When we launched Tomcat in the Debug mode, Eclipse took care of adding the JVM parameters for the debugging to the Tomcat launch script. 1步中设置的debug端口,适合tomcat的端口不一样的; 这里的Remote staging选择的都是same file system,这就要求本地代码和远程Tomcat的代码要一直;. Once the connection is established, the maven build will work as expected. But the good news is that today most of the IDE like Netbeans, Eclipse etc. The `remote-exec` provisioner supports both `ssh` and `winrm` type connections. Java provides Java Debug Wire Protocol (JDWP) for the purpose and the debugging can be run in an IDE like Eclipse and NetBeans. The post also gives a brief overview of the technologies that makes remote debugging possible. If you are using Tomcat or TomEE with Docker containers as part of your stack you can find various techniques to enable debug capabilities in these types of containers: 1. 3 and eclipse 2. Start Tomcat In Remote Debug Mode. How to Debug a Remote Java Application - DZone Java Java Zone. Also we have defined a bean viewResolver. New to SSL - debugging tomcat. Remote debugging is debugging an application by connecting the remotely running application with your development environment ( i. bat that handles the debug mode: rem --- Start SAP Portals Modification :debugServer rem Debugging Tomcat in this windo. Setting up a Remote Debugging Configuration in Eclipse is really easy so that you can debug your application from within Eclipse. Both can run in parallel and JMX can be enabled in Java Control Panel - JMX. For more information on configuring clusters on Tomcat, refer to this page. This option provides a simpler configuration when working with just one remote server or when the project is deployed to all remote servers. Remote Debugging with Mule and Eclipse want and configure same in Eclipse debug configuration as it's explained in my another post Remote Debugging - Tomcat+Eclipse. This will cause your JVM process to execute but wait (suspend=y) and listen for a socket connection from a remote debugging client on a free port (which it will write to stdout. I am trying to debug my server side code by single stepping through the java code. Run su to change to root user in Linux or MacOS. Configuring the Server for Remote Debugging. Add jars (Beware of a defect in Eclipse 3. Specify the port (8787). Please visit the oracle docs for more about JPDA. Something similar to remotely debugging an app running on jboss or tomcat using Eclipse remote debugger. SELinux is installed and enabled by default, and for most users it will function without issue affording an enhanced level of security. This guide may as well be applied to any other Java software. Try to run a servlet in Tomcat without any debugging statements and while Tomcat is running you add some lines of debugging to your class files, save the class file, run the servlet again and you’ll notice logging statements. Once you have the building block project created and open you may setup the debugging within Eclipse: In the Eclipse project view tool bar:. war file is deployed in a web/jee container, we have no way to track where / how the application runs besides doing on screen (or file) prompts. Email This BlogThis!. Here are instructions on setting up Eclipse to debug tomcat remotely. Don't touch the init script. Remote debugging is the only real option. The section Sample Debugging Problems And Their Solution is about sample problem solving on dummy debugging problem scenarios by applying the debugging skills you have learnt from the course. If it does, click Yes. CD into TOMCAT_HOME/bin folder in a terminal window. Now, in Netbeans and with your project open: Debug < Attach Debugger. Add jars (Beware of a defect in Eclipse 3. This skill can make it easy for you to find out the reason why your Java EE web application go wrong as well as debug and fix the problem quickly. If you meet Unable to connect to the remote server issue. jar commons-daemon. 0 RC3 which crashes Eclipse while pointing the mouse over a file name. Previous Getting started with Mockito - a tutorial for beginners Next Sharing a local folder during a remote desktop session with RDesktop. Well a Java debugger is there to make debugging comfortable and quick. But ultimate Edition is not free. Please visit the oracle docs for more about JPDA. Remote access over a specified (pre-configured) port How to get Help with Debugging Tomcat Be prepared to provide as much information as you can. I have faced the similar problem while trying to start the remote debugging in Eclipse. To start Tomcat with debugging support enabled, you must invoke the catalina. Second, open IntelliJ IDEA community edition, go to "Run -> Edit Configurations", click the "+" icon and select "Remote" from the list, then you will see a dialog like below:. Be sure you have a remote configuration for Tomcat to port 8787. Also we have defined a bean viewResolver. You may also need to choose a font that can display the charset in the response. Debug Configuration->Remote Java Application->new--Connect--Name: Debug Tomcat Project: jpetstore (which project is copied to the tomcat) Host: localhost Port: 5888--Source--all libs and src (此时可以看到程序会停在本机设的断点上,要提醒的是我们程序实际是跑在服务器上的,却能使用本机的断点,挺. We could easily set up a remote debugging session from eclipse and start tomcat from within VC. Note Unlike Eclipse IDE, there is always a 'server view' to configure the add server, IntelliJ do things differently, you need to add an "artifact (war file)" first, then only the "server view" will be displayed at the bottom. I hope you like my postings and I hope this article can help you one way or the other. You always have to touch catalina. Tomcat 7 maven plug-in for remote deployment and remote debugging using jpda in netbeans. This would assist all of us to understand the internals of servlets and tomcat. Open your build or release definition and add the Apache Tomcat Deployment task. Remote Debugging using JConsole, JMX and SSH Tunnels. Run Tomcat 7 in debug mode and I can debug my Java code, but get the above problems for JavaScript. Normally, when remote-debugging Tomcat, I've either got a webapp, a plugin, or a copy of the Tomcat source as a project. For more information on configuring clusters on Tomcat, refer to this page. Type localhost at Host or any name you have given to you localhost, mapped to 127. But the good news is that today most of the IDE like Netbeans, Eclipse etc. Debug Configuration->Remote Java Application->new--Connect--Name: Debug Tomcat Project: jpetstore (which project is copied to the tomcat) Host: localhost Port: 5888--Source--all libs and src (此时可以看到程序会停在本机设的断点上,要提醒的是我们程序实际是跑在服务器上的,却能使用本机的断点,挺. The only real competition for the throne would be UltraEdit for Windows. You may need to create this file, if it does not yet exist. Once the connection is established, the maven build will work as expected. Do a "netstat -lnp" to get the processid for port 8111 and make sure that it's the Tomcat you started up with JPDA and not, say an internal Tomcat that Eclipse launched. To run tomcat in remote debugging you can start using below command catalina jpda start This (above command) will start remote debugging using shared memory, and Eclipse, as far as I know, does not support shared memory as transport for debugging. (Redirected from Debugging remote Tomcat server) Jump to: navigation , search If you got problems on production environment this configuration is specially useful. But Don't worry!!! If you are unable to buy a license for…. Eclipse Setup: The Remote Java Application launch configuration should be used when debugging an application that is running on a remote VM. Last Updated on Tuesday, January 21, 2020 - 10:00 by Kondal Kolipaka. Disadvantages: only the Java program to be debugged, start the process cannot debug Java program, if the whole debugging need to use another way, I will summarize into another article. The only way to 'telnet 8080' is to start tomcat in the local machine, which i have done. Tomcat7: debugging realms - a howto?. Sometimes it is required to debug a remote application that is deployed in tomcat in the local network. By the end of the Eclipse Debugging Techniques And Tricks, you will master the fundamentals needed to for Debugging java based applications using Eclipse. The hostname can also be the IP address of the remote machine, for example using 127. wait=true -P int integration-test. Once the Tomcat server is started you can run this configuration. Run catalina. Click “Debug” to start debugging. jar commons-digester. Bookmark the permalink. Debugging a dynamic web page application based on servlets (tomcat) has always been problematic -- it is difficult to find where problems are when the code is executing on another computer in another user's address space. tomcat) Setting up Eclipse for Tomcat Debugging Remote debugging is project specific in Eclipse. Excellent post at Debugging : How To Configure IIS 7. It keeps telling me the following error: The Microsoft Visual Studio Remote Debugging Monitor (MSVSMON. Step 2: Remotely Debug Tomcat. We’ve jumped on board the Docker. A Complete Guide To Tomcat Start-Up Manual, Automatic, and Remote At first glance, starting up the Tomcat Server is a simple task. The following describes how to set up a remote debugging session with a running jython application (or any java application for that matter). 05/21/2018; 19 minutes to read +2; In this article. sh file on your tomcat installation. Debugging Wiki plugin can be debugged just like any other classes of a web application. sh file you created: Connect the Remote configuration: Run > Debug 'Tomcat Remote'. But this is not an effective way; and REMOTE DEBUGGING is the key to overcome this mountain. Edit the daemon. Tomcat Remote Debugging Eclipse - dev2qa. If you want to keep a record of all the logs when debugging, you can achieve this by going to the Logs tabs in the newly created Remote configuration and set the Save console output to file to the logs folder of your Tomcat installation. Change Directory under Tomcat bin folder C:\Program Files (x86)\Apache Software Foundation\Tomcat 7. There are two ways to this configuration: The Remote Tomcat settings options or Remote settingsoption. As I said earlier, for remote debugging, you need to run that application in debug mode. - Working as a part of remote software development team, interacting with remote project management, delivery managers, customers and remote teams in USA, UK, Canada and Ukraine to resolve issues in a timely manner. A user logs into an FME Server machine via RDP, and, upon logging out, the FME Server Web Application Service (Tomcat) stops. It is a primitive way to do it BUT IT WORKS. 17) How would you set up tomcat for remote debugging? Ans: In windows environment , open up your startup. jar commons-digester. For local tomcat debuggin, I have put in the tomcat bootstrap class, classpath, and jvm parameters, and run it just like a standalone java program. Note: This article only applies to FME Server 2012 and older. NET Core on IIS in Azure in Visual Studio. We could easily set up a remote debugging session from eclipse and start tomcat from within VC. Remote debugging is debugging an application by connecting the remotely running application with your development environment ( i. Overview Configure Tomcat: Enabling the JPDA Debugger in JVM Tomcat running with bat or sh Add these lines at the beginning of tomcat's startup. Over the last several weeks I've received a few questions about remote debugging with Eclipse. Use these steps to enable detailed debug logging for the SEPM tomcat server. jar commons-modeler. I am trying to deploy web application in tomcat 7. Enabling Remote Access. Remote debugging a web application on Apache Tomcat The steps for compiling and building your application remains the same, as described above. Choose Server. This action is to add port in your tomcat when it starts, and the port number defined here is "8787" (This is the default debug port for tomcat) Step 2: Add "Remote Java Application" in Eclipse's Debug. Host: The IP address of the host your Tomcat installation is running on (127. I want to run TomCat in debug mode so I can debug my servlet from Eclipse. Email This BlogThis!. This issue has been fixed for FME Server 2013. This is particularly useful when you are developing a program for a device that cannot host the development platform. Apache Tomcat has its own implementation of several key elements of java. NET Core app, deploy it to IIS using Azure, and attach the remote debugger from Visual Studio. Excellent post at Debugging : How To Configure IIS 7. bat DEBUG_OPTS=-Xdebug -Xrunjdwp:transport=dt_socket,address=8000,server=y,suspend=n From your eclipse, create a Run Configuration for 'Remote Java Application' on socket 8000 and restart tomcat. jar commons-beanutils. Eclipse Plugin for esp-idf is aiming to provide better tooling capabilities, which simplifies and enhances standard Eclipse CDT for developing and debugging ESP32 IoT applications. json file, which is usually located in /etc/docker/. Tomcat Remote Debug Logs. Email This BlogThis!. Posted on March 16, 2014 Updated on March 16, 2014. Note Unlike Eclipse IDE, there is always a ‘server view’ to configure the add server, IntelliJ do things differently, you need to add an “artifact (war file)” first, then only the “server view” will be displayed at the bottom. Download and Install a simple web application. In the Run\Debug Configurations window, set the Name of the configuration as docker tomcat and in Settings set the port to ‘8000’ as the default Tomcat JPDA debuging port. Introduction 3. The following text was added to the end of the Dockerfile and there are three sections where a commented line should be fully formatted as code: # Port 5009 s used by the eclipse remote debugger and jvm. This action is to add port in your tomcat when it starts, and the port number defined here is "8787" (This is the default debug port for tomcat) Step 2: Add "Remote Java Application" in Eclipse's Debug. Select Run / Debug Configurations menu item; On the appearing window Select Java Remote Application; Press Right mouse click on this menu item and Select New Specify a name for the new Debug Configuration Default connection type and property should be fine if you are debugging a local codeBeamer instance. The debugging of a web application involves several components: The Application Server. ) Add all jars in TOMCAT_HOME\bin\ bootstrap. Run Tomcat 7 in debug mode and I can debug my Java code, but get the above problems for JavaScript. Remote debugging Tomcat applications on Raspberry Pi with IntelliJ 02 January 2016. Follow the below steps in your computer machine. In this situation, we need to tell Tomcat to wait for a remote debugger to connect before continuing with its startup routine. This guide tries to help with debugging of SSL/TLS problems and shows the most common problems in interaction between client and server. tomcat remote debugging using netbeans Tomcat: tomcat/bin/catalina. Patrick McCarthy A blog Remote Java Debugging With Docker 24 Jul 2014. It was installed as a service,. controller and all its child packages. The Eclipse JVM process will make a local network connection to the (separate) Tomcat JVM process. Make sure you have added tomcat root directory path in the CATALINA_HOME environment variable and added the bin path in the path variable. 1 instead of localhost. Ans: Your set up might have been not done well. A reverse proxy is useful if you have a client application that doesn't support the use of an HTTP proxy, or you want to avoid configuring it to use a proxy. You can now connect with a debugger to port 2222 (or as set in the value for bbconfig. I've read a couple of articles explaining how to configure tomcat and Eclipse to enable remote debugging, did what those articles instructed with no luck. This is easy to do and it works. 1 2019-08-11 node-js eclipse google-chrome-devtools remote-debugging Eclipse. Let's see how to achieve this using WSO2 Developer. One of the most useful skill you should take is deploy and debug Tomcat within your Java EE Integrated Development Environment. Bookmark the permalink. This is done by adding an additional CATALINA_OPTS or JAVA_OPTS to the Tomcat setenv. Give a name to this debug configuration (homebase-tomcat for me). Remember to set the port number as the 1 you set in Step#1 and hits "Debug" button. To enable debug on tomcat, set the following line in your catalina. Click “Debug” to start debugging. Remote debugging Tomcat with Eclipse I have tried to use tomcat remote debugging using Eclipse. In this post we will learn how to debug java web application deployed using tomcat on remote machine. Tomcat 7 and start it by double clicking "startup. 这里有多种方法可以做到,根据tomcat所运行的操作系统而有些微的不同。但是不管用哪种方法,这些配置的背后都做了同一件事:传递特定的启动参数给 JVM,让它启用远程调试(remote debugging)。. For debugging Node. $ mvn tomcat:run If you get a message Listening for transport dt_socket at address: 5005, all is good. My favorite Eclipse IDE provides the remote debugging with lots of useful features. Typically this is done during development when you don't want to run a web server like Apache. I hope you like my postings and I hope this article can help you one way or the other. Apache Debugging Guide¶ This document is a collection of notes regarding tools and techniques for debugging Apache httpd and its modules. bat" file that you are edited, now Tomcat will run in remote debugging mode. Click Alt+Insert, select the server of interest (e. Please visit the oracle docs for more about JPDA. 1 My tomcat 1. Debugging a Remote Server 6. To prevent anyone from being in this tormenting situation ever again, this article describes the result of my 11 day quest to get a remote JMS client (running in Tomcat 6) to send JMS messages to a clustered GlassFish v2. This is a guide to quickly start your debugging session with TomEE as a TomEE developer. When the current active log reaches 10 million bytes, the tomcat server deletes the backup log (if it exists), and creates a new active log. Note: The JPDA_SUSPEND=y line is optional, it is useful if you want that Apache Tomcat doesn't start its execution until step 3 is completed, useful if you want to troubleshoot application initialization issues. This article shows how to enable Tomcat 7 remote debugging. Set some breakpoints in your code. TomCat version : 7. This action is to add port in your tomcat when it starts, and the port number defined here is "8787" (This is the default debug port for tomcat) Step 2: Add "Remote Java Application" in Eclipse's Debug. Run ps -ef|grep tomcat to see whether the tomcat server is running or not. Start Tomcat In Remote Debug Mode. 7 or higher on your Pi. Run the startup script when starting tomcat to run tomcat in debug mode. bat" file that you are edited, now Tomcat will run in remote debugging mode. bat if you want to use custom JPDA setting. Typically this is done during development when you don't want to run a web server like Apache. Have no idea why it doesn’t work, just like debugging Java in Tomcat is really easy to setup and it just works. This mailing list is for WTP development issues. sh file you created: Connect the Remote configuration: Run > Debug 'Tomcat Remote'. Comment fonctionne Eclipse Remote Debugging derrière les scences. But I can't acheive. Navigate to C:\tomcat\conf and open server. In the Run\Debug Configurations window, set the Name of the configuration as docker tomcat and in Settings set the port to ‘8000’ as the default Tomcat JPDA debuging port. So without further ado here is how I use Tomcat, JBoss, and Eclipse to build and debug applications. Set the WebLogic Server in debug mode by setting the debug options in the startWebLogic batch script file. Style and approach. To get remote debugging working, we need to instruct Tomcat to start the JVM in a “debug” mode and then attach to the JVM from IDEA. What am do I have to do to succeed in this new venture? J. Remote debugging Pluto's binary distribution or portlets deployed in Pluto. 32,773 Remote Jobs available: Work Remotely as a Programmer, Designer, Copywriter, Customer Support Rep, Project Manager and more! Hire remote workers. If we now press the Submit Query button, we will see this; This window asks for the confirmation of the change of perspective to debug in eclipse. xml for Context. Configure …. Edit the daemon. bat and add to file somewhere in beginning. I want to debug this application remotely using Ec. In a Dockerfile. To add the above configuration double click on tomcat server which will be available in server view. 05/21/2018; 19 minutes to read +2; In this article. 0 (Mojarra) playground with Eclipse 3. The file defines different roles such as admin , manager, etc and then specifies each user's name and password and roles the user may play. I assume that you've installed Java 1. Users report that the "data1" rows look fine, but the "data0" rows are invisible - there's no data, and the rows' background color is the same as the page's background color. Add jars (Beware of a defect in Eclipse 3. Because Tomcat keeps dying after about 36 hours. The Eclipse Foundation - home to a global community, the Eclipse IDE, Jakarta EE and over 350 open source projects, including runtimes, tools and frameworks. Remote Java Debug Configuration. The debugging provided by JBoss is based on the Java Platform Debugger Architecture (JPDA). I was checking constantly this blog and I am impressed! Extremely helpful information specifically the last part 🙂 I care for such info much. Configure …. If tomcat is running, run shutdown. export JPDA_TRANSPORT=dt_socket 2. You can now connect with a debugger to port 2222 (or as set in the value for bbconfig. จากครั้งที่แล้วได้พูดถึงการ รัน tomcat ด้วย maven โดยให้ reload อัตโนมัติไม่ต้อง Stop/Start Server ซึ่งทำให้เราประหยัดเวลาในการ Development…. Run Tomcat 7 in debug mode and I can debug my Java code, but get the above problems for JavaScript. Debugging Exceptions during Hybris Startup. Thanks to blazing-fast performance and industry-leading energy efficiency, hundreds of millions of users enjoy exploring the web with Safari. The file defines different roles such as admin , manager, etc and then specifies each user's name and password and roles the user may play. you can say to connect with code in your IDE). @Breefield. x or Use Tomcat installation (takes control of Tomcat installation) is selected in WTP 2. When we launched Tomcat in the Debug mode, Eclipse took care of adding the JVM parameters for the debugging to the Tomcat launch script. It was a fun time, full of exploration, but I do not miss them. 2) ไปเซ็ต Remote Debugging ที่ Intellij ไปที่เมูน Run > Edit Configuration จากนั้นทำการสร้าง Configuration แบบ Remote แล้วเซ็ตค่าให้ตรงกับที่เขียนไว้ใน pom. export JPDA_ADDRESS=8000 3. The debugging provided by JBoss is based on the Java Platform Debugger Architecture (JPDA). bat (inside the bin folder of tomcat) and search for "set JPDA_TRANSPORT". By default, the run goal runs your application in a forked process. View all posts by Danny → This entry was posted in Java, Windows and tagged Eclipse, Tomcat, Windows. We’ve jumped on board the Docker. Maven Debugging. (6 replies) Hi all, I'm trying to debug an AXIS webservice which is running on my local tomcat 5. JPDA is a multi-tiered debugging architecture. debug debug agent. Having to set up my own machine to develop application using apache-tomcat-6. 1, you need to add these arguments to the startup script. The Apache Tomcat project is intended to be a collaboration of the best-of-breed developers from around the world. Remote Debugging. To enable a debugger to attach to the tomcat's jvm, you need to provide the following java options to the jvm when starting it. Remote Debugging - Tomcat + Eclipse I am assuming that you have setup Tomcat by exploding its zip distribution. JDeveloper. By the end of the Eclipse Debugging Techniques And Tricks, you will master the fundamentals needed to for Debugging java based applications using Eclipse. Style and approach. Getting the server to. 用 IDE (这里用IntelliJ IDEA)要能够调试远程Tomcat应用; Tomcat启用远程调试. Be sure you have a remote configuration for Tomcat to port 8787. Remote Debug ASP. Depuracion remota de JAVA en tomcat/ Debugging remote Java tomcat 12 Ene La depuración es muy importante en el transcurso del desarrollo de una aplicación, ya que nos permiten manejar mejor nuestro código y nos ayudan de muchas formas en el desarrollo y detección de errores. Use these steps to enable detailed debug logging for the SEPM tomcat server. Is there a way to remotely debug an app running on Bluemix. The CMD here adds the 'jpda' option to the default Tomcat run command which enables remote debugging. I recommend Tomcat 7 over Tomcat 6 for all apps, since Tomcat 7 also supports the older servlet 2. bat and add to file somewhere in beginning. We show 2 methods of installing JProfiler agent and accessing JVM to be profiled from remote location. jar TOMCAT_HOME\server\lib\ catalina-ant. 59 running within Eclipse, when the webserver provided REMOTE_USER. We could easily set up a remote debugging session from eclipse and start tomcat from within VC. Practically, this means setting some additional start up arguments. Running an java application in debug mode. For debugging Node. So without further ado here is how I use Tomcat, JBoss, and Eclipse to build and debug applications. Using VS Code to Debug Java Applications. catalina_port). Remote debugging using Eclipse Here you'll see how to create and manage a configuration to remotely debug your launched Alfresco project that's waiting for a connection. You may have more running than you think you do. That way when you start the configuration, Intellij will connect via Socket to the Tomcat server that emits via port 8000. I use CVS from my PowerBook, but I've never played with Tomcat or Subversion. One of them is deploying ODE as a web service in Axis 2, by deploying the ode war distribution inside an application server like Apache tomcat. wait=true -P int integration-test. On the other hand, when you consider that it can be accomplished in a variety of ways (manually, automatically, or remotely), that these methods differ from platform to platform, and that when it comes down to it, if you can't get your server to start up, you're in. The JDWP protocol is the protocol used to debug with a remote debugger. More details could be found in the GitHub repository of the Tomcat extension. Under Tomcat 3. When the current active log reaches 10 million bytes, the tomcat server deletes the backup log (if it exists), and creates a new active log. Both the Windows and the Linux versions of Sun's JDK (not JRE!) contain JConsole, so it's quite trivial to get. Windows installer distribution of Tomcat doesn't contain all config and script files including catalina. How it works : Basic concept Remote debugging feature is provided by Java specification itself. First you need to start the tomcat server in JPDA mode, this mode can make the tomcat server remote connected from a eclipse project. Enabling Tomcat 7 remote debugging via JDWP Linux. If Tomcat is not running on the same machine where you run IntelliJ IDEA, you should specify the actual remote server host in the run/debug configuration, not `localhost`. It is not intended to help with writing applications and thus does not care about specific API's etc. Open your build or release definition and add the Apache Tomcat Deployment task. Use the following steps to add a remote instance to a cluster:. The only real competition for the throne would be UltraEdit for Windows. export JPDA_TRANSPORT=dt_socket 2. 5 Eclipse 3. remote debug mode in eclipse in Ubuntu and Linux, Set debug mode in tomcat, set eclipse debug mode Just Check the **PORT number 8000** available in the **Catalina.   Here is a section from the tomcat. This will load our CrunchifyHelloWorld. I have configured Tomcat to run in debug mode by the following steps:. If you want to keep a record of all the logs when debugging, you can achieve this by going to the Logs tabs in the newly created Remote configuration and set the Save console output to file to the logs folder of your Tomcat installation. Debugging is enabled on port 4000. Connection refused from remote machine. Remote debugging tomcat with OpenShift. The configuration process for debugging a Java servlet may appear scary and complex to the beginner. Run Tomcat 7 in debug mode and I can debug my Java code, but get the above problems for JavaScript. Save the JSP file. Debugging a web application in NetBeans is just as easy as debugging any Java application. At Remote Java Application, click new and configure the settings. For example, Eclipse has a debugging view that can help you work with tomcat via remote control. debug debug agent. x has introduced a class called TomcatURLStreamHandlerFactory where the singleton has a static instance field and a final registered attribute which are not always in sync and cause unexpected exceptions. sh to stop it. bat again when changing the mode and this file is really a batch beast, isn't it?.