willow-deployer/src/main/java/com/nitorcreations/willow/deployer/statistics/AbstractJMXStatisticsSender.java
protected MBeanServerConnection getMBeanServerConnection(String childName) {
    MBeanConnectionInfo connInfo = connections.get(childName);
    if (connInfo == null) {
      connInfo = new MBeanConnectionInfo();
      connections.put(childName, connInfo);
    }
    long childPid = main.getFirstJavaChildPid(childName);
    if (childPid > 0 && childPid != connInfo.childPid && connInfo.connector != null) {
      try {
        connInfo.connector.close();
      } catch (IOException e) {
        logger.log(Level.FINE, "Failed to close JMXConnector", e);
      }
      connInfo.connector = null;
      connInfo.server = null;
    }
    if (childPid > 0) {
      try {
        if (connInfo.connector == null) {
          connInfo.connector = DeployerControl.getJMXConnector(childPid);
        }
        if (connInfo.connector != null && connInfo.server == null) {
          connInfo.server = connInfo.connector.getMBeanServerConnection();
          connInfo.childPid = childPid;
        }
      } catch (IOException e) {
        logger.log(Level.FINE, "Failed to get JMX connection", e);
        try {
          connInfo.connector.close();
        } catch (Exception e2) {
          logger.log(Level.FINE, "Failed to close JMXConnector", e2);
        }
        connInfo.connector = null;
        connInfo.server = null;
      }
    }
    return connInfo.server;
  }
protected MBeanServerConnection getMBeanServerConnection(String childName) {
    MBeanConnectionInfo connInfo = connections.get(childName);
    if (connInfo == null) {
      connInfo = new MBeanConnectionInfo();
      connections.put(childName, connInfo);
    }
    long childPid = main.getFirstJavaChildPid(childName);
    if (childPid > 0 && childPid != connInfo.childPid && connInfo.connector != null) {
      try {
        connInfo.connector.close();
      } catch (IOException e) {
        logger.log(Level.FINE, "Failed to close JMXConnector", e);
      }
      connInfo.connector = null;
      connInfo.server = null;
    }
    if (childPid > 0) {
      try {
        if (connInfo.connector == null) {
          connInfo.connector = DeployerControl.getJMXConnector(childPid);
        }
        if (connInfo.connector != null && connInfo.server == null) {
          connInfo.server = connInfo.connector.getMBeanServerConnection();
          connInfo.childPid = childPid;
        }
      } catch (IOException e) {
        logger.log(Level.FINE, "Failed to get JMX connection", e);
        try {
          connInfo.connector.close();
        } catch (Exception e2) {
          logger.log(Level.FINE, "Failed to close JMXConnector", e2);
        }
        connInfo.connector = null;
        connInfo.server = null;
      }
    }
    return connInfo.server;
  }
Return the MBean server connection to the child process.

@return MBean server connection.