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JNI Invocation API example

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I'm trying to write a simple C++ example to call into the JNI so that I can call Java from C/++. I know this may sound off topic, but it's very pertinent to Java. I'm not that familiar with the JNI API, and I'm still reading through the docs, but I was hoping that someone would be kind enough to give me a working example sufficient to call System.out.println("hello world"). 

Here's my current source (I'm pretty sure that if you just throw this into a int main(void) it will work):

  JavaVM *jvm;       /* denotes a Java VM */
  JNIEnv *env;       /* pointer to native method interface */
  JavaVMInitArgs vm_args; /* JDK/JRE 6 VM initialization arguments */
  JavaVMOption* options = new JavaVMOption[1];
  options[0].optionString = const_cast<char*>( "-Djava.class.path=/usr/lib/java");
  vm_args.version = JNI_VERSION_1_6;
  vm_args.nOptions = 1;
  vm_args.options = options;
  vm_args.ignoreUnrecognized = false;
  /* load and initialize a Java VM, return a JNI interface
   * pointer in env */
  if (JNI_CreateJavaVM(&jvm,(void **) &env, &vm_args)!=JNI_OK)
    cout << "JNI not JNI_OK" << endl;
  if (jvm==NULL)
    cout << "jvm is null!" << endl;
  if (env==NULL)
    cout << "env is null!" << endl;
  delete options;
  cout.flush();
  /* invoke the Main.test method using the JNI */
  jclass cls = env->FindClass("java/io/PrintStream");
  if (cls==NULL)
    cout << "class is null" << endl;
  cout.flush();
  jmethodID mid = env->GetMethodID(cls, "println", "(I)V");
  if (mid==NULL)
    cout << "method is null" << endl;
  else
    env->CallStaticVoidMethod(cls, mid, "hello world");
  /* We are done. */
  //jvm->DestroyJavaVM();


Here are the questions that I have:

What method invocation is appropriate for the println method? I'm certain that it isn't CallStaticVoidMethod, because that currently gives me a segfault. 

How do I determine what that "(I)V" argument is to GetMethodID? Is that some kind of signature? What does "(I)" and "V" Stand for?

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JNI Invocation API example Kenneth Miller <kennethadammiller@gmail.com> - 2013-09-25 10:23 -0700
  Re: JNI Invocation API example Mark <i@dontgetlotsofspamanymore.invalid> - 2013-09-27 16:44 +0100
  Re: JNI Invocation API example "Chris Uppal" <chris.uppal@metagnostic.REMOVE-THIS.org> - 2013-09-28 14:40 +0100
    Re: JNI Invocation API example Kenneth Miller <kennethadammiller@gmail.com> - 2013-09-28 16:22 -0700
      Re: JNI Invocation API example Lew <lewbloch@gmail.com> - 2013-09-30 11:20 -0700
  Re: JNI Invocation API example Roedy Green <see_website@mindprod.com.invalid> - 2013-10-01 21:48 -0700

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