docker - How to fix springboot error Failed to retrieve RMIServer stub: javax.naming.CommunicationException error during JRMP connection establishment

Question

I am having issue with springboot maven project and cassandra in docker. I want to execute mvn verify and in pre-integration-test to start cassandra docker and api server, execute test and then in post-integration-test to stop server but I am facing error Could not contact Spring Boot application: Failed to retrieve RMIServer stub: javax.naming.CommunicationException [Root exception is java.rmi.ConnectIOException: error during JRMP connection establishment;

I have created github repo so you can easily reproduce error.

Steps to reproduce:

git clone https://github.com/gandra/docker-cassandra-with-initial-seed.git
cd docker-cassandra-with-initial-seed
mvn verify

this will produce error like this:

[INFO]
[INFO] --- spring-boot-maven-plugin:2.2.2.RELEASE:start (api-server-start) @ docker-cassandra-with-initial-seed ---
[INFO] Attaching agents: []
[INFO] ------------------------------------------------------------------------
[INFO] BUILD FAILURE
[INFO] ------------------------------------------------------------------------
[INFO] Total time:  18.501 s
[INFO] Finished at: 2021-01-21T18:39:05+01:00
[INFO] ------------------------------------------------------------------------
[ERROR] Failed to execute goal org.springframework.boot:spring-boot-maven-plugin:2.2.2.RELEASE:start (api-server-start) on project docker-cassandra-with-initial-seed: Could not contact Spring Boot application: Failed to retrieve RMIServer stub: javax.naming.CommunicationException [Root exception is java.rmi.ConnectIOException: error during JRMP connection establishment; nested exception is:
[ERROR]     java.io.EOFException]
[ERROR] -> [Help 1]
[ERROR]
[ERROR] To see the full stack trace of the errors, re-run Maven with the -e switch.
[ERROR] Re-run Maven using the -X switch to enable full debug logging.
[ERROR]
[ERROR] For more information about the errors and possible solutions, please read the following articles:
[ERROR] [Help 1] http://cwiki.apache.org/confluence/display/MAVEN/MojoFailureException

Any idea how to fix.

p.s. I am working on mac and this solution would work on mac and linux as well.

question from:https://stackoverflow.com/questions/65833116/how-to-fix-springboot-error-failed-to-retrieve-rmiserver-stub-javax-naming-comm

Answer 1

Code https://github.com/gandra/docker-cassandra-with-initial-seed is fixed and now working.

Basically 2 thing are changed:

1. Removed port mapping 9001 from docker-cassandra.sh.
2. Added sleep 20 seconds in cassandra_start function in docker-cassandra.sh in order to give time cassandra to properly boot up. Not nice but at least working.

Now followiung code should work with 1 integration test executing successfully:

git clone https://github.com/gandra/docker-cassandra-with-initial-seed.git
cd docker-cassandra-with-initial-seed
mvn verify