When I add the following Java options to enable debugging:
JAVA_OPTS="$JAVA_OPTS -noverify -Xdebug -Xnoagent -Djava.compiler=NONE -Xrunjdwp:transport=dt_socket,server=y,suspend=n,address=5005"
I get the following error whenever I try to shutdown the tomcat:
ERROR: transport error 202: bind failed: Address already in use ["transport.c",L41]
ERROR: JDWP Transport dt_socket failed to initialize, TRANSPORT_INIT(510) ["debugInit.c",L500]
JDWP exit error JVMTI_ERROR_INTERNAL(113): No transports initializedFATAL ERROR in native method: JDWP No transports initialized, jvmtiError=JVMTI_ERROR_INTERNAL(113)
Thank you for a nice short explanation, PHeath! Following your advice, I found the best way to solve the problem is simply to use CATALINA_OPTS instead of JAVA_OPTS.
Looking into catalina.sh, one can see CATALINA_OPTS is only used by the "start" and "start-security" commands, whereas JAVA_OPTS is also used by the "stop" command (at least with Tomcat 6.0.33 on openSUSE 12.1).
At least if you have Tomcat installed on Linux using a package manager then modifying the CATALINA_OPTS variable in /etc/tomcat6/tomcat6.conf (or whatever path in your distribution) is cleaner than changing the catalina.sh script directly, for the package manager assumes that the user changes only configuration files and breaking this assumption may cause problems when upgrading the Tomcat packages (e. g. lost settings because the catalina.sh file is overwritten).
I think one should prefer CATALINA_OPTS over JAVA_OPTS not only for JDWP but for many other options as well: e. g. if one uses the heap size option -Xmx... then it would be reasonable to put it into CATALINA_OPTS, as the "stop" command does not need much heap.
You are trying to debug tomcat on startup, so it binds to port 5005 when the jvm starts.
When you run catalina.sh stop, it starts up another jvm which also tries to bind to port 5005.
You need to move the debug args to the run and start arguments (in catalina.sh) of tomcat, putting them straight into the JAVA_OPTS is the cause of the issue you're having.
The problem is your tomcat is still running on the debug port(5005) or some other service running on the same port(5005).
If tomcat still running, you can kill it
if it in linux environment ps -ef|grep java, and identify the process id of it. and kill the process using sudo kill -9 .
If it in windows environment got to task manager and kill the tomcat and java process.
Now you should be able to start the server in debug mood without any prob.
This can happen on debugging unit test through the tool(eclipse) which has been executed through the maven. To sole this you can flow the same process.
First close the Eclipse and kill the java process as well and start it again.
This is due to both applications are listening the same port number i.e 8000 while running in debug mode.
One quick solution is change the debug port to 8001 in startup.bat
SET DEBUGPORT=8001
It seems that the port 5005 is already in use. Check open ports with netstat command.
This may be because you already opened tomcat. Check your processes.
It appears you are starting Tomcat with the Debugger enabled, This causes the JVM to attach to the Process for Debugging, However in the catalina.sh there is a case statement for start, stop, restart, so on and so forth. Issuing the stop command still adds this in as it is part of your Global JAVA_OPTS and tries to start the debugger listening on the same port for the shutdown command. If you remove the address=50005 from your JAVA_OPTS or use the start jdpa commands to start the VM with the debugger this will fix your problem.
Look at the default catalina.sh in the latest Tomcat distribution if you need a clean copy. It sounds like someone has made changes inside yours that are invalid and causing JDPA to run on start, stop, any command issued.
set JPDA_ADDRESS=8001 in catalina.bat i.e debug port
and change all 3 ports in server.xml
In my case (Tomcat installed form tarball) I had those debug options unintentionally set in my env. This fixed the error:
$ unset JAVA_OPTS
Related
Use Case
The liberty-maven-plugin has a debug goal which allows you to start the server in debug mode, but in the foreground.
Often when wanting to attach the debugger, this is all you'd need. You can execute tests separately somehow or via other goals launched from another shell.
But the debug goal, like the run goal, runs in the foreground and blocks until the server process completes.
If I want to continue to the next phase of my build, e.g. on to run integration tests, it could help to configure a start goal to start the server in debug mode, in the background, and continue on.
Use: src/test/resources/jvm.options
In src/test/resources/jvm.options, for example:
-agentlib:jdwp=transport=dt_socket,server=y,suspend=y,address=7777
This is the default value for the <jvmOptionsFile> configuration parameter (described here), so of course you could configure a different location if desired.
Note:
Though an alternative might appear to be to use the <jvmOptions> configuration, it does not work well with the commas (',') embedded in this value.
Warning:
You may be expecting a message from the starting JVM:
Listening for transport dt_socket at address: 7777
However you will not see this from your Maven execution log, it actually appears in the console.log file of the configured server. So the Maven execution will just pause at the point of logging message:
[INFO] Starting server defaultServer.
If you fail to connect in time you'll see:
[INFO] Server defaultServer start failed. Check server logs for details.
I have a problem with running my sample Spring Boot Application.
When I try to run it, this error occurs:
java.net.BindException: Address already in use: bind
at sun.nio.ch.Net.bind0(Native Method)
at sun.nio.ch.Net.bind(Unknown Source)
at sun.nio.ch.Net.bind(Unknown Source)
at sun.nio.ch.ServerSocketChannelImpl.bind(Unknown Source)
at sun.nio.ch.ServerSocketAdaptor.bind(Unknown Source)
at org.apache.tomcat.util.net.NioEndpoint.bind(NioEndpoint.java:473)
o.apache.catalina.core.StandardService : Failed to initialize connector [Connector[org.apache.coyote.http11.Http11NioProtocol-8080]]
org.apache.catalina.LifecycleException: Failed to initialize component [Connector[org.apache.coyote.http11.Http11NioProtocol-8080]]
at org.apache.catalina.util.LifecycleBase.init(LifecycleBase.java:106)
at org.apache.catalina.core.StandardService.initInternal(StandardService.java:559)
at org.apache.catalina.util.LifecycleBase.init(LifecycleBase.java:102)
at org.apache.catalina.core.StandardServer.initInternal(StandardServer.java:814)
at org.apache.catalina.util.LifecycleBase.init(LifecycleBase.java:102)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:139)
at org.apache.catalina.startup.Tomcat.start(Tomcat.java:335)
at org.springframework.boot.context.embedded.tomcat.TomcatEmbeddedServletContainer.initialize(TomcatEmbeddedServletContainer.java:57)
at org.springframework.boot.context.embedded.tomcat.TomcatEmbeddedServletContainer.<init>(TomcatEmbeddedServletContainer.java:52)
at
Is it ok the first time you run it, and run it again you get an error?
If this is the case, You need to stop service before running again.
Here is a way to stop.
Click the stop button that looks like this:
"Address already in use" means, there is already another application running on port 8080. Use your OS tools to find that process and end it, before you start your application, or let your application run on another port. If you use an embedded server in your Boot application, you can specify the following property:
server.port=8085
Of course you can choose whatever port you want.
I have a very simple solution:
As the answer above stated, when you start Spring Boot app, the PID of underneath server(Tomcat or Undertow, or whatever) will be shown in the console; you may start again the app without terminating the former one, especially when you are in debug mode, thus the error. This applies to Intellij, too.
But, if you have started again, the PID is no longer available for you because previous session output is cleared.
So, if you are using Eclipse, just close it, and open Task Manager to terminate other java.exe JVM process. Be sure that you have no other JVM-based services running which cannot be stopped. (Like Kafka server, Apache Storm, etc.)
The Tomcat instance is one of them.
Log shows that server is already started on port 8080. I faced the same problem. go to windows task manager and end process that is javaw.exe, it worked on my application.
Two possibilities
P1.Another Application is using port 8080
Solution:-
a.Stop that application and free port 8080 for your application.
b.Change your application server port, for that create a file named
application.properties in resource folder and add property
server.port = 8085
(8085 can be replaced by any port number of your choice which will not conflict with other
application server ports)
location of application.properties file
snippet of application.properties file
P2. Your application is already running
Solution
a. Pretty simple solution for this situation is stop your currently
running application and rerun it
b.If you want to run multiple instances of your application then keep
current application running change server port as explained above and
run the application the new instance will run of another port.
Even I faced this issue u can just stop the application(there is a stop button on the top toolbar) and restart again it worked for me and I used STS
In the Eclipse situation, check if there are items running in the window "Progress"(Windows > Show View > Progress)
Stop the running process, which might be locking your desired port.
Got the same error.
The springboot application has inbuilt tomcat server which runs on port 8080..if you have any other process currently running on port 8080,The java.net.BindException will raise..so kill the processes which are using 8080 thorugh cmd as follows:
-->
open command prompt as Administrator.
--> netstat -ano | findstr :<PORT>
netstat -ano | findstr :8080
TCP 0.0.0.0:8080 0.0.0.0:0 LISTENING 10568
TCP [::]:8080 [::]:0 LISTENING 10568
-->taskkill /PID <PID> /F
taskkill /PID 10568 /F
Now if you want recheck your running process by using netstat -ano | findstr :8080 command..
and again restart or rerun our application..
This is for first ever time you wanted to run springboot application.
Hope this might be helpfull,worked for me :)
Second case:
In the first time you run ok right? and run again it got an error? If right, You need stop service before run again..if it is the case follow #Sang9xpro
answer above.
Seems your server is already up. If you are using linux based system, type following command in terminal to check which port is active on your system.
"ps -ef | grep 8080"(or whatever port is mentioned)
Now you need to kill this one if you wish to run the server on same port.
kill -9 8080
Voilla!! Try booting your application once again and it will work.
Extra:
You'll come to me complaining an important application is already listening on mentioned port(8080) and you do not want to kill it. No probs.
Create an application.properties file inside your resource folder and change port to whatever you like.
server.port = 8081
Voilla!! You did it!! :)
Let me know if further clarifications required.
This is because you have run the spring boot application once in your eclipse IDE and closed the application and you assume that the embedded server is stopped. But it is not the case. Even after you closed your application in Eclipse -> Console window, embedded tomcat server is running. What you can do is, run your spring boot application again and look at the console messages. Immediately after Spring Logo, you can find Starting on with PID 16676. This is the PID you need to search in "Wndows Task Manager -> Processes -> PID". Select that process and "End Task". Now if you start your spring boot application, it will start without issues.
In intelliJ 12.0 on ubuntu 12.04 with glassfish 3.1.2.2, I'm trying to launch my web application in debug mode but I've got this error message:
Error starting domain domain1.
The server exited prematurely with exit code 134.
Before it died, it produced the following output:
FATAL ERROR in native method: JDWP No transports initialized, jvmtiError=AGENT_ERROR_TRANSPORT_INIT(197)
ERROR: transport error 202: bind failed: Address already in use
ERROR: JDWP Transport dt_socket failed to initialize, TRANSPORT_INIT(510)
JDWP exit error AGENT_ERROR_TRANSPORT_INIT(197): No transports initialized [../../../src/share/back/debugInit.c:741]
I try to change the port 9009 in the domain.xml by another one but it was unsuccessful.
Could you help me to fix this problem?
Thank you
I had this same problem too a few weeks ago. I dont remember 100% what I changed but I know it has to do with the file $GLASSFISH_HOME/glassfish/domains/domain1/config/domain.xml. If I recall I think I changed the following line:
<java-config debug-options="-Xdebug -Xrunjdwp:transport=dt_socket,server=n,suspend=y,address=9009" system-classpath="" classpath-suffix="">
In particular server and suspend flags. When I set them like this the error you described above went away.
I had the same problem, and was because the debug port 9009 had beeen occupied by the DbVisualizer application. DbVisualizer uses some random ports, and at this time, it chosed the 9009. In my case, I only had to close DbVisualizer and GlassFish started up in debug mode fine.
So, check out no processes have occupied your Glassfish debug port.
Another possible solution is to change this port, or use shared memory.
Regards
In recent versions of IntelliJ the application is aware of invalid settings for debug mode. If this is the case, when you open the Run/Debug configuration of your Java EE server, in the bottom you will see a warning message:
Just press the fix button and you will fix your 'domain.xml' configuration file.
This is also explained in this tutorial: https://www.jetbrains.com/help/idea/2016.1/developing-a-java-ee-application.html
For the future poor soul that has the same issue as me:
One of the tools that comes with Gigabyte mainboards (gCloud I believe) registers a Windows service on port 9009. This port then shows up in netstat -ano as being in use by PID 4 (Windows system something).
I am trying to run remote jboss in debug mode to debug my application and i have set
set JAVA_OPTS=-Xdebug -Xrunjdwp:transport=dt_socket,address=8787,server=y,suspend=y %JAVA_OPTS%
in run.bat file, and am trying to start the jboss server using ant jboss.start but it is taking some time and then timing out, am not sure why this is happening, is there a way out?
Also as jboss is timing out, I would like to increase bootup time for the server, how can i do it from the command line?
Side note, server.log file does not show any messages which jboss is trying to bootup in debug mode (not sure if this would help but thought so sharing this info.)
Any clue or suggestions?
You should set:
suspend=n
in debugger startup settings.
suspend - True if the target VM is to be suspended immediately before the main class is loaded; false otherwise.
Your JBoss waits infinitely for debugger connection, this is useful when you want to troubleshoot startup issues, otherwise do not suspend your VM and let the debugger be connected any time you want.
I was frustated to get jboss started in debug mode through command line
Finally following seemed to work
1.Below should be the last line in /bin/run.conf.bat
rem # Sample JPDA settings for remote socket debugging
set JAVA_OPTS=-Xdebug -Xrunjdwp:transport=dt_socket,address=8787,server=y,suspend=n %JAVA_OPTS%
If there is anything below this, delete it.
2.Also when you are running jboss from command prompt please check whether -Xdebug is at the start of JAVA_OPTS.
Then it should display following message
Listening for transport dt_socket at address: 8787
3.In eclipse use 127.0.0.1 instaed of localhost.
I don't know the reason behind it...but when I changed localhost to 127.0.0.1 it worked
(Make sure you replace localhost with 127.0.0.1 at 2 locations 1.Eclipse remote debug and 2.URL while running your application in browser)
Also check project name.
Sometimes we need to change the port number.
I never had such issues with tomcat.
I tried to start a glassfishv3 server in my windows XP system with the command "asadmin start-domain". The start failed due to a timeout. When I try to start again I get an error saying that the port 4848 is allready in use by another process. When I try to stop the server with "asadmin stop-domain" I get the error that it is not running.
Any idea how to solve this deadlock? I cannot find a Windows process with the name glassfish or asadmin to kill.
The process will be java.exe
You can use one of the sysinternals tools, like tcpview.exe for example to see which program is actually using that port.
Adding to Alexis' answer,
jps -v
will show you more about the java processes. Note the pid. You must have configured your path correctly for this to work.
Then do
taskkill /pid <pid>
You can also use jps to list all the Java processes on you machine. The GlassFish server main class is called ASMain