docker container for kafka connect (which java to use)

[PP]

I am trying to build a docker container for kafka connect and ran into some issues.

The distributed version worked.  But when I try to build the stand alone version I get this error with latest java version:

(I think there is also some issue w/ licensing with Oracle Java).

if I use java latest I would get error: Exception in thread "main" java.lang.IncompatibleClassChangeError: Implementing class...

if I use openjdk, I would get this error: bin/connect-standalone: exec: line 47: bin/kafka-run-class: not found

Does anybody know which version of java to use so that I can build the container?  Is it even possible?

Thanks

[PP]

Sorry I need to add some more info:

If I build the stand alone w/o our custom code, it seems to work.  When we add our jar file, I get the error IncompatibleClassChangeError.  The

only problem is the error dump is so obtuse that I can't figure out the offending item.

[2016-06-29 14:29:59,936] INFO StandaloneConfig values:

cluster = connect

rest.advertised.host.name = null

task.shutdown.graceful.timeout.ms = 5000

rest.host.name = null

rest.advertised.port = null

bootstrap.servers = [localhost:9092]

offset.flush.timeout.ms = 5000

offset.flush.interval.ms = 60000

rest.port = 8083

internal.key.converter = class org.apache.kafka.connect.json.JsonConverter

internal.value.converter = class org.apache.kafka.connect.json.JsonConverter

value.converter = class io.confluent.connect.avro.AvroConverter

key.converter = class io.confluent.connect.avro.AvroConverter

 (org.apache.kafka.connect.runtime.standalone.StandaloneConfig:165)

Exception in thread "main" java.lang.IncompatibleClassChangeError: Implementing class

at java.lang.ClassLoader.defineClass1(Native Method)

at java.lang.ClassLoader.defineClass(ClassLoader.java:763)

at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142)

at java.net.URLClassLoader.defineClass(URLClassLoader.java:467)

at java.net.URLClassLoader.access$100(URLClassLoader.java:73)

at java.net.URLClassLoader$1.run(URLClassLoader.java:368)

at java.net.URLClassLoader$1.run(URLClassLoader.java:362)

at java.security.AccessController.doPrivileged(Native Method)

at java.net.URLClassLoader.findClass(URLClassLoader.java:361)

at java.lang.ClassLoader.loadClass(ClassLoader.java:424)

at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:331)

at java.lang.ClassLoader.loadClass(ClassLoader.java:357)

at java.lang.ClassLoader.defineClass1(Native Method)

at java.lang.ClassLoader.defineClass(ClassLoader.java:763)

at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142)

at java.net.URLClassLoader.defineClass(URLClassLoader.java:467)

at java.net.URLClassLoader.access$100(URLClassLoader.java:73)

at java.net.URLClassLoader$1.run(URLClassLoader.java:368)

at java.net.URLClassLoader$1.run(URLClassLoader.java:362)

at java.security.AccessController.doPrivileged(Native Method)

at java.net.URLClassLoader.findClass(URLClassLoader.java:361)

at java.lang.ClassLoader.loadClass(ClassLoader.java:424)

at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:331)

at java.lang.ClassLoader.loadClass(ClassLoader.java:357)

at java.lang.ClassLoader.defineClass1(Native Method)

at java.lang.ClassLoader.defineClass(ClassLoader.java:763)

at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142)

at java.net.URLClassLoader.defineClass(URLClassLoader.java:467)

at java.net.URLClassLoader.access$100(URLClassLoader.java:73)

at java.net.URLClassLoader$1.run(URLClassLoader.java:368)

at java.net.URLClassLoader$1.run(URLClassLoader.java:362)

at java.security.AccessController.doPrivileged(Native Method)

at java.net.URLClassLoader.findClass(URLClassLoader.java:361)

at java.lang.ClassLoader.loadClass(ClassLoader.java:424)

at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:331)

at java.lang.ClassLoader.loadClass(ClassLoader.java:357)

at org.eclipse.jetty.server.ServerConnector.<init>(ServerConnector.java:96)

at org.apache.kafka.connect.runtime.rest.RestServer.<init>(RestServer.java:83)

at org.apache.kafka.connect.cli.ConnectStandalone.main(ConnectStandalone.java:68)

Thanks

[PP]

I think I've found out what the issue is.

On Wednesday, June 29, 2016 at 1:55:41 PM UTC-5, PP wrote:

[Andrew Pennebaker]

How were you able to resolve the issue? Please don't leave another dead end thread that neglects to mention the solution.

[Ryan Anguiano]

I use java:8-jre

You can see my images here: https://github.com/revpoint/confluent-docker-images