Programatically gathering a thread dump

This is just a method you could add to your software if you wish to trigger a thread dump in a controlled fashion.

import java.sql.*;
import java.lang.management.*;

public class DebugLocks {
  public static String dumpThreads() {
    final StringBuilder dump = new StringBuilder();
    final ThreadMXBean threadMXBean = ManagementFactory.getThreadMXBean();
    final ThreadInfo[] threadInfos = threadMXBean.getThreadInfo(threadMXBean.getAllThreadIds(), 100);
    for (ThreadInfo threadInfo : threadInfos) {
      dump.append('"');
      dump.append(threadInfo.getThreadName() + "(" + threadInfo.getThreadId() + ")");
      dump.append("\" ");
      final Thread.State state = threadInfo.getThreadState();
      dump.append("\n   java.lang.Thread.State: ");
      dump.append(state);
      final StackTraceElement[] stackTraceElements = threadInfo.getStackTrace();
      for (final StackTraceElement stackTraceElement : stackTraceElements) {
        dump.append("\n        at ");
        dump.append(stackTraceElement);
      }
      dump.append("\n\n");
    }
    return dump.toString();
  }
  public static void main (String args[]) throws Exception {
    System.out.println(dumpThreads());
  }
}