Something in the latest snapshot must have broken the classloading in scoobi. I am running as usual from a fat-jar and yes, the fat-jar contains the kiama library:
0 Tue Apr 30 21:08:46 GMT-07:00 2013 META-INF/
106 Tue Apr 30 21:08:44 GMT-07:00 2013 META-INF/MANIFEST.MF
0 Tue Apr 30 21:08:46 GMT-07:00 2013 lib/
834115 Tue Apr 30 20:07:38 GMT-07:00 2013 lib/platform-scoobi-1.0-20130430.043106-65.jar
7137903 Thu Apr 04 20:49:58 GMT-07:00 2013 lib/scala-library-2.10.1.jar
2725673 Tue Apr 30 20:07:38 GMT-07:00 2013 lib/platform-1.0-20130430.043105-65.jar
199373 Fri Apr 13 13:25:34 GMT-07:00 2012 lib/jackson-core-asl-1.6.0.jar
535452 Fri Apr 13 13:25:34 GMT-07:00 2012 lib/jackson-mapper-asl-1.6.0.jar
163151 Wed Dec 05 09:44:28 GMT-07:00 2012 lib/commons-io-2.1.jar
7669 Fri Apr 13 01:23:56 GMT-07:00 2012 lib/slf4j-simple-1.6.1.jar
25496 Fri Apr 13 01:24:06 GMT-07:00 2012 lib/slf4j-api-1.6.1.jar
116316 Fri Apr 05 15:17:14 GMT-07:00 2013 lib/nscala-time_2.10-0.4.0.jar
573912 Fri Apr 05 15:17:14 GMT-07:00 2013 lib/joda-time-2.2.jar
38460 Mon Jan 14 16:23:04 GMT-07:00 2013 lib/joda-convert-1.2.jar
391834 Fri Apr 13 01:24:04 GMT-07:00 2012 lib/log4j-1.2.15.jar
6619 Tue Jan 22 19:14:46 GMT-07:00 2013 lib/UoMNormalizer-0.0.2-SNAPSHOT.jar
45944 Fri Apr 13 01:23:54 GMT-07:00 2012 lib/json-20090211.jar
2917869 Tue Apr 30 20:14:32 GMT-07:00 2013 lib/scoobi_2.10-0.7.0-cdh3-SNAPSHOT.jar
644148 Sat Apr 14 23:01:22 GMT-07:00 2012 lib/javassist-3.12.1.GA.jar
303139 Tue Apr 30 20:14:32 GMT-07:00 2013 lib/avro-1.7.4.jar
29555 Fri Apr 13 13:26:00 GMT-07:00 2012 lib/paranamer-2.3.jar
995968 Sat Apr 14 23:01:28 GMT-07:00 2012 lib/snappy-java-1.0.4.1.jar
241367 Tue Apr 30 20:14:32 GMT-07:00 2013 lib/commons-compress-1.4.1.jar
94672 Tue Apr 30 20:14:32 GMT-07:00 2013 lib/xz-1.0.jar
483453 Fri Apr 05 15:17:14 GMT-07:00 2013 lib/xstream-1.4.4.jar
7188 Sat Apr 14 23:01:26 GMT-07:00 2012 lib/xmlpull-1.1.3.1.jar
24956 Sat Apr 14 23:01:26 GMT-07:00 2012 lib/xpp3_min-1.1.4c.jar
542842 Fri Apr 05 15:17:22 GMT-07:00 2013 lib/kiama_2.10-1.5.0-SNAPSHOT.jar
91225 Fri Apr 05 15:17:14 GMT-07:00 2013 lib/jline-1.0.jar
462985 Fri Apr 05 15:17:20 GMT-07:00 2013 lib/ascii-graphs_2.10.0-0.0.2.jar
8621005 Tue Apr 30 20:14:32 GMT-07:00 2013 lib/scalaz-core_2.10-7.0.0.jar
287554 Tue Apr 30 20:14:32 GMT-07:00 2013 lib/scalaz-concurrent_2.10-7.0.0.jar
428820 Tue Apr 30 20:14:32 GMT-07:00 2013 lib/scalaz-effect_2.10-7.0.0.jar
479753 Tue Apr 30 20:14:32 GMT-07:00 2013 lib/scalaz-scalacheck-binding_2.10-7.0.0.jar
406456 Tue Apr 30 20:14:32 GMT-07:00 2013 lib/scalaz-typelevel_2.10-7.0.0.jar
773357 Tue Apr 30 20:14:32 GMT-07:00 2013 lib/scalaz-xml_2.10-7.0.0.jar
840559 Fri Apr 05 15:17:14 GMT-07:00 2013 lib/scalacheck_2.10-1.10.0.jar
4407 Sat Apr 14 23:01:22 GMT-07:00 2012 lib/test-interface-0.5.jar
451307 Thu Apr 04 20:49:56 GMT-07:00 2013 lib/scala-actors-2.10.0.jar
14384128 Thu Apr 04 20:52:48 GMT-07:00 2013 lib/scala-compiler-2.10.1.jar
3178531 Thu Apr 04 20:52:48 GMT-07:00 2013 lib/scala-reflect-2.10.1.jar
166555 Tue Apr 30 20:14:32 GMT-07:00 2013 lib/avro-mapred-1.7.4.jar
187840 Tue Apr 30 20:14:32 GMT-07:00 2013 lib/avro-ipc-1.7.4.jar
957162 Mon Sep 10 11:26:32 GMT-07:00 2012 lib/netty-3.4.0.Final.jar
449505 Sat Apr 14 23:01:30 GMT-07:00 2012 lib/velocity-1.7.jar
266688 Tue Apr 30 20:14:32 GMT-07:00 2013 lib/avro-ipc-1.7.4-tests.jar
70758 Tue Apr 30 19:48:50 GMT-07:00 2013 lib/dsprofile_2.10-0.2.0.jar
462519 Tue Apr 30 21:08:42 GMT-07:00 2013 lib/scoobay-1.1-SNAPSHOT.jar
0 Tue Apr 30 20:15:28 GMT-07:00 2013 com/
0 Tue Apr 30 20:15:28 GMT-07:00 2013 com/ebay/
0 Tue Apr 30 20:15:28 GMT-07:00 2013 com/ebay/scoobi/
etc etc
This is the exception
hadoop jar scoobay-1.1-SNAPSHOT-job.jar com.ebay.scoobi.examples.ExposureStats -
Dmapred.job.queue.name=myqueue
Exception in thread "main" java.lang.NoClassDefFoundError: org/kiama/attribution/AttributionCore
at java.lang.ClassLoader.defineClass1(Native Method)
at java.lang.ClassLoader.defineClassCond(ClassLoader.java:631)
at java.lang.ClassLoader.defineClass(ClassLoader.java:615)
at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:141)
at java.net.URLClassLoader.defineClass(URLClassLoader.java:283)
at java.net.URLClassLoader.access$000(URLClassLoader.java:58)
at java.net.URLClassLoader$1.run(URLClassLoader.java:197)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:190)
at java.lang.ClassLoader.loadClass(ClassLoader.java:306)
at java.lang.ClassLoader.loadClass(ClassLoader.java:247)
at java.lang.ClassLoader.defineClass1(Native Method)
at java.lang.ClassLoader.defineClassCond(ClassLoader.java:631)
at java.lang.ClassLoader.defineClass(ClassLoader.java:615)
at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:141)
at java.net.URLClassLoader.defineClass(URLClassLoader.java:283)
at java.net.URLClassLoader.access$000(URLClassLoader.java:58)
at java.net.URLClassLoader$1.run(URLClassLoader.java:197)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:190)
at java.lang.ClassLoader.loadClass(ClassLoader.java:306)
at java.lang.ClassLoader.loadClass(ClassLoader.java:247)
at java.lang.ClassLoader.defineClass1(Native Method)
at java.lang.ClassLoader.defineClassCond(ClassLoader.java:631)
at java.lang.ClassLoader.defineClass(ClassLoader.java:615)
at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:141)
at java.net.URLClassLoader.defineClass(URLClassLoader.java:283)
at java.net.URLClassLoader.access$000(URLClassLoader.java:58)
at java.net.URLClassLoader$1.run(URLClassLoader.java:197)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:190)
at java.lang.ClassLoader.loadClass(ClassLoader.java:306)
at java.lang.ClassLoader.loadClass(ClassLoader.java:247)
at java.lang.ClassLoader.defineClass1(Native Method)
at java.lang.ClassLoader.defineClassCond(ClassLoader.java:631)
at java.lang.ClassLoader.defineClass(ClassLoader.java:615)
at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:141)
at java.net.URLClassLoader.defineClass(URLClassLoader.java:283)
at java.net.URLClassLoader.access$000(URLClassLoader.java:58)
at java.net.URLClassLoader$1.run(URLClassLoader.java:197)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:190)
at java.lang.ClassLoader.loadClass(ClassLoader.java:306)
at java.lang.ClassLoader.loadClass(ClassLoader.java:247)
at com.nicta.scoobi.impl.ScoobiConfigurationImpl.<init>(ScoobiConfigurationImpl.scala:307)
at com.nicta.scoobi.impl.ScoobiConfigurations$class.apply(ScoobiConfigurationImpl.scala:337)
at com.nicta.scoobi.impl.ScoobiConfiguration$.apply(ScoobiConfigurationImpl.scala:342)
at com.nicta.scoobi.application.ScoobiAppConfiguration$class.configuration(ScoobiAppConfiguration.scala:50)
at com.ebay.scoobi.examples.ExposureStats$.com$nicta$scoobi$application$ScoobiApp$$super$configuration(ExposureStasts.scala:17)
at com.nicta.scoobi.application.ScoobiApp$class.configuration(ScoobiApp.scala:52)
at com.ebay.scoobi.examples.ExposureStats$.configuration$lzycompute(ExposureStasts.scala:17)
at com.ebay.scoobi.examples.ExposureStats$.configuration(ExposureStasts.scala:17)
at com.nicta.scoobi.application.ScoobiApp$class.parseHadoopArguments(ScoobiApp.scala:90)
at com.ebay.scoobi.examples.ExposureStats$.parseHadoopArguments(ExposureStasts.scala:17)
at com.nicta.scoobi.application.ScoobiApp$class.main(ScoobiApp.scala:74)
at com.ebay.scoobi.examples.ExposureStats$.main(ExposureStasts.scala:17)
at com.ebay.scoobi.examples.ExposureStats.main(ExposureStasts.scala)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at org.apache.hadoop.util.RunJar.main(RunJar.java:156)
Caused by: java.lang.ClassNotFoundException: org.kiama.attribution.AttributionCore
at java.net.URLClassLoader$1.run(URLClassLoader.java:202)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:190)
at java.lang.ClassLoader.loadClass(ClassLoader.java:306)
at java.lang.ClassLoader.loadClass(ClassLoader.java:247)
... 62 more