Examplecode for Geany issue #795 demonstrating the error in Geany 1.25 on Windows. The Japanese characters in line 79 are displayed as Null by Geany.

VP.java

package vp;

import org.jruby.javasupport.JavaEmbedUtils;
import org.jruby.runtime.builtin.IRubyObject;
import org.jruby.runtime.ThreadContext;
import org.jruby.internal.runtime.ThreadService;
import org.jruby.Ruby;
import org.jruby.RubyObject;
import org.jruby.RubyString;
import org.jruby.embed.ScriptingContainer;
import org.jruby.embed.LocalContextScope;
import java.io.FileWriter;
import java.io.IOException;
import java.util.*;
import java.lang.*;

import hostenv.HE;

import static java.lang.System.out;

public class VP {
  private ScriptingContainer container;
  // We can safely cache the Runtime object, iff the container is "singleton" or
  // "concurrent".
  private Ruby runtime;
  public VP() {
    container = new ScriptingContainer(LocalContextScope.CONCURRENT);
    runtime = container.getProvider().getRuntime();
  }
  public void run() {
    // Return a Ruby object and invoke some methods on it
    RubyObject asahi = (RubyObject)container.runScriptlet(org.jruby.embed.PathType.RELATIVE,"rbsrc/bridge.rb");
    // RubyObject asahi = (RubyObject)container.runScriptlet(org.jruby.embed.PathType.CLASSPATH,"bridge.rb");
    out.println("scriptlet executed");
    //
    // Invoking the methods using JavaEmbedUtils
    //
    try {
      //
      // The method say_something prints on stdout
      //
      JavaEmbedUtils.invokeMethod(runtime,asahi,"say_something",new Object[0],Class.forName("java.lang.Boolean"));
      //
      // The method dupstr returns twice the input string
      //
      Object[] str_arg = new Object[1];
      str_arg[0] = new String("Almrausch");
      String dup = (String)JavaEmbedUtils.invokeMethod(runtime,asahi,"dupstr",str_arg,Class.forName("java.lang.String"));
      out.println("dupstr returns "+dup);
    } catch(Exception e) {
      out.println("Exception when using JavaEmbedUtils.invokeMethod");
       e.printStackTrace();
    }
    //
    // Invoking the same methods using IRubyObject.callMethod()
    //
    ThreadContext currentContext = asahi.getRuntime().getCurrentContext();
    // alternative way to get the thread context:
    // ThreadContext currentContext = runtime.getThreadService().getCurrentContext();
    asahi.callMethod(currentContext,"say_something");
    String dup0 = asahi.callMethod(currentContext,"dupstr",JavaEmbedUtils.javaToRuby(runtime,"Dirndlrock")).convertToString().asJavaString();
    out.println("dupstr returns now "+dup0);
    //
    // Invoking the same methods using ScriptingContainer.callMethod()
    //
    container.callMethod(asahi,"say_something",Boolean.class);
    Object dupstr_args[] = new Object[1];
    dupstr_args[0] = "Lederhosen";
    String dup1 = container.callMethod(asahi,"dupstr",dupstr_args,String.class).toString();
    out.println("dupstr returns finally "+dup1);

    // Access the global variable created by bridge.rb. Also demonstrates
    // handling of Unicode characters.
    RubyObject kirin = (RubyObject)container.get("$kirin");
    String ucstr_result = container.callMethod(kirin,"ucstr").toString();
    try {
      FileWriter fw = new FileWriter("ucout.txt");
      fw.write(ucstr_result);
      fw.write("さん、今日は\n");
      fw.close();
    } catch(IOException e) {
      out.println("Can not create or write file for storing Kirin output!");
      out.println(e.getMessage());
    }

    // Fetching a Java String, which was created on the Ruby side
    String jstring = (String)(container.callMethod(asahi,"aJavaString"));
    out.println(jstring);

    // HE is a Java class. We instantiate two HE objects, one from
    // within Java, and one in Ruby
    HE jHE = new HE(47);
    HE rHE = (HE)(container.callMethod(asahi,"aHEobject",11));
    out.println(jHE.get_i().toString() + rHE.get_i().toString());

    out.println("container var map:");
    Map m = container.getVarMap();
    Set<String> keys = container.getVarMap().keySet();
    for (String key : keys) {
        out.println(key + ", " + m.get(key));
    }
    out.println("end run");
  }
}