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Accumulo, mail # user - Uncaught exception


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Uncaught exception
jiun bookworm 2013-03-02, 16:24
This may be a noob issue, but some help would be appreciated.
im trying out accumulo, and i have setup zookeeper and hadoop in a single
node setup
when i try to start accumulo this is what i see,

accumulo-1.4.2]$ ./bin/accumulo init
Uncaught exception: org/apache/hadoop/io/WritableComparable
java.lang.NoClassDefFoundError: org/apache/hadoop/io/WritableComparable
    at java.lang.ClassLoader.defineClass1(Native Method)
    at java.lang.ClassLoader.defineClass(ClassLoader.java:634)
    at
java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142)
    at java.net.URLClassLoader.defineClass(URLClassLoader.java:277)
    at java.net.URLClassLoader.access$000(URLClassLoader.java:73)
    at java.net.URLClassLoader$1.run(URLClassLoader.java:212)
    at java.security.AccessController.doPrivileged(Native Method)
    at java.net.URLClassLoader.findClass(URLClassLoader.java:205)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:321)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:266)
    at org.apache.accumulo.core.Constants.<clinit>(Constants.java:91)
    at
org.apache.accumulo.server.util.Initialize.<clinit>(Initialize.java:99)
    at java.lang.Class.forName0(Native Method)
    at java.lang.Class.forName(Class.java:264)
    at
org.apache.accumulo.start.classloader.AccumuloClassLoader.loadClass(AccumuloClassLoader.java:363)
    at
org.apache.accumulo.start.classloader.AccumuloClassLoader.loadClass(AccumuloClassLoader.java:370)
    at org.apache.accumulo.start.Main.main(Main.java:48)
Caused by: java.lang.ClassNotFoundException:
org.apache.hadoop.io.WritableComparable
    at java.net.URLClassLoader$1.run(URLClassLoader.java:217)
    at java.security.AccessController.doPrivileged(Native Method)
    at java.net.URLClassLoader.findClass(URLClassLoader.java:205)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:321)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:266)
    ... 17 more

i have set the environement settings properly,

test -z "$ACCUMULO_HOME"         && export
ACCUMULO_HOME=/home/me/eng/source/storage/accumulo-1.4.2
test -z "$JAVA_HOME"             && export
JAVA_HOME=/usr/lib/jvm/jre-1.6.0-openjdk.x86_64/
test -z "$HADOOP_HOME"           && export
HADOOP_HOME=/home/me/eng/source/storage/hadoop
test -z "$ZOOKEEPER_HOME"        && export
ZOOKEEPER_HOME=/home/me/eng/source/storage/zookeeper-3.4.5
test -z "$ACCUMULO_LOG_DIR"      && export
ACCUMULO_LOG_DIR=$ACCUMULO_HOME/logs

what could be the issue, the hadoop im using is 2.0.3alpha.