JACOCO TCP METHOD(RUN TIME)

[Vansh Kumar Madan]

Hi ,

I am trying to run integration tests on my java code from remote server, so whenver my tests hit my code server, jacoco records it.

I am new to jacoco, till now i have gather that there is tcp server method which doesnot require any restart.

1) I have added below line in my /etc/profile.

export JAVA_OPTS="-javaagent:/home/vansh/jacoco/lib/jacocoagent.jar=address=*,port=57026,destfile=/home/vansh/jacoco/jacoco.exec,output=tcpserver"

2)but when i am trying to take dump using below command -

java -jar jacococli.jar dump --address * --port  57026 --destfile /home/vansh/jacoco/jacoco.exec

ERROR :: Exception in thread "main" java.net.UnknownHostException: jacococli.jar: Name or service not known
    at java.base/java.net.Inet6AddressImpl.lookupAllHostAddr(Native Method)
    at java.base/java.net.InetAddress$PlatformNameService.lookupAllHostAddr(InetAddress.java:929)
    

I checked that there is nothing running on port 57026, after i reload /etc/profile , could anyone confirm where i am going wrong?

Thanks in advance

[Marc Hoffmann]

Hi,

the dump command requires a specific IP address or host name to connect to:

java -jar jacococli.jar dump --address YourServer --port  57026 --destfile /home/vansh/jacoco/jacoco.exec

If you run the command on the same machine “localhost” also works.

Regards,

-marc

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[Vansh Kumar Madan]

Hi Mark,

After executing command with localhost:

java -jar jacococli.jar dump --address localhost --port  57026 --destfile /home/vansh/jacoco/jacoco-it.exec

Getting ERROR:

[INFO] Connecting to localhost/127.0.0.1:57026.
[WARN] Connection refused (Connection refused).
[INFO] Connecting to localhost/127.0.0.1:57026.

Exception in thread "main" java.net.ConnectException: Connection refused (Connection refused)
    at java.base/java.net.PlainSocketImpl.socketConnect(Native Method)
    at java.base/java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:399)
    at java.base/java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:242)
    at java.base/java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:224)
    at java.base/java.net.SocksSocketImpl.connect(SocksSocketImpl.java:403)

[Marc Hoffmann]

This means there is no JaCoCo agent running on localhost

You probably need to specify the IP address of your “remote server”.

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