Eclipse Error: "Failed to Connect to Remote Vm"

Eclipse Error: Failed to connect to remote VM

Have you setup the remote VM to accept connections?

java -Xdebug -Xrunjdwp:server=y,transport=dt_socket,address=10000,suspend=n yourServer

Is there a firewall in the way?

Are you specifying the correct host / port?

Are you connected to a VPN?

Eclipse : Failed to connect to remote VM. Connection refused.

Which server are you using?

Like already said:

1. In your debug configuration you'll have to define the right port of your server (GF:9009 / Tomcat:8000)
2. You'll have to set the JVM property of the server to debug

For Glassfish:

    Log in to admin-console > Configurations > server-config > JVM-Settings > check DEBUG checkbox > restart server

For Tomcat:

create file debug.bat/.sh (depending on your OS) in %TOMCAT_HOME%/bin directory and write

    set JPDA_ADDRESS=8000
    set JPDA_TRANSPORT=dt_socket
    catalina.bat jpda start

in it.

After you've created this file start server by executing debug.bat/.sh.

Now you should be able to debug remotely in Eclipse after you set the necessary properties in your debug configuration.

Hope this helped! Have Fun!

EDIT

If you're running tomcat in a Win environment as a service you don't have a catalina.bat file in the bin-directory of your tomcat installation.

To set your server into debug-mode please try the following:

1. Run the Configuration option in Windows Menu or run %catalina_home%/bin/tomcat6w.exe
2. In Java tab, add this line to Java:

options:-Xrunjdwp:transport=dt_socket,address=8000,server=y,suspend=n

Failed to connect to remote VM. Connection refused. while tring to debug jar

Did you remember to enable debugging on the JVM you are trying to connect to? This is done through JAVA_OPTS when you run the remote JVM.

For example, to add debugging to tomcat, you would add these JAVA_OPTS when launching the java process:

-Xdebug -Xrunjdwp:transport=dt_socket,address=8000,server=y,suspend=n

Failed to connect to remote VM. Connection refused. when trying to debug remote java application in Flash Builder 4.7

After much struggles, I finally got it figured out. I had to make two changes.

1. I added tomcat.enable.debug=true to my catalina.properties file.

2. In my wrapper.conf, I had the following lines.

   wrapper.java.additional.9="-Xmx2048m"
   wrapper.java.additional.10="-XX:MaxPermSize=1024m"

My MaxPermSize was set to a smaller size than Xmx. I had to change that 1024 to 2048.

I then restarted my tomcat and it worked, finally!

Remote Debugging: Failed to connect to remote VM. Connection timed out

I bumped up the debug timeout (Windows/Preferences/Java/Debug/Communication/Debugger timeout) and restarted both the admin server and the managed server where the application is deployed and is listening on the debug port.

Failed to connect to remote VM. Connection refused.

Assuming the port and url are correct, you might want to check that a firewall (either on your local machine or on the remote host) isn't interfering with the debug.
Try to use the host's IP instead it’s name (to check for dns related problems).
you can also try to capture the tcp packets on the host (Wireshark is an excellent tool for that) to make sure that the packets are reaching the host. if so, it's a problem with the remote jvm's configuration, otherwise recheck the local configurations again.

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