How to catch JVM crash

Problem:
 A scheduled task will invoke 3rd party library and sometimes JVM crashes and it cannot be recovered.
Solution:
 Use ProcessBuilder to invoke the possible-crash application. (It works on JRE7, not on JRE6)

public

class CrashExample {

@SuppressWarnings("restriction")

public static void main(String[] args) {

System.

out.println("Hello, I will crash!");

new sun.dc.pr.PathDasher(null);

}

}

import

java.io.IOException;

import

java.util.concurrent.Executors;

import

java.util.concurrent.TimeUnit;

　

public

class FixedTest {

public static void main(String[] args) {

Executors.newScheduledThreadPool(10).scheduleAtFixedRate(

new Runnable() {

volatile int cnt = 0;

volatile boolean is_normal;

@Override

public void run() {

cnt++;

if(is_normal||cnt<5){

System.

out.println("Running..."+cnt);

}

else{

String separator = System.getProperty(

"file.separator");

String classpath = System.getProperty(

"java.class.path");

String path = System.getProperty(

"java.home")

+ separator +

"bin" + separator + "java";

System.

out.println("path="+path);

ProcessBuilder processBuilder =

new ProcessBuilder(path, "-cp",

classpath,

CrashExample.

class.getName());

// processBuilder.inheritIO();

try {

Process process = processBuilder.start();

process.waitFor();

}

catch (IOException e) {

e.printStackTrace();

}

catch (InterruptedException e) {

e.printStackTrace();

}

System.

out.println("Running "+cnt);

is_normal = true;

}

}

}, 100, 1000, TimeUnit.

MILLISECONDS);

}

}