I received the following error after upgrading from 0.10.0 to 0.11.0. I understand the underlying issue, but I am not finding the exact cause. No other jar contains ServletRegistration except for avax.servlet-3.0.0.v201112011016.jar which is a dependency of samza-core. Hadoop has a dependency on older servlet and jetty jars. Would love to upgrade everything, but many of the transitive dependencies are quite old.
I have seen this error in the mailing list (triggered by an integration test), but there was no resolve. Hoping someone has encountered and fixed this issue. 2017-02-13 21:29:33.397 [main] JobModelManager$ [INFO] Saving task-to-changelog partition mapping: Map(Partition 0 -> 0) Exception in thread "main" java.lang.SecurityException: class "javax.servlet.ServletRegistration$Dynamic"'s signer information does not match signer information of other classes in the same package at java.lang.ClassLoader.checkCerts(ClassLoader.java:895) at java.lang.ClassLoader.preDefineClass(ClassLoader.java:665) at java.lang.ClassLoader.defineClass(ClassLoader.java:758) 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.apache.samza.coordinator.server.HttpServer$.$lessinit$greater$default$4(HttpServer.scala:63) at org.apache.samza.coordinator.JobModelManager$.getJobCoordinator(JobCoordinator.scala:128) at org.apache.samza.coordinator.JobModelManager$.apply(JobCoordinator.scala:109) at org.apache.samza.coordinator.JobModelManager$.apply(JobCoordinator.scala:115) at org.apache.samza.job.local.ThreadJobFactory.getJob(ThreadJobFactory.scala:40) at org.apache.samza.job.JobRunner.run(JobRunner.scala:125) at org.apache.samza.job.JobRunner$.main(JobRunner.scala:65) at org.apache.samza.job.JobRunner.main(JobRunner.scala)