java.lang.NoClassDefFoundError: org/terracotta/entity/SyncMessageCodec

[mathieucarbou]

Is there a packaging issue with the latest ehcache dependency ? I have a project depending on:

<dependency>
  <groupId>org.ehcache</groupId>
  <artifactId>ehcache-clustered</artifactId>
  <version>3.2.0-SNAPSHOT</version>
</dependency>

When creating a clustered CM, I have the exception:

java.lang.NoClassDefFoundError: org/terracotta/entity/SyncMessageCodec
    at org.ehcache.clustered.client.internal.lock.VoltronReadWriteLockEntityClientService.getMessageCodec(VoltronReadWriteLockEntityClientService.java:52)
    at com.terracotta.connection.entity.TerracottaEntityRef.fetchEntity(TerracottaEntityRef.java:80)
    at org.ehcache.clustered.client.internal.lock.VoltronReadWriteLock.createClientEntity(VoltronReadWriteLock.java:125)
    at org.ehcache.clustered.client.internal.lock.VoltronReadWriteLock.tryLock(VoltronReadWriteLock.java:64)
    at org.ehcache.clustered.client.internal.lock.VoltronReadWriteLock.tryWriteLock(VoltronReadWriteLock.java:54)
    at org.ehcache.clustered.client.internal.EhcacheClientEntityFactory.create(EhcacheClientEntityFactory.java:98)
    at org.ehcache.clustered.client.internal.service.DefaultClusteringService.autoCreateEntity(DefaultClusteringService.java:198)
    at org.ehcache.clustered.client.internal.service.DefaultClusteringService.start(DefaultClusteringService.java:146)
    at org.ehcache.core.internal.service.ServiceLocator.startAllServices(ServiceLocator.java:118)
    at org.ehcache.core.EhcacheManager.init(EhcacheManager.java:560)
    at org.terracotta.websessions.store.ehcache3.Ehcache3SessionStore.doInit(Ehcache3SessionStore.java:64)
    at org.terracotta.websessions.api.AbstractSessionStore.init(AbstractSessionStore.java:69)
    at org.terracotta.websessions.support.tomcat8.TerracottaTomcatStore.initInternal(TerracottaTomcatStore.java:52)
    at org.apache.catalina.util.LifecycleBase.init(LifecycleBase.java:107)
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:140)
    at org.apache.catalina.session.PersistentManagerBase.startInternal(PersistentManagerBase.java:847)
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
    at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5206)
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
    at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1403)
    at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1393)
    at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
    at java.lang.Thread.run(Thread.java:745)
Caused by: java.lang.ClassNotFoundException: org.terracotta.entity.SyncMessageCodec
    at java.net.URLClassLoader.findClass(URLClassLoader.java:381)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
    at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:331)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
    ... 25 more

[mathieucarbou]

SyncMessageCodec is into entity-server-api so this is normal that the client classpath does not have this class.

The issue is that the common module depends on org.terracotta:entity-server-api (it shouldn't) and some code used on client-side is using the server api, i.e. LockMessaging is using the server api but is also used into VoltronReadWriteLockEntityClientService.

[mathieucarbou]

Note: build process did not catch the error because of this issue: Terracotta-OSS/galvan#99