无法在Eclipse中调试简单的Java应用程序。 无法连接到虚拟机。 AGENT_ERROR_TRANSPORT_INIT（197）

Question

When i try to debug a simple application in Eclipse i receive a following error:

Cannot connect to VM com.sun.jdi.connect.TransportTimeoutException

And console provides me with a lonely string:

FATAL ERROR in native method: JDWP No transports initialized, jvmtiError=AGENT_ERROR_TRANSPORT_INIT(197)

I have JRE 1.6, JRE 1.7 and JDK 1.7 installed. Tried all of them.

I've seen tons of same topics, but not a single answer helped me to solve my issue. Here they are:

1) Disable Firewall. Doesn't help. I have latest Avast ver. 9.0 at the moment. I'm a bit suspicious about that software, because before updating my Avast i was able to debug in Eclipse. I think it may cause this error, but i do not have direct clues :). I may ping my machine, firewall doesn't block Eclipse traffic, etc.

2) Add strings to hosts file. No reaction. ::1 localhost.localdomain localhost 127.0.0.1 localhost

3) Changing Network Settings in Java Control Panel to "Direct" connection. Doubtful advice.

Also read that thing: http://wiki.eclipse.org/Debug/FAQ

Can anyone help me to find out what is happening? Or guide me in the right direction?

Answer 1

Avast fixed the issue in the release (build 9.0.2008.177.) it works for some users.

For more info: https://feedback.avast.com/responses/eclipse-debug-functionality-not-working-after-upgrade-to-avast-2014

Answer 2

I was experiencing the same issue. None of the things you tried worked for me either.

Eventually, I uninstalled Avast entirely and the problem went away. I reinstalled Avast 8.0 and I can still debug, so it must be an issue with the latest update.

Answer 3

The latest Avast update has a weird problem where it silently blocks network connections from Java applications, even on localhost, but doesn't close the connection.

I have tried reporting this, but so far have not breached the wall of frustratingly unhelpful tech-support.

Enabling 'Scan traffic from well-known browser processes' fixes this, but shouldn't be needed in the first place.

(I don't have enough reputation to add as a comment yet).