OOMEInThread

OOMEInThread.java

//jdk9+ java -XX:+UnlockDiagnosticVMOptions -XX:AbortVMOnException=java.lang.OutOfMemoryError OOMEInThread

// OutOfMemoryError is an unchecked exception. please note that even it keeps throwing,
// it only terminates a thread but not the java process. the following command shows that OnOutOfMemoryError
// fails to react OOME from java and get stuck forever.
//
public class OOMEInThread {
    public static void main(String[] args) {
        String msg = "a long long message.";
        // write your code here
        Runnable runnable = () -> {
            int cnt = Integer.MAX_VALUE / msg.length() + 1;
            //it will throw a OutOfMemoryError.
            msg.repeat(cnt);
        };

        Thread thread = new Thread(runnable);
        thread.start();
      
        while(true) {} // this simulates the main loop of event handling
    }
}