/**
 * Immediately exits the process with the ordinal value of the provided {@link ProcessExit}.
 */
@SuppressWarnings("DM_EXIT")
public static void exit(Code code) {
  String message = String.format(
      "Process exiting immediately with code: %s[%d]",
      code,
      code.getValue());
  System.err.println(message);
  System.out.println(message); // SUPPRESS CHECKSTYLE RegexpSinglelineJava
  System.err.println("Printing final thread state...");
  new ThreadDump(ManagementFactory.getThreadMXBean()).dump(System.err);
  System.exit(code.getValue());
}
 

public ThreadDumpHandler() {
    try {
        // some PaaS like Google App Engine blacklist "java.lang.management" package
        threadDump = new ThreadDump(ManagementFactory.getThreadMXBean());
    } catch (NoClassDefFoundError e) {
        log.warn("Thread dump isn't available", e);
    }
}
 

/**
 * Constructs an instance.
 */
public ThreadsHandler() {
    this.threadDump = new ThreadDump(getThreadMXBean());
}