java/org/apache/catalina/manager/StatusManagerServlet.java - tomcat - Git at Google

 /*
  * Licensed to the Apache Software Foundation (ASF) under one or more
  * contributor license agreements.  See the NOTICE file distributed with
  * this work for additional information regarding copyright ownership.
  * The ASF licenses this file to You under the Apache License, Version 2.0
  * (the "License"); you may not use this file except in compliance with
  * the License.  You may obtain a copy of the License at
  *
  *      http://www.apache.org/licenses/LICENSE-2.0
  *
  * Unless required by applicable law or agreed to in writing, software
  * distributed under the License is distributed on an "AS IS" BASIS,
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
 package org.apache.catalina.manager;

 import java.io.IOException;
 import java.io.PrintWriter;
 import java.io.Serial;
 import java.net.InetAddress;
 import java.net.UnknownHostException;
 import java.util.ArrayList;
 import java.util.Collections;
 import java.util.Iterator;
 import java.util.List;
 import java.util.Set;

 import javax.management.MBeanServer;
 import javax.management.MBeanServerNotification;
 import javax.management.Notification;
 import javax.management.NotificationListener;
 import javax.management.ObjectInstance;
 import javax.management.ObjectName;

 import jakarta.servlet.ServletException;
 import jakarta.servlet.http.HttpServlet;
 import jakarta.servlet.http.HttpServletRequest;
 import jakarta.servlet.http.HttpServletResponse;

 import org.apache.catalina.util.ServerInfo;
 import org.apache.tomcat.util.modeler.Registry;
 import org.apache.tomcat.util.res.StringManager;

 /**
  * This servlet will display a complete status of the HTTP/1.1 connector.
  */
 public class StatusManagerServlet extends HttpServlet implements NotificationListener {

     /**
      * Default constructor.
      */
     public StatusManagerServlet() {
     }

     @Serial
     private static final long serialVersionUID = 1L;

     // ----------------------------------------------------- Instance Variables
     /**
      * MBean server.
      */
     protected MBeanServer mBeanServer = null;


     /**
      * Vector of thread pools object names.
      */
     protected final List<ObjectName> threadPools = Collections.synchronizedList(new ArrayList<>());


     /**
      * Vector of request processors object names.
      */
     protected final List<ObjectName> requestProcessors = Collections.synchronizedList(new ArrayList<>());


     /**
      * Vector of global request processors object names.
      */
     protected final List<ObjectName> globalRequestProcessors = Collections.synchronizedList(new ArrayList<>());


     /**
      * The string manager for this package.
      */
     protected static final StringManager sm = StringManager.getManager(Constants.Package);


     // --------------------------------------------------------- Public Methods

     @Override
     public void init() throws ServletException {

         // Retrieve the MBean server
         mBeanServer = Registry.getRegistry(null).getMBeanServer();

         try {

             // Query Thread Pools
             String onStr = "*:type=ThreadPool,*";
             ObjectName objectName = new ObjectName(onStr);
             Set<ObjectInstance> set = mBeanServer.queryMBeans(objectName, null);
             Iterator<ObjectInstance> iterator = set.iterator();
             while (iterator.hasNext()) {
                 ObjectInstance oi = iterator.next();
                 threadPools.add(oi.getObjectName());
             }

             // Query Global Request Processors
             onStr = "*:type=GlobalRequestProcessor,*";
             objectName = new ObjectName(onStr);
             set = mBeanServer.queryMBeans(objectName, null);
             iterator = set.iterator();
             while (iterator.hasNext()) {
                 ObjectInstance oi = iterator.next();
                 globalRequestProcessors.add(oi.getObjectName());
             }

             // Query Request Processors
             onStr = "*:type=RequestProcessor,*";
             objectName = new ObjectName(onStr);
             set = mBeanServer.queryMBeans(objectName, null);
             iterator = set.iterator();
             while (iterator.hasNext()) {
                 ObjectInstance oi = iterator.next();
                 requestProcessors.add(oi.getObjectName());
             }

             // Register with MBean server
             onStr = "JMImplementation:type=MBeanServerDelegate";
             objectName = new ObjectName(onStr);
             mBeanServer.addNotificationListener(objectName, this, null, null);

         } catch (Exception e) {
             log(sm.getString("managerServlet.error.jmx"), e);
         }

     }


     @Override
     public void destroy() {

         // Unregister with MBean server
         String onStr = "JMImplementation:type=MBeanServerDelegate";
         ObjectName objectName;
         try {
             objectName = new ObjectName(onStr);
             mBeanServer.removeNotificationListener(objectName, this, null, null);
         } catch (Exception e) {
             log(sm.getString("managerServlet.error.jmx"), e);
         }

     }


     @Override
     public void doGet(HttpServletRequest request, HttpServletResponse response) throws IOException, ServletException {

         StringManager smClient = StringManager.getManager(Constants.Package, request.getLocales());

         // mode is flag for HTML, JSON or XML output
         int mode = 0;
         // if ?XML=true, set the mode to XML
         if (request.getParameter("XML") != null && request.getParameter("XML").equals("true")) {
             mode = 1;
         }
         // if ?JSON=true, set the mode to JSON
         if (request.getParameter("JSON") != null && request.getParameter("JSON").equals("true")) {
             mode = 2;
         }
         StatusTransformer.setContentType(response, mode);

         PrintWriter writer = response.getWriter();

         boolean completeStatus = request.getPathInfo() != null && request.getPathInfo().equals("/all");

         // use StatusTransformer to output status
         Object[] args = new Object[1];
         args[0] = getServletContext().getContextPath();
         StatusTransformer.writeHeader(writer, args, mode);

         // Body Header Section
         args = new Object[2];
         args[0] = getServletContext().getContextPath();
         if (completeStatus) {
             args[1] = smClient.getString("statusServlet.complete");
         } else {
             args[1] = smClient.getString("statusServlet.title");
         }
         // use StatusTransformer to output status
         StatusTransformer.writeBody(writer, args, mode);

         // Manager Section
         args = new Object[9];
         args[0] = smClient.getString("htmlManagerServlet.manager");
         args[1] = response.encodeURL(getServletContext().getContextPath() + "/html/list");
         args[2] = smClient.getString("htmlManagerServlet.list");
         args[3] = // External link
                 getServletContext().getContextPath() + "/" +
                         smClient.getString("htmlManagerServlet.helpHtmlManagerFile");
         args[4] = smClient.getString("htmlManagerServlet.helpHtmlManager");
         args[5] = // External link
                 getServletContext().getContextPath() + "/" + smClient.getString("htmlManagerServlet.helpManagerFile");
         args[6] = smClient.getString("htmlManagerServlet.helpManager");
         if (completeStatus) {
             args[7] = response.encodeURL(getServletContext().getContextPath() + "/status");
             args[8] = smClient.getString("statusServlet.title");
         } else {
             args[7] = response.encodeURL(getServletContext().getContextPath() + "/status/all");
             args[8] = smClient.getString("statusServlet.complete");
         }
         // use StatusTransformer to output status
         StatusTransformer.writeManager(writer, args, mode);

         // Server Header Section
         args = new Object[9];
         args[0] = smClient.getString("htmlManagerServlet.serverTitle");
         args[1] = smClient.getString("htmlManagerServlet.serverVersion");
         args[2] = smClient.getString("htmlManagerServlet.serverJVMVersion");
         args[3] = smClient.getString("htmlManagerServlet.serverJVMVendor");
         args[4] = smClient.getString("htmlManagerServlet.serverOSName");
         args[5] = smClient.getString("htmlManagerServlet.serverOSVersion");
         args[6] = smClient.getString("htmlManagerServlet.serverOSArch");
         args[7] = smClient.getString("htmlManagerServlet.serverHostname");
         args[8] = smClient.getString("htmlManagerServlet.serverIPAddress");
         // use StatusTransformer to output status
         StatusTransformer.writePageHeading(writer, args, mode);

         // Server Row Section
         args = new Object[8];
         args[0] = ServerInfo.getServerInfo();
         args[1] = System.getProperty("java.runtime.version");
         args[2] = System.getProperty("java.vm.vendor");
         args[3] = System.getProperty("os.name");
         args[4] = System.getProperty("os.version");
         args[5] = System.getProperty("os.arch");
         try {
             InetAddress address = InetAddress.getLocalHost();
             args[6] = address.getHostName();
             args[7] = address.getHostAddress();
         } catch (UnknownHostException e) {
             args[6] = "-";
             args[7] = "-";
         }
         // use StatusTransformer to output status
         StatusTransformer.writeServerInfo(writer, args, mode);

         try {

             // Display virtual machine statistics
             args = new Object[9];
             args[0] = smClient.getString("htmlManagerServlet.jvmFreeMemory");
             args[1] = smClient.getString("htmlManagerServlet.jvmTotalMemory");
             args[2] = smClient.getString("htmlManagerServlet.jvmMaxMemory");
             args[3] = smClient.getString("htmlManagerServlet.jvmTableTitleMemoryPool");
             args[4] = smClient.getString("htmlManagerServlet.jvmTableTitleType");
             args[5] = smClient.getString("htmlManagerServlet.jvmTableTitleInitial");
             args[6] = smClient.getString("htmlManagerServlet.jvmTableTitleTotal");
             args[7] = smClient.getString("htmlManagerServlet.jvmTableTitleMaximum");
             args[8] = smClient.getString("htmlManagerServlet.jvmTableTitleUsed");
             // use StatusTransformer to output status
             StatusTransformer.writeVMState(writer, mode, args);

             args = new Object[19];
             args[0] = smClient.getString("htmlManagerServlet.connectorStateMaxThreads");
             args[1] = smClient.getString("htmlManagerServlet.connectorStateThreadCount");
             args[2] = smClient.getString("htmlManagerServlet.connectorStateThreadBusy");
             args[3] = smClient.getString("htmlManagerServlet.connectorStateAliveSocketCount");
             args[4] = smClient.getString("htmlManagerServlet.connectorStateMaxProcessingTime");
             args[5] = smClient.getString("htmlManagerServlet.connectorStateProcessingTime");
             args[6] = smClient.getString("htmlManagerServlet.connectorStateRequestCount");
             args[7] = smClient.getString("htmlManagerServlet.connectorStateErrorCount");
             args[8] = smClient.getString("htmlManagerServlet.connectorStateBytesReceived");
             args[9] = smClient.getString("htmlManagerServlet.connectorStateBytesSent");
             args[10] = smClient.getString("htmlManagerServlet.connectorStateTableTitleStage");
             args[11] = smClient.getString("htmlManagerServlet.connectorStateTableTitleTime");
             args[12] = smClient.getString("htmlManagerServlet.connectorStateTableTitleBSent");
             args[13] = smClient.getString("htmlManagerServlet.connectorStateTableTitleBRecv");
             args[14] = smClient.getString("htmlManagerServlet.connectorStateTableTitleClientForw");
             args[15] = smClient.getString("htmlManagerServlet.connectorStateTableTitleClientAct");
             args[16] = smClient.getString("htmlManagerServlet.connectorStateTableTitleVHost");
             args[17] = smClient.getString("htmlManagerServlet.connectorStateTableTitleRequest");
             args[18] = smClient.getString("htmlManagerServlet.connectorStateHint");
             StatusTransformer.writeConnectorsState(writer, mBeanServer, threadPools, globalRequestProcessors,
                     requestProcessors, mode, args);

             if (request.getPathInfo() != null && request.getPathInfo().equals("/all")) {
                 // Note: Retrieving the full status is much slower
                 // use StatusTransformer to output status
                 StatusTransformer.writeDetailedState(writer, mBeanServer, mode);
             }

         } catch (Exception e) {
             throw new ServletException(e);
         }

         // use StatusTransformer to output status
         StatusTransformer.writeFooter(writer, mode);
     }


     // ------------------------------------------- NotificationListener Methods

     @Override
     public void handleNotification(Notification notification, Object handback) {

         if (notification instanceof MBeanServerNotification) {
             ObjectName objectName = ((MBeanServerNotification) notification).getMBeanName();
             if (notification.getType().equals(MBeanServerNotification.REGISTRATION_NOTIFICATION)) {
                 String type = objectName.getKeyProperty("type");
                 if (type != null) {
                     switch (type) {
                         case "ThreadPool" -> threadPools.add(objectName);
                         case "GlobalRequestProcessor" -> globalRequestProcessors.add(objectName);
                         case "RequestProcessor" -> requestProcessors.add(objectName);
                     }
                 }
             } else if (notification.getType().equals(MBeanServerNotification.UNREGISTRATION_NOTIFICATION)) {
                 String type = objectName.getKeyProperty("type");
                 if (type != null) {
                     switch (type) {
                         case "ThreadPool" -> threadPools.remove(objectName);
                         case "GlobalRequestProcessor" -> globalRequestProcessors.remove(objectName);
                         case "RequestProcessor" -> requestProcessors.remove(objectName);
                     }
                 }
             }
         }
     }
 }
	/*
	* Licensed to the Apache Software Foundation (ASF) under one or more
	* contributor license agreements. See the NOTICE file distributed with
	* this work for additional information regarding copyright ownership.
	* The ASF licenses this file to You under the Apache License, Version 2.0
	* (the "License"); you may not use this file except in compliance with
	* the License. You may obtain a copy of the License at
	*
	* http://www.apache.org/licenses/LICENSE-2.0
	*
	* Unless required by applicable law or agreed to in writing, software
	* distributed under the License is distributed on an "AS IS" BASIS,
	* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
	* See the License for the specific language governing permissions and
	* limitations under the License.
	*/
	package org.apache.catalina.manager;

	import java.io.IOException;
	import java.io.PrintWriter;
	import java.io.Serial;
	import java.net.InetAddress;
	import java.net.UnknownHostException;
	import java.util.ArrayList;
	import java.util.Collections;
	import java.util.Iterator;
	import java.util.List;
	import java.util.Set;

	import javax.management.MBeanServer;
	import javax.management.MBeanServerNotification;
	import javax.management.Notification;
	import javax.management.NotificationListener;
	import javax.management.ObjectInstance;
	import javax.management.ObjectName;

	import jakarta.servlet.ServletException;
	import jakarta.servlet.http.HttpServlet;
	import jakarta.servlet.http.HttpServletRequest;
	import jakarta.servlet.http.HttpServletResponse;

	import org.apache.catalina.util.ServerInfo;
	import org.apache.tomcat.util.modeler.Registry;
	import org.apache.tomcat.util.res.StringManager;

	/**
	* This servlet will display a complete status of the HTTP/1.1 connector.
	*/
	public class StatusManagerServlet extends HttpServlet implements NotificationListener {

	/**
	* Default constructor.
	*/
	public StatusManagerServlet() {
	}

	@Serial
	private static final long serialVersionUID = 1L;

	// ----------------------------------------------------- Instance Variables
	/**
	* MBean server.
	*/
	protected MBeanServer mBeanServer = null;


	/**
	* Vector of thread pools object names.
	*/
	protected final List<ObjectName> threadPools = Collections.synchronizedList(new ArrayList<>());


	/**
	* Vector of request processors object names.
	*/
	protected final List<ObjectName> requestProcessors = Collections.synchronizedList(new ArrayList<>());


	/**
	* Vector of global request processors object names.
	*/
	protected final List<ObjectName> globalRequestProcessors = Collections.synchronizedList(new ArrayList<>());


	/**
	* The string manager for this package.
	*/
	protected static final StringManager sm = StringManager.getManager(Constants.Package);


	// --------------------------------------------------------- Public Methods

	@Override
	public void init() throws ServletException {

	// Retrieve the MBean server
	mBeanServer = Registry.getRegistry(null).getMBeanServer();

	try {

	// Query Thread Pools
	String onStr = ":type=ThreadPool,";
	ObjectName objectName = new ObjectName(onStr);
	Set<ObjectInstance> set = mBeanServer.queryMBeans(objectName, null);
	Iterator<ObjectInstance> iterator = set.iterator();
	while (iterator.hasNext()) {
	ObjectInstance oi = iterator.next();
	threadPools.add(oi.getObjectName());
	}

	// Query Global Request Processors
	onStr = ":type=GlobalRequestProcessor,";
	objectName = new ObjectName(onStr);
	set = mBeanServer.queryMBeans(objectName, null);
	iterator = set.iterator();
	while (iterator.hasNext()) {
	ObjectInstance oi = iterator.next();
	globalRequestProcessors.add(oi.getObjectName());
	}

	// Query Request Processors
	onStr = ":type=RequestProcessor,";
	objectName = new ObjectName(onStr);
	set = mBeanServer.queryMBeans(objectName, null);
	iterator = set.iterator();
	while (iterator.hasNext()) {
	ObjectInstance oi = iterator.next();
	requestProcessors.add(oi.getObjectName());
	}

	// Register with MBean server
	onStr = "JMImplementation:type=MBeanServerDelegate";
	objectName = new ObjectName(onStr);
	mBeanServer.addNotificationListener(objectName, this, null, null);

	} catch (Exception e) {
	log(sm.getString("managerServlet.error.jmx"), e);
	}

	}


	@Override
	public void destroy() {

	// Unregister with MBean server
	String onStr = "JMImplementation:type=MBeanServerDelegate";
	ObjectName objectName;
	try {
	objectName = new ObjectName(onStr);
	mBeanServer.removeNotificationListener(objectName, this, null, null);
	} catch (Exception e) {
	log(sm.getString("managerServlet.error.jmx"), e);
	}

	}


	@Override
	public void doGet(HttpServletRequest request, HttpServletResponse response) throws IOException, ServletException {

	StringManager smClient = StringManager.getManager(Constants.Package, request.getLocales());

	// mode is flag for HTML, JSON or XML output
	int mode = 0;
	// if ?XML=true, set the mode to XML
	if (request.getParameter("XML") != null && request.getParameter("XML").equals("true")) {
	mode = 1;
	}
	// if ?JSON=true, set the mode to JSON
	if (request.getParameter("JSON") != null && request.getParameter("JSON").equals("true")) {
	mode = 2;
	}
	StatusTransformer.setContentType(response, mode);

	PrintWriter writer = response.getWriter();

	boolean completeStatus = request.getPathInfo() != null && request.getPathInfo().equals("/all");

	// use StatusTransformer to output status
	Object[] args = new Object[1];
	args[0] = getServletContext().getContextPath();
	StatusTransformer.writeHeader(writer, args, mode);

	// Body Header Section
	args = new Object[2];
	args[0] = getServletContext().getContextPath();
	if (completeStatus) {
	args[1] = smClient.getString("statusServlet.complete");
	} else {
	args[1] = smClient.getString("statusServlet.title");
	}
	// use StatusTransformer to output status
	StatusTransformer.writeBody(writer, args, mode);

	// Manager Section
	args = new Object[9];
	args[0] = smClient.getString("htmlManagerServlet.manager");
	args[1] = response.encodeURL(getServletContext().getContextPath() + "/html/list");
	args[2] = smClient.getString("htmlManagerServlet.list");
	args[3] = // External link
	getServletContext().getContextPath() + "/" +
	smClient.getString("htmlManagerServlet.helpHtmlManagerFile");
	args[4] = smClient.getString("htmlManagerServlet.helpHtmlManager");
	args[5] = // External link
	getServletContext().getContextPath() + "/" + smClient.getString("htmlManagerServlet.helpManagerFile");
	args[6] = smClient.getString("htmlManagerServlet.helpManager");
	if (completeStatus) {
	args[7] = response.encodeURL(getServletContext().getContextPath() + "/status");
	args[8] = smClient.getString("statusServlet.title");
	} else {
	args[7] = response.encodeURL(getServletContext().getContextPath() + "/status/all");
	args[8] = smClient.getString("statusServlet.complete");
	}
	// use StatusTransformer to output status
	StatusTransformer.writeManager(writer, args, mode);

	// Server Header Section
	args = new Object[9];
	args[0] = smClient.getString("htmlManagerServlet.serverTitle");
	args[1] = smClient.getString("htmlManagerServlet.serverVersion");
	args[2] = smClient.getString("htmlManagerServlet.serverJVMVersion");
	args[3] = smClient.getString("htmlManagerServlet.serverJVMVendor");
	args[4] = smClient.getString("htmlManagerServlet.serverOSName");
	args[5] = smClient.getString("htmlManagerServlet.serverOSVersion");
	args[6] = smClient.getString("htmlManagerServlet.serverOSArch");
	args[7] = smClient.getString("htmlManagerServlet.serverHostname");
	args[8] = smClient.getString("htmlManagerServlet.serverIPAddress");
	// use StatusTransformer to output status
	StatusTransformer.writePageHeading(writer, args, mode);

	// Server Row Section
	args = new Object[8];
	args[0] = ServerInfo.getServerInfo();
	args[1] = System.getProperty("java.runtime.version");
	args[2] = System.getProperty("java.vm.vendor");
	args[3] = System.getProperty("os.name");
	args[4] = System.getProperty("os.version");
	args[5] = System.getProperty("os.arch");
	try {
	InetAddress address = InetAddress.getLocalHost();
	args[6] = address.getHostName();
	args[7] = address.getHostAddress();
	} catch (UnknownHostException e) {
	args[6] = "-";
	args[7] = "-";
	}
	// use StatusTransformer to output status
	StatusTransformer.writeServerInfo(writer, args, mode);

	try {

	// Display virtual machine statistics
	args = new Object[9];
	args[0] = smClient.getString("htmlManagerServlet.jvmFreeMemory");
	args[1] = smClient.getString("htmlManagerServlet.jvmTotalMemory");
	args[2] = smClient.getString("htmlManagerServlet.jvmMaxMemory");
	args[3] = smClient.getString("htmlManagerServlet.jvmTableTitleMemoryPool");
	args[4] = smClient.getString("htmlManagerServlet.jvmTableTitleType");
	args[5] = smClient.getString("htmlManagerServlet.jvmTableTitleInitial");
	args[6] = smClient.getString("htmlManagerServlet.jvmTableTitleTotal");
	args[7] = smClient.getString("htmlManagerServlet.jvmTableTitleMaximum");
	args[8] = smClient.getString("htmlManagerServlet.jvmTableTitleUsed");
	// use StatusTransformer to output status
	StatusTransformer.writeVMState(writer, mode, args);

	args = new Object[19];
	args[0] = smClient.getString("htmlManagerServlet.connectorStateMaxThreads");
	args[1] = smClient.getString("htmlManagerServlet.connectorStateThreadCount");
	args[2] = smClient.getString("htmlManagerServlet.connectorStateThreadBusy");
	args[3] = smClient.getString("htmlManagerServlet.connectorStateAliveSocketCount");
	args[4] = smClient.getString("htmlManagerServlet.connectorStateMaxProcessingTime");
	args[5] = smClient.getString("htmlManagerServlet.connectorStateProcessingTime");
	args[6] = smClient.getString("htmlManagerServlet.connectorStateRequestCount");
	args[7] = smClient.getString("htmlManagerServlet.connectorStateErrorCount");
	args[8] = smClient.getString("htmlManagerServlet.connectorStateBytesReceived");
	args[9] = smClient.getString("htmlManagerServlet.connectorStateBytesSent");
	args[10] = smClient.getString("htmlManagerServlet.connectorStateTableTitleStage");
	args[11] = smClient.getString("htmlManagerServlet.connectorStateTableTitleTime");
	args[12] = smClient.getString("htmlManagerServlet.connectorStateTableTitleBSent");
	args[13] = smClient.getString("htmlManagerServlet.connectorStateTableTitleBRecv");
	args[14] = smClient.getString("htmlManagerServlet.connectorStateTableTitleClientForw");
	args[15] = smClient.getString("htmlManagerServlet.connectorStateTableTitleClientAct");
	args[16] = smClient.getString("htmlManagerServlet.connectorStateTableTitleVHost");
	args[17] = smClient.getString("htmlManagerServlet.connectorStateTableTitleRequest");
	args[18] = smClient.getString("htmlManagerServlet.connectorStateHint");
	StatusTransformer.writeConnectorsState(writer, mBeanServer, threadPools, globalRequestProcessors,
	requestProcessors, mode, args);

	if (request.getPathInfo() != null && request.getPathInfo().equals("/all")) {
	// Note: Retrieving the full status is much slower
	// use StatusTransformer to output status
	StatusTransformer.writeDetailedState(writer, mBeanServer, mode);
	}

	} catch (Exception e) {
	throw new ServletException(e);
	}

	// use StatusTransformer to output status
	StatusTransformer.writeFooter(writer, mode);
	}


	// ------------------------------------------- NotificationListener Methods

	@Override
	public void handleNotification(Notification notification, Object handback) {

	if (notification instanceof MBeanServerNotification) {
	ObjectName objectName = ((MBeanServerNotification) notification).getMBeanName();
	if (notification.getType().equals(MBeanServerNotification.REGISTRATION_NOTIFICATION)) {
	String type = objectName.getKeyProperty("type");
	if (type != null) {
	switch (type) {
	case "ThreadPool" -> threadPools.add(objectName);
	case "GlobalRequestProcessor" -> globalRequestProcessors.add(objectName);
	case "RequestProcessor" -> requestProcessors.add(objectName);
	}
	}
	} else if (notification.getType().equals(MBeanServerNotification.UNREGISTRATION_NOTIFICATION)) {
	String type = objectName.getKeyProperty("type");
	if (type != null) {
	switch (type) {
	case "ThreadPool" -> threadPools.remove(objectName);
	case "GlobalRequestProcessor" -> globalRequestProcessors.remove(objectName);
	case "RequestProcessor" -> requestProcessors.remove(objectName);
	}
	}
	}
	}
	}
	}