Axis2 Container Error: Processing Operations Modules ClassNotFoundException Error in loading message receiver

Error:
org.apache.axis2.deployment.DeploymentException: ClassNotFoundException Error in l
oading message receiver tier.ws.migration.axis2.MLBUserWSInOutMessageReceiver; nested exception is:
java.lang.ClassNotFoundException: tier.ws.migration.axis2.MLBUserWSInOutMessageRec
eiver at org.apache.axis2.deployment.ServiceBuilder.populateService(ServiceBuilder.java:
329)

Cause:
You are attempting to use a service compiled in JDK 1.5 in a Axis2 container running under JDK 1.4.

Solution:
Compile the service using JDK 1.4

References:
http://www.mail-archive.com/axis-user@ws.apache.org/msg21397.html
http://issues.apache.org/jira/browse/AXIS2-1670

Decompressing a tgz file

gzcat (file.tgz) | tar xvf -

or

tar -xzvf (file.tgz)