Driver error

Received following error in the wm.EDIINT.rules:processPayload service while processing inbound EDI document.
Not able to figue out the cause.Any help…?

com.wm.app.tn.err.EXMLException: wm.tn.doc:view com.wm.app.tn.db.DatastoreException Couldnt instantiate document {0} (0) com.wm.app.tn.db.DatastoreException: null (0) java.io.IOException: [wm-cjdbc32-0014][Oracle JDBC Driver]Internal error: Net8 protocol error. (1) java.io.IOException: [wm-cjdbc32-0014][Oracle JDBC Driver]Internal error: Net8 protocol error. (1) com.wm.app.tn.db.DatastoreException: null (0) java.io.IOException: [wm-cjdbc32-0014][Oracle JDBC Driver]Internal error: Net8 protocol error. (1) java.io.IOException: [wm-cjdbc32-0014][Oracle JDBC Driver]Internal error: Net8 protocol error. com.wm.app.tn.db.DatastoreException: null (0) java.io.IOException: [wm-cjdbc32-0014][Oracle JDBC Driver]Internal error: Net8 protocol error. (1) java.io.IOException: [wm-cjdbc32-0014][Oracle JDBC Driver]Internal error: Net8 protocol error. com.wm.app.tn.db.DatastoreException: null (0) java.io.IOException: [wm-cjdbc32-0014][Oracle JDBC Driver]Internal error: Net8 protocol error. (1) java.io.IOException: [wm-cjdbc32-0014][Oracle JDBC Driver]Internal error: Net8 protocol error. java.io.IOException: [wm-cjdbc32-0014][Oracle JDBC Driver]Internal error: Net8 protocol error. java.io.IOException: [wm-cjdbc32-0014][Oracle JDBC Driver]Internal error: Net8 protocol error. java.io.IOException: [wm-cjdbc32-0014][Oracle JDBC Driver]Internal error: Net8 protocol error. at com.wm.dd.jdbc.base.BaseBlobInputStream.read(Unknown Source) at com.wm.dd.jdbc.base.BaseInputStreamWrapper.read(Unknown Source) at java.io.BufferedInputStream.read1(BufferedInputStream.java:220) at java.io.BufferedInputStream.read(BufferedInputStream.java:277) at com.wm.app.tn.db.BDSingleDocOperations.getBytesFromStream(BDSingleDocOperations.java:401) at com.wm.app.tn.db.BDSingleDocOperations.get(BDSingleDocOperations.java:288) at com.wm.app.tn.db

Try to replace the datadirect/jdbc driver and check whether the isssue still persists. It normally happens due to the corruption of drivers/DB so also check whether the DB works fine. If I am not wrong you are using Oracle 9.x version.

Check the below link to Troubleshooting the Net8
http://www.infres.enst.fr/~talel/oracle/Doc8i/network.815/a67440/ch11.htm

Hope this helps