I am working on an web application deployed in tomcat, the problem I am facing is neither it is allowing me to add to tomcat server nor it is allowing me to run on debug mode.
To debug an application running on an external tomcat, set that tomcat to allow remote debugging, e.g. with JVM params like this:
-agentlib:jdwp=transport=dt_socket,address=8787,server=y,suspend=n
Then create a new remote "Remote Java Application" debug config, select connection type "Standard (Socket Attach)" and provide host and port (in the example above the port would be 8787).
To run and debug a Java web application in Eclipse, you need to have a dynamic web project. The error message in your screen shot implies you haven't one. Have a look at the excellent tutorials of Lars Vogel:
http://www.vogella.com/tutorials/EclipseWTP/article.html
Related
I've some problems during configuration of remote Tomcat Server in Intellij
I've got a java web app that need to run in a cluster configuration, so I've got 3 Linux VMS in which I've installed tomcat server.
The problem is that I need to use this 3 tomcat servers together in debug mode in order to test and check issues.
I've tried some things but I was not able to get a solution.
OPTION A: configuring Remote JVM Debug:
I've tried to configure a Remote JVM Debug on my intellij configuring Catalina to listen to another port (2001) and launch it with the command: sh catalina.sh jpda start -agentlib:jdwp=transport=dt_socket,server=y,suspend=n,address=*:2001 but it stucks on this message "Connected to the target VM, address: 'IP:2001', transport: 'socket'"
OPTION B: remote Tomcat server:
I've tried configuring a remote Tomcat server (that is the thing I prefer) configuring remote host with SFTP, but in this case Tomcat service start, it works for some minutes and after that it goes in TimeoutException
[](https://i.stack.imgur.com/XmDKx.png)
I hope anyone can help me, I read a lot of thing on the internet but no-one works.
Please correct me if I did anything wrong:
I created a web service (WSDL) in Java and it has a method TestCall().
I also created a website http://testwebsite:8000/abc/index.html, and this website is calling the web service in step 1.
I created a remote debugging for it in IntelliJ. I put testwebsite as the host and 8000 as the port number.
Once I went to http://testwebsite:8000/abc/index.html and click on TestCall(), it didn't go to the breakpoint in IntelliJ. When I was trying to remote debug the web service, I got error:
Unable to open debugger port (testwesite:8000), handshake failed, connection permanently closed.
Can someone tell me what steps I missed? thanks
When you need to remotely debug an application, go to the settings (Run->Edit configurations) in IntelliJ.
Now click the + sign and add a Remote configuration. It tells you the command line to add to the startup of the JVM you start on the remote machine. It will be something like:
-agentlib:jdwp=transport=dt_socket,server=y,suspend=n,address=5005 for jvm 5-8.
Now you can start your remote web service on the server with these extra command line options. Then you start this configuration in IntelliJ. It will tell you Connected to target VM, address: 'server name', transport: 'socket'. You can add breakpoints as you are used to with local debugging.
As you see: the remote debugging does not use the web-port, but a different port that is opened especially for debugging purposes. If there are firewalls between the server and your workstation, please choose a port that is open, or have the firewall port opened (if possible).
This is my situation:
Eclipse ide that i use to develop java web apps.
Tomcat from apache.
Tomcat stack from bitnami.
OS Windows 8
If i deploy and debug to the apache tomcat all work without problem.
If i try the same thing with the bitnami stack, i see the exact same output from the console, like it is starting well, but actually it doesn't and it gets to the timeout saying it was unable to start withing 45 seconds.
I tried to increase the timeout but that's not the problem.
In both cases the Server Location is set to Use Tomcat installation, and i added my project to the source, everything else in the server config is default.
I'm not an expert of tomcat and java webapp deploying, and i need to get it working with the bitnami stack.
Any hint will be appreciated.
Ok i solved it, seems more a problem from eclipse.
In the server configuration i noticed the HTTP port was not listed and it was commented in server.xml
Could this be because the bitnami stack uses port 80 instead of 8080?
Anyway setting the port 80 in server.xml solved the problem.
Hello I have a problem debugging my GWT application from a remote computer once I run the GWT dev mode. Everything works fine when i go to
127.0.0.1:8888/TestApp.html?gwt.codesrv=127.0.0.1:9997
however when I go to
192.168.1.142:8888/TestApp.html?gwt.codesrv=192.168.1.142:9997
on the other computer in the network I get a popup saying "GWT module 'TestApp' may need to be (re)compiled.
I'm using GWT/Maven/Glassfish EJB for this project and I can't seem to wrap my mind around why it works locally and not remotely.
Here is my GWT Run configuration for eclipse:
-port 8888 -war /Users/abc123/Documents/workspace/path/to/snapshotfolder -remoteUI "${gwt_remote_ui_server_port}:${unique_id}" -startupUrl TestApp.html -logLevel INFO -bindAddress 0.0.0.0 -codeServerPort 9997 com.abc.def.gwt.TestApp
Any help is greatly appreciated.
Did you tried to Run your app like this:
192.168.1.142:8888/TestApp.html
don't use 8888 port use your tomcat port or and other server your using means use that server's port.
I've deployed some Managed Beans on WebSphere 6.1 and I've managed to invoke them through a standalone client, but when I try to use the application "jconsole" distributed with the standard JDK can can't make it works.
Has anyone achieved to connect the jconsole with WAS 6.1?
IBM WebSphere 6.1 it's supossed to support JSR 160 JavaTM Management Extensions (JMX) Remote API. Furthermore, it uses the MX4J implementation (http://mx4j.sourceforge.net). But I can't make it works with neither "jconsole" nor "MC4J".
I have the Classpath and the JAVA_HOME correctly setted, so the issue it's not there.
WebSphere's support for JMX is crap. Particularly, if you need to connect to any secured JMX beans. Here's an interesting tidbit, their own implementation of jConsole will not connect to their own JVM. I have had a PMR open with IBM for over a year to fix this issue, and have gotten nothing but the runaround. They clearly don't want to fix this issue.
The only way I have been able to invoke remote secured JMX beans hosted on WebSphere has been to implement a client using the "WebSphere application client". This is basically a stripped down app server used for stuff like this.
Open a PMR with IBM. Perhaps if more people report this issue, they will actually fix it.
Update: You can run your application as a WebSphere Application Client in RAD. Open the run menu, then choose "Run...". In the dialog that opens, towards the bottom on the left hand side, you will see "WebSphere v6.1 Application Client". I'm not sure how to start and Application Client outside of RAD.
IT WORKS !
http://issues.apache.org/jira/browse/GERONIMO-4534;jsessionid=FB20DD5973F01DD2D470FB9A1B45D209?page=com.atlassian.jira.plugin.system.issuetabpanels%3Aall-tabpanel
1) Change the config.xml and start the server.
-see here how to change config.xml: http://publib.boulder.ibm.com/wasce/V2.1.0/en/working-with-jconsole.html
2) start the jconsole with : jconsole -J-Djavax.net.ssl.keyStore=%GERONIMO_HOME%\var\security\keystores\geronimo-default -J-Djavax.net.ssl.keyStorePassword=secret -J-Djavax.net.ssl.trustStore=%GERONIMO_HOME%\var\security\keystores\geronimo-default -J-Djavax.net.ssl.trustStorePassword=secret -J-Djava.class.path=%JAVA_HOME%\lib\jconsole.jar;%JAVA_HOME%\lib\tools.jar;%GERONIMO_HOME%\repository\org\apache\geronimo\framework\geronimo-kernel\2.1.4\geronimo-kernel-2.1.4.jar
[or your version of geronimo-kernel jar]
3) in the jconsole interface->advanced, input:
JMX URL: service:jmx:rmi:///jndi/rmi://localhost:1099/JMXSecureConnector
user name: system
password: manager
4) click the connect button.
If you want the WebSphere MBeans this one works for me:
The key is to configure the classpath and the security properly.
in one line:
jconsole -J-Dwas.install.root=C:/was61 -J-Djava.ext.dirs=C:/was61/plugins;C:/was61/plugins/com.ibm.ws.security.crypto_6.1.0;C:/was61/lib;C:/was61/java/jre/lib/ext -J-Dcom.ibm.SSL.ConfigURL="file:../../properties/ssl.client.props" -J-Dcom.ibm.CORBA.ConfigURL="file:../../properties/sas.client.props" service:jmx:iiop://host:port/jndi/JMXConnector
where port = bootstrap port ex: (2809)
Be careful when setting the sas and the ssl props.
Robert
I have successfully connected to ActiveMQ and ServiceMix using the JConsole. Does WAS 6.1 use Java Management Extension (JMX) technology? JMX is required for JConsole.
If your path is set correctly it should work fine. On windows you go to System Properties -> Advanced Tab -> Environment Variables. Have your JAVA_HOME System variable set to the path of your JDK or JRE and your Path variable with %JAVA_HOME%/bin added somewhere in there. Then all you need to do is go to Start->Run->JConsole. Select the correct Process Name and your done.
Where are you having problems at? I hope this helps.
Edit:
Here is the Java Doc's on JConsole.
Hmm... I know that WebSphere is kind of hard to configure. Thats part of the reason we used ServiceMix for our ESB. Maybe its not enabled by default in WebSphere and you would have to turn it on in the config somewhere.
Websphere 6.1 does not support the JConsole for some reason even though it fully implements the JMS specs. Seems to be a week area at the moment. Your best bet is to look at the Admin client to implement you own console.
You all seem to be incorrect. I am running Websphere 6.1.041 , using JDK 1.5 , and I just started up Jconsole and used the "simple connect" tab to connect to localhost with port=0 and without a username and password and it works fine.