new double[] {1.5, 2.5, 3.5});
    REXP result = re.eval("(sum(x))");
    System.out.println(result.asDouble());
    re.end();
}

}

The output:

Start Starting Rengine.. R_HOME =D:\Program Files\R\R-3.2.0\bin\

A fatal error has been detected by the Java Runtime Environment:

EXCEPTION_ACCESS_VIOLATION (0xc0000005) at pc=0x000000006c726036, pid=4588, tid=1872

JRE version: Java(TM) SE Runtime Environment (8.0_45-b14) (build 1.8.0_45-b14) Java VM: Java HotSpot(TM) 64-Bit Server VM (25.45-b02 mixed mode windows-amd64 compressed oops) Problematic frame: C [R.dll+0x26036]

Failed to write core dump. Minidumps are not enabled by default on client versions of Windows

An error report file with more information is saved as:

Answer 1

In Your environment setup, please change R_HOME to D:\Program Files\R\R-3.2.0 and not R_HOME =D:\Program Files\R\R-3.2.0\bin\, please let me know if that does the job :), notice that the your code works for me (using nicola's advice as well)

package rundavid;

import org.rosuda.JRI.REXP;
import org.rosuda.JRI.Rengine;



public class RunDavid {


public static void main (String args []) {



    System.out.println("R_HOME =" + System.getenv("R_HOME"));


    Rengine re = new Rengine (new String [] {"--vanilla"}, false, null);
    // Check if the session is working.
    if (!re.waitForR()) {
        return;
    }
    re.assign("x", new double[] {1.5, 2.5, 3.5});
    REXP result = re.eval("(sum(x))");
    System.out.println(result.asDouble());
    re.end();
}}

the output:

run:
R_HOME =C:\Program Files\R\R-2.15.3
7.5
BUILD SUCCESSFUL (total time: 0 seconds)

Also you need to set up D:\Program Files\R\R-3.2.0\bin\x64;D:\Misc\RLib\rJava\jri\x64 This you need to set up in vm options, and not as environment variable. this is how its done in Netbeans (that what im using):

1. Right click on the project, then click on properties
2. Then choose the run
3. Insert the VM options as following:

Answer 2

You have to initialize properly your Rengine. Try this:

Rengine re = new Rengine (new String [] {"--vanilla"}, false, null);

when you create the engine, and everything should work. The constructor without arguments "create(s) a new engine by hooking into an existing, initialized R instance which is calling this constructor" (from the doc). This causes the error, since there is not an existing Rengine running (I guess).